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Temperature Relays TR660IP monitor up to 6 sensors for up to 7 limits. Different sensors can be connected at the same time, e.g. Pt 100 (RTD) and PTC thermistors. Typical applications are monitoring of motors, generators or transformers. An other application is the use as a two or more step controller with additional monitoring of over- or undertemperature or monitoring of differences in temperatures of 2 sensors.Preset programs allow easy setting e.g. monitoring of transformers with/without monitoring of temperature of core or with/without controlling a ventilator.If the evaluation "2 out of x" is activated with several connected sensors, an alarm is only triggered when the limit value is exceeded in 2 sensors. This prevents false alarms due to a fault in one sensor. Operation can be made at the device or with a standard browser via Ethernet.6 inputs for sensors Pt 100, Pt 1000 and PTC, mixed sensors possible7 alarms / relay outputsalarm 2 of x = alarm only when limit is exceeded in min. 2 sensorsmonitoring of difference of temperaturesmonitoring of rate of change of temperaturelogging of temperatures and historypreset programs for protection of motors, transformers and moreinterface ethernet TCP/IP, values available via modbus TCPprogramming with browser via TCP/IP or with joystick at devicecoloured LED display for clear display of temperatures and states of alarmsuniversal power supply AC/DC 24-270 VAccessory: Installation frame ER8 for panel mountTR660IP RS485: interface RS485 (modbus RTU)TR660IP analog: 4 analog outputs 2x 0/4 - 20 mA and 2x 0/2 - 10 V, isolated from sensor inputs, individually programmable.
Temperature Relays TR660IP monitor up to 6 sensors for up to 7 limits. Different sensors can be connected at the same time, e.g. Pt 100 (RTD) and PTC thermistors. Typical applications are monitoring of motors, generators or transformers. An other application is the use as a two or more step controller with additional monitoring of over- or undertemperature or monitoring of differences in temperatures of 2 sensors.Preset programs allow easy setting e.g. monitoring of transformers with/without monitoring of temperature of core or with/without controlling a ventilator.If the evaluation "2 out of x" is activated with several connected sensors, an alarm is only triggered when the limit value is exceeded in 2 sensors. This prevents false alarms due to a fault in one sensor. Operation can be made at the device or with a standard browser via Ethernet.6 inputs for sensors Pt 100, Pt 1000 and PTC, mixed sensors possible7 alarms / relay outputsalarm 2 of x = alarm only when limit is exceeded in min. 2 sensorsmonitoring of difference of temperaturesmonitoring of rate of change of temperaturelogging of temperatures and historypreset programs for protection of motors, transformers and moreinterface ethernet TCP/IP, values available via modbus TCPprogramming with browser via TCP/IP or with joystick at devicecoloured LED display for clear display of temperatures and states of alarmsuniversal power supply AC/DC 24-270 VAccessory: Installation frame ER8 for panel mountTR660IP RS485: interface RS485 (modbus RTU)TR660IP analog: 4 analog outputs 2x 0/4 - 20 mA and 2x 0/2 - 10 V, isolated from sensor inputs, individually programmable.
Temperature Relays TR640IP monitor up to 6 sensors for up to 4 limits. Different sensors can be connected at the same time, e.g. Pt 100 (RTD) and PTC thermistors. Typical applications are monitoring of motors, generators or transformers. An other application is the use as a two or more step controller with additional monitoring of over- or undertemperature or monitoring of differences in temperatures of 2 sensors.Preset programs allow easy setting e.g. monitoring of transformers with/without monitoring of temperature of core or with/without controlling a ventilator.If evaluation "2 out of x" is activated with several connected sensors, an alarm is only triggered when the limit value is exceeded in 2 sensors. This prevents false alarms due to a fault in one sensor. Operation can be made at the device or with a standard browser via Ethernet.6 inputs for sensors Pt 100, Pt 1000 and PTC, mixed sensors possible4 alarms / relay outputsalarm 2 of x = alarm only when limit is exceeded in min. 2 sensorsmonitoring of difference of temperaturesmonitoring of rate of change of temperaturelogging of temperatures and historypreset programs for protection of motors, transformers and moreinterface ethernet TCP/IP, values available via modbus TCPprogramming with browser via TCP/IP or with joystick at devicecoloured LED display for clear display of temperatures and states of alarmsuniversal power supply AC/DC 24-270 VAccessory: Installation frame ER6 for panel mount
Web-IO universal limit value relay with Ethernet interface, built-in web server and 8 inputs for temperature sensors or other analog signals. The UR840IP can be connected to the internet or an intranet and operated via TCP/IP from a normal PC with a suitable browser.The device can simultaneously evaluate and monitor up to 8 different input signals. Each of the 4 output relays can be assigned up to 8 limit values, one per input. If a limit value is reached, an alarm is triggered and a relay switches. Example: Alarm 1 is activated when a temperature is exceeded at sensor input 3 (e.g. Pt 100) or the signal from a pressure transmitter (e.g. 4-20 mA) at input 5 falls below a limit value. The device also has an RS485 interface (Modbus RTU) that can be used to connect current sensors type STWA4MH and the relay box type URB40.NEW: Data visualization in the web interface.Accessory: Installation frame ER8 for panel mount ApplicationsThe UR840IP is used where one or more of the following features a required:The UR840IP is used to advantage wherever the following features are requiredmonitor up to 8 different analogue measured values and transfer them to the InternetMeasured value query and remote maintenance via intranet/internet Discover the difference between our UR series! Feature UR420IP UR840IP Sensors PT100, PT1000, KTY83, KTY84, thermocouples, 0-10V, 0/4-20mA PT100, PT1000, KTY83, KTY84, thermocouples, 0-10V, 0/4-20mA Sensor inputs 4 8 Digital inputs 2 4 Outputs 2x alarm relays 4x alarm relays, 1x analog Alarm types Sensor-specific thresholds, difference, rate of change temperature, 2 out of X Sensor-specific thresholds, difference, rate of change temperature, 2 out of X Virtual sensors 4 8 Display Display, LED Display, LED Configuration Joystick, web interface Joystick, web interface Network / Communication RS485, Ethernet RS485, Ethernet Other functions On/off delay, simulation, expansion with URB or STWA4MH On/off delay, simulation, data visualization, expansion with URB or STWA4MH Housing V6 V8 Applications Measurement monitoring and control Measurement monitoring and control
STWA4MH is a measuring transducer. It measures AC up to 60A and has an RS485 interface (Modbus RTU). The measured analog current value is made available as a digital signal and can be read by a PLC, an IPC or a master computer.The conductor to be measured is passed through an opening (Ø 11 mm). In case of small currents, the sensitivity of the current transducer can be increased by looping through the current-carrying conductor several times, e.g. double looping doubles the sensitivity. The measuring range of the STWA4MH is reduced by multiple looping. To measure currents of any size, the STWA4MH is simply looped into the secondary circuit of a large current transformer with a secondary output of 5A (lead the cable through STWA4MH several times).Application:The STWA4MH enables the space-saving an cost-effective measurement of the actual value of an alternating current. Compared to transducers with analog output, the bus technology significantly reduces the effort for the hardware (inputs) and the wiring. Applications are e.g. the recording of the current consumption of electrical motors in processing machines. Here the feed can be regulated depending on the load on the motor. Another example is the monitoring of consumers, e.g. heating elements, for failure.
