As a heavy-duty HVAC sequencer relay

which prevents rapid cycling and reduces stress on the electrical system

The 2781-A uses a Type C Round Shaft

excessive surface oxidation

Copeland 977-0431-03 Receiver Tank Assembly 320788-703 As a heavy-duty HVAC sequencerFor contractors managing high demand commercial refrigeration systems, the Copeland 977 0431 03 Receiver Tank Assembly is the industry standard for maintaining a consistent liquid seal in the high side line. This high performance liquid receiver tank serves as a critical reservoir, ensuring that your expansion device receives a steady flow of subcooled liquid even during load fluctuations or seasonal shifts in ambient temperature. Designed for rugged