FFD-SM110 thermal protection relay instructions

一、Summary

FFD/SM110-C thermal protection relay is a motor overheating protection relay designed for elevators. When the thermistor in the motor reaches or exceeds the set value, the red ALARM indicator light is on and the safe emergency stop circuit is disconnected, thus playing the role of protecting the elevator motor.

Designed by the latest electronic technology, the FFD /SM110-C has the advantages of small size, stable performance and reliable operation.

二、Dimension and wiring diagram

三、Technical parameter

四、Test method

When the FFD-SM110 relay output contact is open circuit, it should alarm or disconnect the motor power supply state, and ALARM red light at this time.

 Test instructions: after the FFD-SM110 is installed, turn on the power supply ," ALARM" the green indicator light, connect the contacts 3 and 4 terminals ," the ALARM" indicator light from the red light to the green light, this time the function is normal.

五、Installation mode

TH35 rail installation