... type air switch, is suitable for use in ac 50HZ 60HZ, voltage 1140 v, current to 20A, 50A, 63A, 80A, 100A, 125A ... action of the auxiliary contact, be in usually guarantee isolating switch under no-load condition on. On, breaking isolation power; Under ... as contactor contact welding fault, etc.), have certain breaking capacity.Main technical parameters:1 rated voltage Ue 1140 vRated working current ...