NEW: Expected to be available from 3rd quarter of 2026 Web-IO universal limit value relay with Ethernet interface, built-in web server and 2 inputs for temperature sensors or other analog signals. The UR220IP can be operated via NFC or from a normal PC with a suitable browser. In addition, all values and statuses can be queried via Modbus TCP. The device can simultaneously evaluate and monitor up to 2 different input signals. Each of the 2 output relays can be assigned up to 2 limit values, one per input. If a limit value is reached, an alarm is triggered and a relay switches. The device has an analog current and an analog voltage output. Relays can also be switched on or off via the digital input.Example: Alarm 1 is activated when a temperature is exceeded at sensor input 1 (e.g. Pt 100) or the signal from a pressure transmitter (e.g. 4-20 mA) at input 2 falls below a limit value. Accessory: Installation frame ER4 for panel mount ApplicationsThe UR220IP is used where one or more of the following features a required:Monitor up to 2 different analogue measured valuesAccess via web browser to the local networkMonitoring of Pt100, Pt1000, PTC, KTY, analog measured values and resistance measurements
The vibrator control RS2K is a compact multiple time relay for triggering of vibrators in suction plants. In order to be able to operate suction plants at an optimum, the filters which get clogged by sawdust, chips or dust, have to be dedusted by vibration from time to time. The vibration action is by no means to be carried out the suction running or while slowing down the ventilator. If suctioning is started during vibration, the process is immediately to be interrupted. Prior to starting the vibration action, an adjustable deceleration time is running to delay the ventilator before start of vibration. This means that short stoppages can be bypassed without being obliged to carry out a vibration every time.Start of deceleration time by break contact at Y1/Z0 (e.g. from contactor suction motor)Starting of deceleration time through current transformer STWA 1/STWA1H at Z0/Z1 (e.g. L1 from suction motor)adjustable deceleration time 5...30 min.Relay K1: continous vibration 20 s or impulsevibration 18 s with 3 s clockRelay K2: impulse-vibration 40 s with clock 0.5 s or 1.0 s (for magnet valves)LED (yellow) signals deceleration timeLED (green) signals vibration actionautomatic interruption of the vibration action when starting the suction process.Discover the difference between RS1K and RS2K! Type RS1K RS2K Rapping time point Tn after switching on the first machine After Σ(machine runtime) ≥ Tn Tn 1 - 30 min 5 - 30 min Run-down time - 60s Rapping interval K1: for 18s in 3s or continuous vibrating for 20s K1: or 18s in 3s or continuous vibrating for 20s K2: every 0,5s or 0,8s K2: every 0,5s or 1s Display Device power on: - Device power on: LED green Waiting for vibration time: LED red Waiting for vibration time: LED yellow Cleaning active: LED green Cleaning active: LED green flashing Run-down time: - Run-down time: LED yellow flashing Control voltage AC/DC 24 - 240 V AC/DC 24 - 270 V
NEW: For the German regulation "NELEV" and "EAAV"The grid decoupling relay UFR1002IP is the "big brother" of the UFR1001E and monitors voltage and frequency in three-phase and AC grids.With a color LCD display (German/English) and joystick, it is even easier to operate than the UFR1001E. Measured values and settings are clearly displayed. The device can be programmed, updates installed and the alarm memory read out via the integrated IP interface. The real-time clock (with power reserve) simplifies the traceability of the alarms. Up to 1,200 V can be monitored in conjunction with the VG1200 coupling device. The device has a two-channel, single-fault-safe design and thus meets the requirements of VDE-AR-N 4105:2018-11. The function of the connected switch is monitored. If monitoring is activated, the device does not switch on again if a switch-off error is detected.Limit values for different applications are preset. Where permitted, they can easily be changed. If the nominal voltage is changed, the device automatically adjusts the limit values. With the standby input, a remote shutdown can be implemented, e.g. with a ripple control receiver.Monitoring ofUnder/over voltage 15-520V (with ZIEHL VG1200 coupling device up to 1,200 V)Under/over frequency 45-65 HzVoltage quality (10-minute average)Vector shift 2-65°ROCOF, rate of change of frequency df/dt 0.100...5.000 Hz/sZero voltage U0 (ANSI 59v0)passive anti islanding protectionFeatures:single-fault-proof, with monitoring of connected switch (can be switched off when using the integrated switch of PV and battery convertersProgrammable restart attempts in the event of a switch-on error in the connected switchRelay K3 with programmable functions, including life contact, delayed switch-on signal for switches or error messagesResponse time adjustable 0.05 … 300,0 sSwitch-back time adjustable 0 … 6,000 sPreset according to VDE-AR-N 4105-2018-11 (Pr 1.02, Pr 1.08 + 1.09) and VDE-AR-N 4105-2011-08 (Pr 1.01)Preset according to VDE-AR-N 4110-2018-11 (Pr 1.11-1.14) and bdew guideline (Pr 1.03-1.06)automatic adjustment of the switching points when the nominal voltage is changedAlarm counter for 100 alarms (with trigger value, cause and date/time, time of restart)3 programmable digital inputsStandby counter and timer with standby on/off date/timeTest and simulation function with measurement of switch-off timesSealing option and code protection for settingsInterface ethernet TCP/IP, values available via modbus TCPSimple commissioning and programming thanks to preset basic programs and transmission via IP interfaceSupply voltage AC/DC 24-270 VHousing for DIN-rail-mount, 105 mm wide, mounting height 66 mmAccessory: Installation frame ER6 for panel mount
