Description
The IDEC Relays RH3B-UAC120V Power Relay is a plug-in electromagnetic switching unit with a 120 VAC coil and 3PDT contact arrangement rated for 10A current handling. It operates by energizing an internal coil that generates a magnetic field, shifting multiple contact sets between open and closed states for circuit routing. The socket-mounted structure allows direct integration into control panels, where it switches auxiliary loads, fan circuits, compressor signals, and interlock paths within HVAC systems such as air handling units and control cabinets. It enhances signal isolation, strengthens load handling capability, and provides a consistent electrical transfer across multiple control paths during continuous operational sequencing.
