Overload Relay Auto Reset

Thermal trip class 10 overload protection trips within 10 seconds when carrying a current of 720.

Overload relay auto reset.

The t16 thermal overload relays are economic electromechanical protection devices for the main circuit. An adjustable overload relay could be improperly set up causing it to trip with a normal surge or temporary overload. The sensing device of a bimetal strip made of two metals. Also the overload relay itself could fail.

With the manual auto reset selection button we can choose between manual and automatic reset of these relays after a trip. A reset button is present over the overload relay to reset the overload relay after a trip and clearance of fault. Automatic reset thermal overload relays. When set in the h or hand position the reset button must be pressed manually to reset the overload relay after a tripping event.

Visible trip indication and test function standard on all c3controls series 320 overload relays. If the device is set to auto a remote reset of olr is possible. The motor will stop if the overload relay trips out and will not restart automatically regardless of the position of any control switch until the overload relay is reset. Resets must occur only after all hazards have been cleared and a manual reset is basically safer.

In the case of motors that are automatically controlled the overload relay may be set to hand or auto reset as the situation requires. Offer reliable protection for motors in the event of overload or phase failure. View datasheet thermal overload relays t16 from abb electrification products. A manual reset is used for machines that people can enter and for emergency stop circuits and an auto reset is used for machines that people cannot enter.

Auto resets can be used for guards through which people cannot enter. Manual reset test or auto automatic reset test it is possible to simulate the test and the trip functions by pressing the reset button. How to reset the overload relay in a control panel by engineer m anis 14 august 2017. The overload relay will sense the increased current from the heat and will trip to protect the motor.