Relay extension box type URB40, for universal relay box type URThe URB40 universal relay box is an extension box for UR devices that can be used to control up to four additional relay outputs via Modbus RTU. The URB40 monitors the communication between the devices and can transfer each relay output to a predefined state in the event of a timeout. The device has no operating elements and is controlled and configured exclusively via the RS-485 interface.Accessory: Installation frame ER4 for panel mount ApplicationsWith the URB40, an additional four alarms and relays are available, and the device can also be easily operated on other control systems via the integrated RS 485 interface.4 additional alarmsEasy extension of existing control systems of the UR seriesSpace-saving installation
Zero Export Device and Energy Flow Relay, optimization of self-consumption of self generated energy.The successor model to our popular EFR4001IP: Relays for energy flow measurement type EFR4002IP monitor the current flow between public power grid and generating plant / consumer. Operation is made comfortably via integrated webserver or directly at the device. Measured values are displayed neatly arranged at device on monitor. When the own power plant generates more power than actually is consumed it often is more economical to consume the excess energy self. This is especially reasonable when the difference is high between the price you pay to the grid provider and the price the provider pays for fed in energy.Many areas suitable for photovoltaics could not be used so far, since only a limited amount of power can be fed in at the grid connection point. In Germany new standards VDE-AR-N 4105:2018-11 allow exceeding this value by up to 66.6% or more installed capacity. The prerequisite for this is that the overbuilt power is consumed and not fed into the grid. In order to still ensure the stability of the system, this can be monitored with EFR4002IP. The same applies to zero export, when no energy at all may be fed into the grid. In this case, the device can be used as an energy flow direction sensor (EnFluRi). The EFR4002IP has been optimized for these functions.Data exchange with PPC (Power Plant Controller) possible.Functions:Switching of up to 3 consumers: the largest consumer, ranked 1-2-3 or combination of 3 consumers (7 levels)Switch on and off points. At which energy flow consumers are switched on and off againSwitch on and off delay of consumers, minimum on time.Control of heat pumps (SG-ready), battery chargers, invertersFor the use of Rogowski coils, please have a look at our EFR4002IPRNEW:Can be used for medium-voltage applications Connection of earthed medium-voltage transformers and series connected measuring devicesFor the German regulation "NELEV" and "EAAV"Suitable current transformers:Current transormers scaleable up to 2.400 A, secondary 1 A or 5 A (for Pav,e min. class 1) for example ZIEHL Type AS or WSCompact CTM7, 64/1 A, Kl. 1, 0,5 VA
Web-IO universal limit value relay with Ethernet interface, built-in web server and 4 inputs for temperature sensors or other analog signals. The UR420IP can be connected to the internet or an intranet and operated via TCP/IP from a normal PC with a suitable browser.The device can simultaneously evaluate and monitor up to 4 different input signals. Each of the 2 output relays can be assigned up to 4 limit values, one per input. If a limit value is reached, an alarm is triggered and a relay switches. Example: Alarm 1 is activated when a temperature is exceeded at sensor input 3 (e.g. Pt 100) or the signal from a pressure transmitter (e.g. 4-20 mA) at input 5 falls below a limit value. The device also has an RS485 interface (Modbus RTU) that can be used to connect current sensors type STWA4MH and the relay box type URB40.Accessory: Installation frame ER6 for panel mount ApplicationsThe UR420IP is used where one or more of the following features a required:monitor up to 4 different analogue measured values and transfer them to the InternetMeasured value query and remote maintenance via intranet/internet Discover the difference between our UR-series! Feature UR420IP UR840IP Sensors PT100, PT1000, KTY83, KTY84, thermocouples, 0-10V, 0/4-20mA PT100, PT1000, KTY83, KTY84, thermocouples, 0-10V, 0/4-20mA Sensor inputs 4 8 Digital inputs 2 4 Outputs 2x alarm relays 4x alarm relays, 1x analog Alarm types Sensor-specific thresholds, difference, rate of change temperature, 2 out of X Sensor-specific thresholds, difference, rate of change temperature, 2 out of X Virtual sensors 4 8 Display Display, LED Display, LED Configuration Joystick, web interface Joystick, web interface Network / Communication RS485, Ethernet RS485, Ethernet Other functions On/off delay, simulation, expansion with URB or STWA4MH On/off delay, simulation, data visualization, expansion with URB or STWA4MH Housing V6 V8 Applications Measurement monitoring and control Measurement monitoring and control
Bus module for controlling sliders in extraction systemsSTW168M and STW161M shutter modules control up to 8 shutters in extraction systems in conjunction with an STW164IP control unit. Up to 4 STW168M units can be combined with one STW164IP control unit. They are simply mounted next to the STW164IP in the control cabinet. Alternatively, they can be placed near the slide valves. In this case, the module only needs to be connected with one bus cable. The long supply lines to the sliders from the control cabinet are no longer required. At the same time, it is possible to use single modules STW161M in the same system (sliders on STW161M only DC 24 V).Function and propertiesModule for connecting up to 8 slidersOutputs potential-free changeover contacts for 24 or 230 VInputs for detecting the operating status of the machines (on/off), response threshold 0.5...9.9 A adjustable on the STW164IPControl via STW164IP (max. 4 x STW168M can be connected)Bus address 0...31 adjustableControl voltage DC 24 V (via 4-pole bus cable)LEDs for input and output statusesConnections via screw terminalsMounting Distribution board installation on top-hat rail EN60715Dimensions W x H x D: (without screw connections) 94 x 130 x 57 mmAccessories: ER6 mounting frame for panel mounting
