Presair - Magictrol Air Switch, DPDT, 21A, Black Cam, Threaded 9/16, MTK211A

PresAirTrol Magictrol DPDT air switch MTK211A is a 3-function air switch with a BLACK colored internal cam and 1/8"" THREADED center spout air hose connection, with lock nut ring. 1HP at 125 VAC, or 2HP at 250 VAC. This sequential or sequencing air switch is a mechanical stepper switch that can be used to control up to 3 devices. Each time the air button is pushed, a stepping cam is rotated three positions, with switch 2 being a Dummy Switch. Used on an air actuated spa control system. Magictrol air switches are recommended for air hose runs of less than 15 ft, or under 4.5 meters. 3 sets of 3 wire terminal connections on this general hot tub air switch - common (always used), NO normally open (usually used) and NC normally closed (not normally used). Connects with 1/8"" air hose, sold separately.