The Contactron 4-in-1 solid-state reversing contactor combines four functions in one narrow package. Designed for threephase ac motors up to 4 kW/5 hp in size, the 22.5-mm-wide Contactron provides forward, reverse, overload protection, and redundant emergency stop functions. Its small size reduces DIN-rail space size by 75%. Life expectancy is said to be 10 times longer than traditional electromechanical contactors. Integrated input/output surge protection circuits reduce system downtime, and 16 separate motor overload settings reduce inventory requirements.