In order to achieve higher efficiencies and to reduce line losses, inverters with a higher output voltage than the usual 3AC 400 V are often used in large on-site generation systems.So that the grid and system protection can monitor this high voltage, it must be reduced. This is usually done with voltage converters. With the VG1200 coupling device, an ohmic voltage divider is available that takes on this task. In conjunction with the VG1200 coupling device, the UFR1002IP can measure voltages of up to 1200 V. The display in the UFR1002IP is scalable. This means that the voltages at the input of the VG1200 are displayed and the limits for protection against over- and undervoltage are set accordingly. Both devices together meet the requirements of VDE-AR-N 4110 (feeding into the medium-voltage grid).Measuring of voltage up to 1200 VMeasuring tolerance = 1,2% of nominal voltage (of UFR1002IP)No voltage converters requiredDisplay of the correct voltage on the UFR1002IP (scalable)No supply voltage requiredHousing V6, 105 mm wide
NEW: Our EFR4002IPR, specifically for the use of Rogowski coils Measuring input: 333mV for Rogowski coilsEnergy flow direction sensor and feed-in limitation, Trigger time less than 0.05sZero-Export device or Limiter less than 0.2 sPPC (Power Plant Controller) -compliant communication Zero Export Device and Energy Flow Relay, optimization of self-consumption of self generated energy.Our relays for energy flow measurement type EFR4002IPR monitor the current flow between public power grid and generating plant / consumer. Operation is made comfortably via integrated webserver or directly at the device. Measured values are displayed neatly arranged at device on monitor. When the own power plant generates more power than actually is consumed it often is more economical to consume the excess energy self. This is especially reasonable when the difference is high between the price you pay to the grid provider and the price the provider pays for fed in energy.Many areas suitable for photovoltaics could not be used so far, since only a limited amount of power can be fed in at the grid connection point. In Germany new standards VDE-AR-N 4105:2018-11 allow exceeding this value by up to 66.6% or more installed capacity. The prerequisite for this is that the overbuilt power is consumed and not fed into the grid. In order to still ensure the stability of the system, this can be monitored with EFR4002IPR. The same applies to zero export, when no energy at all may be fed into the grid. In this case, the device can be used as an energy flow direction sensor (EnFluRi). The EFR4002IPR has been optimized for these functions.Data exchange with PPC (Power Plant Controller) possible.Functions:Switching of up to 3 consumers: the largest consumer, ranked 1-2-3 or combination of 3 consumers (7 levels)Switch on and off points. At which energy flow consumers are switched on and off againSwitch on and off delay of consumers, minimum on time.Control of heat pumps (SG-ready), battery chargers, inverters
Single PTC-resistor Type MINIKA K
PTC-resistor temperature sensors (also called PTC-resistors or thermistors) are temperatur dependent semiconductor resistors whose main function is to alter their electrical resistance drastically when their body temperature reaches the nominal trip temperature NAT (TNF).PTC-resistors are used principally to protect windings in electromotors or transformers against excess temperature. They also find application in machines, tooling machines especially machine bearings and controlling the temperature of power semiconductors.PTC-resistor temperature sensors are particularly suited to this purpose due to their precise response range combined with small dimensions and minimal thermal inertia at low cost.
Current Transformer Type STWA1
The STWA1 current transformer is made to match the STW current monitor. One current transformer is required for each line being monitored. The STWA1 consists of a climate-proven sealed-in coil with toroidal tape core. The connection cables are permanently fixed to the transformer and are 1 m in length. The level of the current to be monitored is limited to 100 A continously, 300 A for max. 10s.In case of current of more than approx. 5 A, an LED can be triggered directly via the STWA 1 current transformer. Thus it's easy for users to visually monitor the current conduction in a line. The LED is protected by an anti-parallel diode or by its connection in series. A protective resistor is necessary depending on the LED used or the level of current being monitored.Weight: approx. 43 g
Voltage and Frequency Relay Type UFR1001E
The grid- and plant protection device UFR1001E monitors voltage and frequency in plants for owngeneration of electricity. It complies with the requirements of VDE-AR-N 4120:2018-11, VDE-AR-N 4110:2018-11, VDE-AR-N 4105:2018-11, G98 and G99, ÖVE/ÖNORM E 8001-4-712:2009 and other standards for generators connected to the public grid.The UFR1001E is a dual-channel device and thus one-fault-proof. The function of the output-relays and of the connected switches can be monitored with feed-back contacts. When a connected switch does not switch off, the UFR does not switch on again. When a switch does not switch on it makes 2 restarts and thus improves availability of monitored plant.The limits are pre-set according to VDE-AR-N 4105-2011-08, VDE-AR-N 4105:2018-11 and other standards. They can be changed if required and be protected with a code and/or a seal.With a 2-step test both channels can be tested individually and the triggering time of connected switches is measured.The standby input allows a remote shutoff e.g. with a RCR.NEW: Our UFR1002IPWould you like to measure upt o 1,200 V?You need an interface (Modbus TCP)?You want a plain text LCD display?You need a seperate life contact?Then Take a look at the new UFR1002IP!
