Rheem-Ruud 42-21279-04 4-PST N/O Sequencing Relay 24V

The Rheem-Ruud 42-21279-04 Sequencing Relay is an essential components that control the sequence of operations in HVAC systems. This relay has a 4-pole, 4PST configuration and has typically open contacts, with a supply voltage of 24V AC. It is equipped with a double flush mount plate with one mounting hole and a tab for its easy installation. The relay uses 1/4” fast connections for wiring that is both safe and cost effective. This relay helps to optimise the operation of the system and increases operational efficiency as fans, heating elements, and compressors are switched on in the right sequence. This results in improved and efficient functioning of the HVAC system thus reducing the chances of operational mishaps and increasing equipment’s durability.