Power failure during suspension is guarded against by the expansion device being mechanically held closed by the linkage which has to be electrically tripped. ... The contacts are rated at 5 A and are intended for the frequent control of main contactors in the motor circuit. ... Complete with carrying handle, the unit weighs 8 Ib. Dimensions: 61 in. by 7i in. by 8J in. ... Earth-leakage circuit-breaker AN unfortunate error occurred in the wiring diagram included in an advertisement for the AEIanbsp;...