Electronic Current-Transducer Type STWA2AH
The STWA2 AH is a current-transducer for AC currents 0...20/100 A. With the STWA 2 AH the value of a current can be evaluated very economically and space-saving. The output-signal 4...20 mA can be evaluated or displayed with components with analog inputs, e.g. PLCs or ZIEHL digital displays type MINIPAN ®.Overview of Functionscurrent-proportional analog output DC 4...20 mA according to AC-measuring rangemeasuring range (20/100 A) can be changed with bridgeinsulated analog outputsupply DC 9-30 V (via 4-20 mA-loop)electrical connection via screwless pluggable terminalsDIN-rail-mount or with screwsplug-in current transformer (Ø 11 mm)
Relay for Voltage and Frequency UFR1002IP
NEW: For the German regulation "NELEV" and "EAAV"The grid decoupling relay UFR1002IP is the "big brother" of the UFR1001E and monitors voltage and frequency in three-phase and AC grids.With a color LCD display (German/English) and joystick, it is even easier to operate than the UFR1001E. Measured values and settings are clearly displayed. The device can be programmed, updates installed and the alarm memory read out via the integrated IP interface. The real-time clock (with power reserve) simplifies the traceability of the alarms. Up to 1,200 V can be monitored in conjunction with the VG1200 coupling device. The device has a two-channel, single-fault-safe design and thus meets the requirements of VDE-AR-N 4105:2018-11. The function of the connected switch is monitored. If monitoring is activated, the device does not switch on again if a switch-off error is detected.Limit values for different applications are preset. Where permitted, they can easily be changed. If the nominal voltage is changed, the device automatically adjusts the limit values. With the standby input, a remote shutdown can be implemented, e.g. with a ripple control receiver.Monitoring ofUnder/over voltage 15-520V (with ZIEHL VG1200 coupling device up to 1,200 V)Under/over frequency 45-65 HzVoltage quality (10-minute average)Vector shift 2-65°ROCOF, rate of change of frequency df/dt 0.100...5.000 Hz/sZero voltage U0 (ANSI 59v0)passive anti islanding protectionFeatures:single-fault-proof, with monitoring of connected switch (can be switched off when using the integrated switch of PV and battery convertersProgrammable restart attempts in the event of a switch-on error in the connected switchRelay K3 with programmable functions, including life contact, delayed switch-on signal for switches or error messagesResponse time adjustable 0.05 … 300,0 sSwitch-back time adjustable 0 … 6,000 sPreset according to VDE-AR-N 4105-2018-11 (Pr 1.02, Pr 1.08 + 1.09) and VDE-AR-N 4105-2011-08 (Pr 1.01)Preset according to VDE-AR-N 4110-2018-11 (Pr 1.11-1.14) and bdew guideline (Pr 1.03-1.06)automatic adjustment of the switching points when the nominal voltage is changedAlarm counter for 100 alarms (with trigger value, cause and date/time, time of restart)3 programmable digital inputsStandby counter and timer with standby on/off date/timeTest and simulation function with measurement of switch-off timesSealing option and code protection for settingsInterface ethernet TCP/IP, values available via modbus TCPSimple commissioning and programming thanks to preset basic programs and transmission via IP interfaceSupply voltage AC/DC 24-270 VHousing for DIN-rail-mount, 105 mm wide, mounting height 66 mmAccessory: Installation frame ER6 for panel mount
PTC-Relay type MSF220K
PTC-relay for the monitoring of dry transformers. Alarm 1 with relay in closedcircuit current mode for preliminary warning, releases at over-temperature at PTC-set 1 and serves at the same time as functional monitoring. Alarm 2 in operating current mode. Thus no wiping signal occurs when switching on the supply voltage on. Additional terminals enable comfortable wiring from supply voltage to relays K1 and/or K2.Changes from T221717 / T221718 to T228143 / T228144: Version with spring terminals RoHS/REACH compliantFurther information can be found in our customer information: "New terminals for K-type devices"Changes from T221715 / T221716 to T221717 / T221718: cURus, monitoring of sensors for short circuit an interrupt activatable, improved test functionFunctions2 PTC resistor sets2 output relays 1 change-over contact (co)/ 1 normally open contact (no)monitoring of sensors for short-circuit and break activatableTEST-button (delayed)LEDs for ON, alarm 1 and 2red LEDs for alarm 1 and alarm 2K-type housingHousing for mounting on DIN-rail 35 mm or wall-mount with screws M4Replacement for foreign device Elbag/Joppich TS-01
Electronic Current-Transducer Type STWA4MH
STWA4MH is a measuring transducer. It measures AC up to 60A and has an RS485 interface (Modbus RTU). The measured analog current value is made available as a digital signal and can be read by a PLC, an IPC or a master computer.The conductor to be measured is passed through an opening (Ø 11 mm). In case of small currents, the sensitivity of the current transducer can be increased by looping through the current-carrying conductor several times, e.g. double looping doubles the sensitivity. The measuring range of the STWA4MH is reduced by multiple looping. To measure currents of any size, the STWA4MH is simply looped into the secondary circuit of a large current transformer with a secondary output of 5A (lead the cable through STWA4MH several times).Application:The STWA4MH enables the space-saving an cost-effective measurement of the actual value of an alternating current. Compared to transducers with analog output, the bus technology significantly reduces the effort for the hardware (inputs) and the wiring. Applications are e.g. the recording of the current consumption of electrical motors in processing machines. Here the feed can be regulated depending on the load on the motor. Another example is the monitoring of consumers, e.g. heating elements, for failure.
Coupling Device for Voltage Type VG1200
In order to achieve higher efficiencies and to reduce line losses, inverters with a higher output voltage than the usual 3AC 400 V are often used in large on-site generation systems.So that the grid and system protection can monitor this high voltage, it must be reduced. This is usually done with voltage converters. With the VG1200 coupling device, an ohmic voltage divider is available that takes on this task. In conjunction with the VG1200 coupling device, the UFR1002IP can measure voltages of up to 1200 V. The display in the UFR1002IP is scalable. This means that the voltages at the input of the VG1200 are displayed and the limits for protection against over- and undervoltage are set accordingly. Both devices together meet the requirements of VDE-AR-N 4110 (feeding into the medium-voltage grid).Measuring of voltage up to 1200 VMeasuring tolerance = 1,2% of nominal voltage (of UFR1002IP)No voltage converters requiredDisplay of the correct voltage on the UFR1002IP (scalable)No supply voltage requiredHousing V6, 105 mm wide
