The CSC and CSS Series of current pressure switches detect low current loads running through a cable or wire. The CSC model has a split core and suits retrofit installations. Because of its split core design, it clamps easily onto existing power cables or wires. The CSS model has a solid core with a wide orifice for easy pass-through of the conductor (wire or cable). It suits new installations. Since excitation is magnetically induced from the cable or wire, these units are completely self-powered.
They come with industry standard 135 or 200 amp output; and low, fixed, or user-adjustable setpoints, which activate when the fault current is reached. The CSS Series comes in three models, which are available with setpoints as low as 0.25 amp. The CSC Series comes in five models, which are available with setpoints as low as 0.15 amp. Switch load capacity is 1 amp at 30 Vac/Vdc maximum.
They suit HVAC/R, industrial, and lighting applications that use electric motors to drive fans, pumps, and blowers; and for sensing the status of heating coils and lighting.
Setra Systems, Inc.
www.sertra.com
Filed Under: Switches, ELECTRONICS • ELECTRICAL