Air switch SC-40-2-B-B-2-A 3A 240V SC-40 can be used together ... machines, medical equipment etc. As a remote control switch, it is small enough to fix in the control ... first pushing on air button actuates the air switch, and the air switch keep actuating when air button is released. ... breaker,signal lamp and push button,panel meter,proximity switch,AC drives,soft starter,floor socket,power distribution ...