Pt100-Temperature-Sensors Type TF101K
TF101 temperature sensors use EN 60751/IEC 60751 platinum resistance temperature detectors (RTD). For precise temperature measurement the Platinum Resistance Thermometer offers the best overall advantages in repeatability and stability over a long period. High accuracy allows replacement of a sensor without any need for re-adjust of the connected measuring devices or thermostats. TF101 temperature sensors are available in different designs.The TF1001/K design is suitable for installation in transformer and motor windings. When installing in windings, ensure that the measuring resistor is not subjected to pressure and that there is no tensile load on the cable.Cable length: 2000 mmWeight: approx. 10 g
PTC-Resistor Relay Type MS220C
This compact device is the smallest version of all our PTCresistor relays.terminals outsideprotection terminals IP 20Relays 1 change-over-contact (co)Replacement for foreign device Zeidler TÜS Type MS220C MS220K MSF220K MSR220K Art.-No. T221830 T221821 T221804 T221805 T228102 T228143 T228111 Number of Sensor Inputs 1xPTC 1xPTC 1xPTC 1xPTC 1xPTC 2xPTC 1xPTC Outputs 1x Changeover 1x Changeover 1x Changeover 1x Changeover 1xChangeover 1x Changeover, 1xCloser 1x 2 Changeover Alarm type Limit value; Fixed Limit value; Fixed Limit value; Fixed Limit value; Fixed Limit value; Fixed Limit value; Fixed Limit value; Fixed Alarm locked Short Circuit Monitoring PTC Line Break Monitoring PTC Display - - - - 1x Power LED, 1x Alarm LED 1x Power LED, 2x Alarm LED 1xAlarm, 1xPower Supply Voltage 24V AC/DC 24-240V AC/DC 220 - 240V AC 400V AC/DC 24-240V AC/DC 24 - 240V AC/DC 24-240V AC/DC Approvals CE, cuRUs, UKCA CE, cuRUs, UKCA CE, cuRUs, UKCA CE, UKCA CE, cuRUs, UKCA CE, cuRUs, UKCA CE, cuRUs, UKCA Housing design C C C C K K K
PTC-Thermistor-Relay Type MSR220KA
PTC-relay for the application as a protection device against inadmissible heating up at electrical equipment in areas with explosive gases (zones 1 and 2) and areas with combustible dust (21 and 22), e.g. for direct temperature-monitoring of explosion-proof motors EEx e and EEx d. Vertically arranged terminals. Each terminal remains accessible even if all others are already occupied.Changes from T222471 to T228130: Version with spring terminals RoHS/REACH compliantChanges from T222476 to T228138: Version with spring terminals RoHS/REACH compliantChanges from T222475 to T228134: Version with spring terminals RoHS/REACH compliantChanges from T222473 to T228133: Version with spring terminals RoHS/REACH compliantFurther information can be found in our customer information: "New terminals for K-type devices"FeaturesATEX approval according to directive 2014/34/EUSIL 1 according to IEC 61508PL c according to ISO 138491 PTC-resistor (thermistor) set, each 3 or 6 PTC-sensorsshort-circuit monitoring of sensor-circuitoutput-relay with 1 or 2 change-over contacts (co)electronic reclosing lock (disconnectable)integrated RESET-buttonlink for external resetautomatic reset at voltage recoveryRESET-Button with integrated LEDs for power-ON (green) and ALARM (red)K-housing, vertically arranged terminals housing 22.5 mm wideassembly on DIN-rail or with 2 screws M4 (option)UL Recognized ComponentOption: other supply voltages
Electronic Current-Transformer Type STWA1SEH
The STWA1SEH is used where current flow has to be detected, e.g. to report exceeding of a limit, to switch off a machine or just report the current flow. The STWA1SEH has an integrated electronics with transistor-output. The limit is adjustable 2 - 10 A with a potentiometer. A LED displays the state.adjustable switching point 2-10 Abuilt-in LED displays state of the outputisolated transistor-output max. DC 40 V / 40 mAoutput van be directly connected to a digital input of a PLCintegrated diode for reverse voltage protectionelectrival connection via screwless pluggable terminals2-wire, no supply voltage requiredDIN-rail-mount or with screwsplug-in current transformer (Ø 11 mm)max. overload 100 A continuously, 300 A max. 10 s.
Zero Export Device Type EFR4002IP
Zero Export Device and Energy Flow Relay, optimization of self-consumption of self generated energy.The successor model to our popular EFR4001IP: Relays for energy flow measurement type EFR4002IP monitor the current flow between public power grid and generating plant / consumer. Operation is made comfortably via integrated webserver or directly at the device. Measured values are displayed neatly arranged at device on monitor. When the own power plant generates more power than actually is consumed it often is more economical to consume the excess energy self. This is especially reasonable when the difference is high between the price you pay to the grid provider and the price the provider pays for fed in energy.Many areas suitable for photovoltaics could not be used so far, since only a limited amount of power can be fed in at the grid connection point. In Germany new standards VDE-AR-N 4105:2018-11 allow exceeding this value by up to 66.6% or more installed capacity. The prerequisite for this is that the overbuilt power is consumed and not fed into the grid. In order to still ensure the stability of the system, this can be monitored with EFR4002IP. The same applies to zero export, when no energy at all may be fed into the grid. In this case, the device can be used as an energy flow direction sensor (EnFluRi). The EFR4002IP has been optimized for these functions.Data exchange with PPC (Power Plant Controller) possible.Functions:Switching of up to 3 consumers: the largest consumer, ranked 1-2-3 or combination of 3 consumers (7 levels)Switch on and off points. At which energy flow consumers are switched on and off againSwitch on and off delay of consumers, minimum on time.Control of heat pumps (SG-ready), battery chargers, invertersFor the use of Rogowski coils, please have a look at our EFR4002IPRNEW:Can be used for medium-voltage applications Connection of earthed medium-voltage transformers and series connected measuring devicesFor the German regulation "NELEV" and "EAAV"Suitable current transformers:Current transormers scaleable up to 2.400 A, secondary 1 A or 5 A (for Pav,e min. class 1) for example ZIEHL Type AS or WSCompact CTM7, 64/1 A, Kl. 1, 0,5 VA
Temperature-Relay Type TR250
