Description
The IDEC Relays RH3B-ULAC120V 3PDT Indicator is an electromechanical control that is used in HVAC systems to operate multiple circuits at the same time. Its main purpose is to turn on and off three sets of contacts to a 120V control signal to synchronize fans, compressors or other electrical loads. The control panel and interconnections of the coil and contact circuits are according to the wiring requirements. The built-in indicator can be used during operation to ensure reliable circuit switching.
