In order to function properly, a thermal overload relay has two interfaces, the first of which is usually accessible while the other is normally shut. When these contacts come together, they ...

The control unit functions as the adjustable overload relay assembly, which is different from the fixed style of thermal overload unit found in a NEMA-type magnetic motor starter. IEC devices are ...

Inspired by input from panel builders, system integrators and end users around the world, Rockwell Automation engineers developed the new Allen-Bradley E300 electronic overload relay.