The Pt100 thermostat TR250 monitors up to 3 sensors Pt100 (RTD), Pt1000, KTY83 KTY84 or thermistors (PTC) at the same time. Different types of sensors, e.g. Pt 100 and PTC can be monitored simultaneously.The unit is especially suitable for monitoring motors, generators and transformers.An other application is the use as a 2- or 3-step-controller with additional monitoring of over- or under-temperature. monitoring of differences in temperatures of 2 sensors or temperature controller for heat pumps. FunctionMeasuring an dmonitoring range -199...+850 °CResolution 0.1 °C for measuring range –19.9...99.9 selectable3 relay-outputs K1 to K3 with change-over-contactsUniversal power-supply AC/DC 24-240 VEasy settingStoring of values of MIN- and MAX temperatureAlarm counter for 3x99 alarms with display of sensor and elapsed timeCode-lock against manipulation of settingsReplacement for Elbag/Joppich TS-023 Sensor inputs: Pt 100 (RTD) or Pt 1000, 2- or 3-wire-connection, KTY83, KTY84Thermistors (PTC) each 1...6 in seriesMonitoring of short-circuit and breakDisplays:3 digit 7 segment display for temperature and programming3 LEDs for sensors, for alarms/relaysdisplay °C or °F selectable, resolution 0.1 °CSwitching functions:3 relayswarmest/coldest sensor switches relay3 LEDs for alarm/relayprogrammable for every relay:hysteresisautoreset or electronic reclosing lockdelay time for switching and switching backoperating- or closed current-modecyclic check of functionmonitoring of difference in temperature6 preset programs:Motor /generator 3x Pt 100transformer with 3x Pt 100transformer with 2x PTC and 1x Pt 100transformer with 2x PTC / 3x PTC3 x 1 alarm per sensorAccessory: Front mounting kit type ER4Alternative: Temperature relay Type TR640IP
Electronic Current-Transformer Type STWA1SH
The STWA1SH is used where current flow has to be detected, with the exact value of the current either known from the power consumption of the connected consumer or does not matter for the evaluation.The STWA1SH has an integrated electronics with transistor-output. isolated transistor-output max. DC 40 V / 40 mAoutput van be directly connected to a digital input of a PLCintegrated diode for reverse voltage protectionelectrical connection via screwless pluggable terminals2- wire, no supply voltage requiredDIN-rail-mount or with screwsplug-in current transformer (Ø 11 mm)max. overload 100 A continuously, 300 A max. 10 s
AC-Electronic Current Transformer Type STWA1S
The STWA1S has an integrated electronic with transistor-output. The switching point is 2 A. Above app. 2 A the output transistor is switched on (LOW), below app. 1.5 A it is off (HIGH). The conductor is simply pushed through the transformer.Multiple loops reduce the switching point correspondingly, for instance to 0.5 A with four loops. A supply voltage is not required.ApplicationThe STWA1S is used where current flow is to be detected, with the exact value of the current either known from the power consumption of the connected consumer or does not matter for the evaluation.For simultaneous evaluation of the current flow in several conductors the STWA1S device can be connected in series (AND circuit, pay attention to the voltage drop) or in parallel (OR circuit, pay attention to the leak current).isolated transistor-output max. DC 40 V/40 mAoutput can be directly connected to the digital input of a PLCintegrated diode for reverse voltage protection2-wire-connection, 1 mno supply voltage requiredtransformer and electronic unit enapsulated in a climate-proof housingplug-in current transformer (Ø 11 mm)max. overload 100 A continously, 300 A / 10 s
Electronic Current-Transducer Type STWA1AH
The STWA1AH is a current-transducer for AC currents 0...15 A. With the STWA1AH the value of a current can be evaluated very economically and space-saving.The output-signal 0...20 mA can be evaluated or displayed with components with analog inputs, e.g. PLCs or ZIEHL TR 210, STW 1000 V2 or MINIPAN®.For currents 0...20 A and 0....100 A, please choose our Electronic Current-Transducer Type STWA2AHcurrent-proportional analog output DC 0...20 mA = AC 0...15 A (insulated)electrical connection via screw less pluggable terminalsno supply voltage requiredDIN-rail-mount or with screwsplug-in current transformer (Ø 11 mm)max. overload 100 A continuously, 300 A max. 10 s
Phase-Asymmetry Relay Type PS2DK
Phase asymmetry relays PS2DK are used for the protection of electric motors against asymmetries in the 3-phase mains without neutral and for monitoring the phase-sequence.The switching-point is adjustable and can be adapted to the situation in the mains. If a motor, running with 2 phases, creates the 3rd phase, the sensitivity can be increased. With mains with high harmonics it can be necessary to reduce the sensitivity.When the sensitivity is reduced to minimum (25% = potentiometer turned fully right) , the device works as a phase-sequence relay. It trips only at wrong phasesequence or missing phase.If there is a wrong phase-sequence when switching on the device, the relay does not pick up.Monitoring of phase-asymmetryMonitoring of phase-sequenceAdjustable sensitivity 5…25 %Output-relay with 2 change-over contactsSwitching delay adjustable 0,1 … 5 sLED for display state of operationChanges from P222505 to P227105: Version with spring terminals RoHS/REACH compliantFurther information can be found in our customer information: "New terminals for K-type devices"
Pt 100-Temperature relays Type TR111V
Temperature-Relays TR111V can be used as limit-switches or 2-point controllers with high repeat accuracy. 3 measuring-ranges, adjustable hysteresis and switching delay and the choice between operating- and closed-current principle of the relay make it a very universal device. Application: Protection from over-temperature in processes, plants and machines. Monitoring of temperatures in bearings. Controlling of temperatures in processes and plants.Overview of FunctionsMeasuring input 1x Pt 100 (RTD)/ 3-wireMeasuring ranges selectable:– -10...+40/ 0...100/ 0...200 °C– 0...100/ 0...200/ 200...300/ 300...400 °C1 limit adjustable 0...100 %switching delay adjustable 0,1...10 sOutput-relay 1 changeover-contact (co)Operating- or closed-current-mode selectable with bridgeSwitching off at sensor-shortcircuit or breakLEDs for display state of relayHousing for mounting in switchgear cabinets or fuseboxes, 35 mm wideMounting heigt 55 mmUniversal supply-voltage AC/DC 24-240 V
Current-Transformer Type STWA1H
The STWA1H current transformer is made to match the current-relays for recognition of AC-current and for controls for deducting plants type STW. Above app. 2 A the built-in LED lights and indicates a current. A current-relay type STW or a LED can be connected to the terminals.The STWA1H has been designed for mounting in a switchgear cabinet. The housing can be fixed on a DIN-rail or with 2 screws. The maximum diameter of the monitored line is 11 mm. The current is only limited by the diameter that can be lead through the transformer. The electrical connection is made via screwless pluggable terminals.connection to current-relays type STWindication with LED from app. 2 Aindication of shortest current-pulsesBuilt-in resistor to protect LEDno supply-voltage requiredelectrical connection via screwless pluggable terminalsplug-in current transformer (Ø 11 mm)
