Sprecher + Schuh non-combination magnetic motor starters are intended to eliminate the purchase and assembly of a separate contactor, overload relay and associated wiring. When purchased with an enclosure, the starters are mounted and ready to install on receipt.
At the heart of all magnetic starters is the Sprecher + Schuh CAT7 and CAT9 line of motor starters. These starters are compact and offer intermediate sizes to better match specific motor requirements. This equates to generous wiring space and less wasted horsepower capacity.
Magnetic starters are equipped with Sprecher + Schuh's CEP7 solid state overload relay as a standard selection. Unlike traditional overload relays that indirectly sense motor current through heater elements, CEP7 solid state overload relays measure motor current directly through integrated current transformers and on-board electronics. The electronics provide numerous advantages over electromechanical relays.