Description
The Copeland 940-0150-51 Current Relay is an electromagnetic switching element that monitors compressor current draw and responds to load changes by opening or closing internal contacts. It operates by using coil-induced magnetic action that reacts to motor inrush conditions, allowing controlled involvement of compressor circuits during start and run phases. Positioned in compressor control arrangements, it interfaces with power lines and motor windings to regulate switching response based on electrical demand in HVAC systems. Its current-sensitive action contributes to accurate start sequencing, controlled motor activation, and stable electrical activity during the refrigeration cycle operation.
