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

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) or analogue outputs 0/2-10 V or 0/4-20 mA.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

Relays for energy flow EFR4001IP 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 is actually consumed, rather than selling the excess energy to the grid provider, self-consumption is often more economical. 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 allow exceeding this value by up to 2/3 (66.6%) 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 must be monitored. 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 EFR4001IP has been optimized for these functions. Zero-Export-Device or limiter:Switching off the power generation system or parts of it if the permissible feed-in power is exceeded with relay K3Switching on consumers or reducing generators before it comes to that by means of regulating with an analogue output or switching loads with relays K1 and K2Energy flow direction sensor (EnFluRi sensor) and feed-in limitation < 0.1sSuitable current transformers:Usual current transformers up to 2,400 A, secondary 1 A or 5 A (for Pav,e min. class 1), e.g. ZIEHL type AS or WSCompact CTM7 CTM7, 64/1 A, Kl. 1, 0,5 VASplit core KBR18S KBR18S, 60/1 A, Kl. 3, 0,4 VA (not for Pav,e) Accessory:Front Mounting Kit ER8 for mounting in control panels or doorsNEW: Zero Export Device Typ EFR4002IPYou want to use 3 inputs for customary current transformers with secondary 1 or 5 A?You want to use medium-voltage applications and connect earthed medium-voltage transformers and series connected measuring devices?You want to comply with the German regulation "NELEV" and "EAAV"?Then have a look at our new EFR4002IP!

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.

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

Relay for Energy Flow, optimization of self-consumption of self generated energy. Zero Export Device.Relays for energy flow 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 exchage with PGS (Power generating system) 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, invertersNEW: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 VAAccessory:Front Mounting Kit ER8 for mounting in control panels or doors

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).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

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