Incudes housing with 1.25cm (1/2 inch) conduit nipple, LED function indicator, and 3-way switch. You can manually switch the fan "on-off", or, set it on "automatic" and let AS310e control the fan.
One SPST relay, contacts rated 20 amp; UL listed for one 120Vac motor up to 1HP, or, one 240Vac motor up to 2HP; coil input 24 Vdc 32mA, 24Vac 75mA, or 120Vac 42mA