Temperature-Relay Type TR250
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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.
Function
- Measuring an dmonitoring range -199...+850 °C
- Resolution 0.1 °C for measuring range –19.9...99.9 selectable
- 3 relay-outputs K1 to K3 with change-over-contacts
- Universal power-supply AC/DC 24-240 V
- Easy setting
- Storing of values of MIN- and MAX temperature
- Alarm counter for 3x99 alarms with display of sensor and elapsed time
- Code-lock against manipulation of settings
- Replacement for Elbag/Joppich TS-02
3 Sensor inputs:
- Pt 100 (RTD) or Pt 1000, 2- or 3-wire-connection, KTY83, KTY84
- Thermistors (PTC) each 1...6 in series
- Monitoring of short-circuit and break
Displays:
- 3 digit 7 segment display for temperature and programming
- 3 LEDs for sensors, for alarms/relays
- display °C or °F selectable, resolution 0.1 °C
Switching functions:
- 3 relays
- warmest/coldest sensor switches relay
- 3 LEDs for alarm/relay
- programmable for every relay:
- hysteresis
- autoreset or electronic reclosing lock
- delay time for switching and switching back
- operating- or closed current-mode
- cyclic check of function
- monitoring of difference in temperature
6 preset programs:
- Motor /generator 3x Pt 100
- transformer with 3x Pt 100
- transformer with 2x PTC and 1x Pt 100
- transformer with 2x PTC / 3x PTC
- 3 x 1 alarm per sensor
- Accessory: Front mounting kit type ER4
- Alternative: Temperature relay Type TR640IP
| Applications: | Protection of transformers, Protection of motors |
|---|---|
| Approval: | UL/CSA, EU / UKCA-Declaration of Conformity, UKCA |
| Design: | Mount in switchgear cabinet, Mount in circuit breaker box |
| Extras: | 2 sensor inputs, 3 or more sensor inputs, Reclosing lock, Temperature relays |
| Input/ Measured parameter: | Measuring input other temperature sensors, PTC, Pt 100 |
| Outputs: | Outputs/Relays |
| Product group: | Temperature Measurement |
| Supply voltage: | AC/DC 24-240 V |
Technical specifications
CAD Data
Certificates
FAQ / Product videos
Accessories
You found a device in that meets your requirements and you want to install it in a control panel or in the door of a control cabinet?With the installation frame of the ER series, this is possible for all ZIEHL devices in housings V4, V6 and V8 (width 70/105/140 mm).Enclosed by a high-quality frame made of anodized aluminum, all displays can be read outside the control cabinet. Switches, buttons and joystick can be operated.
Alternative
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 Discover the difference between our TR640IP, TR660IP and UR840IP! Type TR640IP TR660IP UR840IP Sensors PTC, Pt100, Pt1000 PTC, Pt100, Pt1000 Pt100, Pt1000, KTY83, KTY84, thermocouples, 0-10V, 0/4-20mA Sensor inputs 6 6 8 Digital inputs - - 4 Outputs 4x alarm relays 6x alarm relays, 2x analog (only T224370) 4x alarm relays, 1x analog Alarm types Limit value, differential, rate of change of temperature, 2 out of x Limit value, differential, rate of change of temperature, 2 out of x Sensor-specific limit values, differential, average, min/max, 2 out of x Virtual sensors - - 8 Display Display, LED Display, LED Display, LED Network / Communication Ethernet RS485 (only T224371), Ethernet RS485, Ethernet Other functions On/off delay, simulation, cyclic relay test, 2 digital inputs On/off delay, simulation, cyclic relay test, 2 digital inputs On/off delay, simulation, expansion with URB or STWA4MH Housing V6 V8 V8
