Ziehl Temperature Monitoring Relay
Product Basic Information:
- Manufacturer / Brand: Ziehl Industrie-Elektronik GmbH + Co KG
- Part Number(s): TR250, T224190
- Alternate Part Number Format: TR-250, T-224190
- Product Family / Series: TR Series
- Country of Origin: Germany
Technical Specifications:
- Power Supply: 24–240 V AC/DC, 50/60 Hz, < 3 W
- Sensor Inputs:
3 inputs for temperature sensors
Compatible with:
- Pt100 / Pt1000 (RTD)
- PTC thermistors (e.g., KTY 83, KTY 84)
- Number of Alarm Outputs: 3 relay outputs for alarms
- Max Torque (terminal): 0.5 Nm (for sensor terminals)
- Mounting Type: DIN rail mount
- Relay Type: Dry contacts, programmable
- Response Delay / Hysteresis Settings: Adjustable
- Reset Function: Manual and remote reset available
- Relay Locking Function: Selectable relay locking (L = locked)
- Test Mode: Test relay function and sensor simulation available
- Temperature Unit: °C
- Operating Temperature Range: (Data not available at this time)
Product Features:
- Monitors up to 3 temperature sensors simultaneously
- Programmable 3-level alarm triggering (Alarm 1, 2, 3)
- Alarm counter and configurable programs
- Visual status indication (LEDs and panel display)
- Manual and remote reset options
- Compact DIN rail mountable blue housing
- Universal power supply compatibility: wide input voltage range
- Certified with CE, cRUus, and RoHS compliance
- Clear function indicators for:
- Sensor error
- Hysteresis
- Exit condition
- Delay setting
- Relay status
- Test and simulation modes
Product Designed Use:
- Designed for temperature monitoring and protection in electrical control panels
- Ideal for applications in:
Industrial automation
Motor protection (thermal overload)
Heating and ventilation systems
Process control panels
- Supports RTD and PTC/KTY thermistor sensors
- Can be used to detect overtemperature conditions and trigger alarms or shutdowns
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