METZ CONNECT TMR-12 Motor Monitoring Relay, PTC Thermistor, 24-240 V AC/DC, 2 CO, DIN Rail 1103150522

The METZ CONNECT TMR-12 motor monitoring relay provides reliable thermal protection for electric motors by evaluating PTC thermistor sensors. Its wide 24-240 V AC/DC supply voltage and two changeover contacts make it a versatile choice for industrial control systems.

Advantages

This relay offers fast response times under 100 ms, automatic reset after fault clearance, and clear LED status indication. The compact 22.5 mm DIN rail housing saves panel space, while screw terminals ensure secure wiring.

Suitable for

• Protection of motors with PTC thermistors in windings
• Industrial machinery and conveyor systems
• Pump and fan monitoring
• HVAC equipment
• Control panels requiring DIN rail mounting

Key specifications

• Sensor type: PTC thermistor (DIN 44081/44082)
• Rated supply voltage: 24-240 V AC/DC, 50/60 Hz
• Output: 2 changeover contacts (AgNi), 5 A
• Response time: < 100 ms
• Reset: automatic via supply interruption
• Mounting: DIN rail TS35, width 22.5 mm
• Operating temperature: -25 °C to +55 °C
• Protection: IP40 housing, IP20 terminals

Recommendations

For reliable motor protection in demanding industrial environments, the TMR-12 combines robust performance with easy installation. Verify PTC sensor compatibility and supply voltage before commissioning.