Zonefirst® Modulating By-Pass Zone Damper, Automatic, Series: RDM, 10 in Dia, Round, 24 VAC, 0.17 A, 9 sec Powered Timing, Circular Blade, MDM Power Open, Power Close Motor, Screw Terminal, 0 to 150 deg F, Steel, Galvanized, Domestic.
3 wires, 24V modulating power open/ power close zone damperDirect driver linkage250 in oz5 to 95 percent non-condensing humidityMaximum 2 in WC duct pressure-20 to 175 deg F storage
3 wires, 24V modulating power open/ power close zone damper