the relay has different mechanism and termperaturecompensation and can be pluged in GMC series ac contactor.

GTH-85	8.5	7.0-10.0
	11	9.0-13.0
	15	12.0-18.0
	19	16.0-22.0
	22	18.0-26.0
	30	24.0-36.0
	34	28.0-40.0
	42	34.0-50.0
	55	45.0-65.0
	65	54.0-75.0
	74	63.0-85.0

This series of thermal overload relay can be used in the circuit of 50/60Hz, rated insulation voltage 660V, rated current 0.1-85A for protecting the phase break when the electric motor is overload.The relay has different mechanism and temperature compensation & can be pluged in GMC series AC contactor. The products comply with IEC 60947-5.