Description
The IDEC Relays RH4B-UAC120V 4PDT Power Relay switches multiple independent circuits from a single coil activation signal within electrical control systems. When the coil receives 120 VAC, all four poles shift position together, opening or closing their respective circuits in a single switching event, allowing one control signal to manage several load circuits without additional relay stages. Wired into the control panels of air handling units, chiller systems, and building automation equipment, it integrates directly into HVAC systems through standard DIN rail or socket-mount terminations, accommodating multi-circuit switching without expanding panel footprints.
