Profile: Springer Controls Co., Inc. offers electrical control products. Our product line includes electrical contactors & starters, pilot, signaling & power switching devices, temperature controllers and terminal blocks. Our Model GMK motor protection switch is a three pole horsepower rated switch which combines motor thermal overload protection and magnetic short circuit protection in one compact unit. The GMK is ideal for applications requiring multi-motor operation. The GMK motor protection switch is featured with motor protection circuit breaker up to 32 amps, manual operation using start-stop push buttons, all the poles open for both thermal and magnetic trips. We carry a complete line of UL approved, CSA listed, disconnect switches from 16A to 125A. We also offers larger disconnect switches rated up to 630 amps (consult factory for part number and pricing of switches greater than 125 amps.). Our NT series consists of the NT-935 and the NT-538 temperature controller units. The NT Series is a temperature control system, up to 8 channels for electric motors and generators. The NT series has the ability to add modular components such as digital or analog converters. The units can also be manufactured with the same features built-in to the base unit itself.