Brand: Ziehl
Product Code: TR250
Availability: 3
Price: £321.00

Temperature Relay Model TR250, 3 Sensors Pt 100 (RTD), Pt 1000, PTC or KTY, 3 Limits, alarm counter and preset programs for use with PTC thermistors only Universal power-supply AC/DC 24-240 V (Ordering Code T224190)

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.

• Measuring and monitoring 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


Operating Manual