Small , Elegant and Powerful Relay Each is 2 ch Pass Through, Switch Over Relays 5A, Green operated supplied by 24VAC/25mA from bus, For Any Motor 2 direction operation like: Curtain, Drape, Screens, Gates, Lift, Escalator, Plasma Lifts, Sky Lights, Pool covers etc. It is passes through relay that enables you to control all type of motors that operated by dry contact, 12 VDC/AC, 24VDC/AC, 110VAC,220V AC and more with 5Amp relay , Can be used in any location that require energy saving, intelligent control such as Bed rooms, Living rooms and Offices.