Mechanical pump switch

Staff -- Control Engineering, 3/1/2006

Double-float master pump switch is a mechanically activated, wide-angle device that provides automatic control of 120- or 240-V pumps up to 13 FLA, 78 LRA in non-potable and sewage applications. It has an adjustable pumping range of 10-56 in. with an increased pumping range of up to 6 ft available. Switch consists of two mechanical floats and a splice tube. Splice tube contains a holding relay that lets floats function in series. Holding relay eliminates pump chatter in turbulent conditions, allowing the switch to operate relay control panels for larger applications. www.sjerhombus.com SJE-Rhombus Controls