The role of the thermal relay is: when the current through the thermal relay to the motor exceeds th

7.5KW motor, three-phase, rated working current is probably, here is the power factorP=3UI*COS&,

The thermal relay generates heat from the current flowing into the heat element; the bimetal piece w

Function: Mainly used for overload protection of asynchronous motor. His working principle is that a

In the control loop, the normally closed contacts of the thermal relays are usually connected in ser

Thermal relays are mainly used to protect the load from overload. The function of the air switch fun