Electrical switch - has sealing ring assembly fitted to spindle of actuator to seal housing

摘要

The electrical switch (1) has a projecting spindle (2) that is rotated through an arc to change the switch state from on to off. The spindle passes through a front plate (3) that has a centre opening that receives a sealing assembly. The assembly has a main disc (4) with an outer section (9) forming a groove that locates against a projection (5) on the housing. A sealing ring of elastic material (12) has slots to fit over projecting claws (14) to latch the ring to position and to provide a face seal (18). Internally the seal is shaped (15) to engage with a slot in the spindle (16). ADVANTAGE - Seals housing against entry of moisture and dirt.