Cutler-Hammer
The E22B20 is a type of overload relay manufactured by the Eaton Cutler-Hammer company. This device is a thermal overload device designed to provide motor overload protection, usually in the form of an overload trip or breaker trip. It is designed to sense over-current conditions in a single, two, three or four pole (circuit) application, and is UL recognized, CE certified, and CSA approved. The E22B20 thermal overload relay has a variety of available accessories, such as trip units, contactors, auxiliary contacts, power supplies and remote programming terminals.