Control for suction plants Type STW84V
The basic function of the device is to detect whether a current is flowing in the supply line of one of several woodworking machines. If a current flow is detected, the device opens a valve on the machine's suction channel. At the same time, the extraction system is switched on. When a machine is switched off, the device closes the associated valve with a delay. If the last machine is switched off, the extraction system also stops after a delay.The current relay STW84V monitors up to 8 alternating current sets on current flow yes/no. The inputs can analyse signals of current transformers type STWA1(H) or of potential-free contacts.For controlling of great dedusting plants several relays can be combined.ApplicationsControlling of dedusting plants in the timber and plastic processing industry according to the technical rules for dangerous materials TRGS 553. The central suction is switched on, as soon as any machine is put into operation. According slide-valves in the suction ducts of the individual machines are opened. In addition, cleaning of a filter (vibration) and a cellular wheel/discharge can be controlled, an external cleaning (with pressurized air) can be started or exceeding of max. volume flow can be reported. The analog output 0...10 V can control a frequency-converter at the motor of the ventilator and thus optimize performance and save energy.Monitoring of 8 machines (STWA1(H) or contact)input for "open all slide-valves"8 relays (with change-over contacts) for slide-valves1 relay for control ventilator1 relay for filter-cleaning1 relay for control of cellular wheel/discharge or report exceeding max. volume-flowanalog output for control of frequency-converter and combination of more STW84Vterminals pluggableuniversal supply voltage AC/DC 24-270 V
PTC-Resistor-Relay Type MSR220K
ZIEHL PTC-resistor relays protect motors, transformers, machines and equipment against thermal overload. With ZIEHL PTC Sensors MINIKA ® applied they offer best solutions for nominal response temperatures 60°C…180°C.ZIEHL PTC-resistor relays are designed for PTC-sensors according to DIN 44081 and DIN 44082. Therefor sensor and relays are exchangeable. PTC-resistor sensors are suitable for the installation into windings of electrical machines, bearings and transformers as well as to monitor the temperature of liquid media, airflow and gases.Used in conjunction, they provide a effectively and reliable protection in case ofblocking rotors, heavy starts, countercurrent operationundervoltage and phase failureincreased ambient temperature and hindered coolingReplaces the following items: MS220K: T221741, T221743, T221761, T221765 and T221749MSR220K: T221771 and T221775Functional overview1 PTC-resistor set with up to 6 PTC-sensors (250O), or bimetal contacts in seriesoutput relay with 1 or 2 change-over contact (co)operating status display with LEDK-Housing, vertical terminal orderwidth 22.7 mmsnap mounting on 35 mm standard DIN rail or screw mountingelectronic reclosing lock (disconnectable)integrated RESET-buttonlink for external RESETautomatic RESET at voltage recoveryLEDs for power ON (green) and ALARM (red) in reset-buttonUL recognized componentOption: other supply voltagesVersion with spring terminals RoHS/REACH compliantFurther information can be found in our customer information: “New terminals for K-type devices”
Universal Measuring Transducer Type MU2000K
Measuring transducers MU2000K can measure DC- an AC-voltages up to 600 V and DC- and AC-currents 0-1/5 A.Preset measuring ranges can be selected. More measuring ranges (zero and full-scale) can be easily scaled. The output signals DC 0/2-10 V and 0/4-20 mA are insulated from measuring input and supply voltage. With its universal supply voltage AC/DC 24-240 V the measuring transducer can be connected to all common supply voltages.The MU2000K e.g. is suitable for measuring DC voltages and charging currents at batteries or for measuring AC voltages and currents in plants for own generation of energy.Changes from T236053 to T236056: Version with spring terminals RoHS/REACH compliantFurther information can be found in our customer information: "New terminals for K-type devices"Overview of functionsOutput signal 0-20mA and 0-10V or 4-20mA and 2-10VRated Supply Voltage AC/DC 24-240VInsulation between inputs, outputs and supply voltage (3-way isolator)InputsAC/DC 0 … 600 V (preset values: 0…30 V / 80…120 V / 0…150 V / 0…300 V / 0…600 V)AC/DC 0 … 5 A (preset values: 0…1 A / 0…5 A)In measuring ranges for AC also DC-signals can be measured. Negative signals will be measured as positive signals.Zeros and Full Scales for more measuring-ranges can be freely selected by the user. Discover the difference between our MU series! Type MU1000K MU1001K MU2000K Measuring values 0/4…20 mA, 0–10 V, PT100 0…±60/150/300 mV DC, 0…±10/300 V DC 0…30/150/300/600 V AC/DC, 0…1/5 A AC/DC Output signals 0/4…20 mA, 0/2–10 V 0/4…20 mA, 0/2–10 V 0/4…20 mA, 0/2–10 V Scaling adjustment 2 buttons: programs or signal calibration 2 buttons: programs or signal calibration 2 buttons: programs or signal calibration Display LEDs 1× Power, 3× Setting 1× Power, 3× Setting 1× Power, 3× Setting Test voltage between potentials 3540 V 3540 V 3540 V Input resolution 14 bit 14 bit 14 bit Output resolution 11.6 bit: < 3.1 mV; < 6.1 µA 11.6 bit: < 3.1 mV; < 6.1 µA 11.6 bit: < 3.1 mV; < 6.1 µA Housing type K K K Measuring time Voltage/current: < 20 ms;Temperature: < 350 ms < 20 ms Adjustable measurement time Main areas of application Signal isolation Signal conversion, voltage measurement Voltage and current measurement
Level Relay Type NS20K
Level-Relays NS20K for conductive liquids can be used as monitors for 1 Level and for controlling a level between 2 electrodes.3 electrodes for MIN/MAXcontrol2 electrodes (E2 open) as level monitorSensitivity adjustable 5 kO…250 kOLED for state of relayFunction of relay reversible (picks up or releases at top electrode)Switching-delay adjustable 0,1…10 sHousing 35 mm wide, mounting height 55 mmUniversal supply-voltage AC/DC 24-240 VChanges from V223445 to V229001: Version with spring terminals RoHS/REACH compliantFurther information can be found in our customer information: "New terminals for K-type devices"Application level monitorProtection from running dry or overflow, monitoring pumps for leaks, detection of leaks. Application Min/MaxControlling a level between minimum (electrode E2) and maximum (E3). As long as E3 is dry, a magnetic valve is opended (or a pump is running) and liquid is influencing. As soon as maximum (E3) is reached, the NS20K closes the valve. When the level falls below E2, the cycle start new. In reverse also discharging of a container can be controlled.
