Description
The Schneider Electric (Square D) B7.70 Thermal Unit is a melting alloy overload protection element designed to monitor motor current, and respond when preset limits are exceeded. It operates within a 4.936.27A full load range allowing calibrated response to electrical load variations, and preventing excessive current flow during abnormal conditions. The unit is built for plug-in mounting within compatible starter assemblies and ensures precise thermal response through its internal sensing structure. Installed in motor control starters and compressor circuits in HVAC systems it operates as a protection component that helps maintain controlled electrical operation and system stability.
