Functional Devices rib023p Enclosed Relay 20A 3PST 208-277V

Product Description

The FUNCTIONAL DEVICES rib023p is a 20-amp, 3-pole single-throw (3PST) enclosed relay rated for 208 to 277 volts AC. It is designed for switching heavy electrical loads in commercial and industrial control systems. The enclosed housing protects internal contacts from dust and environmental contaminants common in mechanical rooms and equipment installations. Licensed electricians and building automation technicians are the primary installers of this type of relay in HVAC and electrical distribution applications.

This relay is suited for commercial HVAC systems, lighting control panels, and energy management installations where multi-pole switching is required. The 3PST configuration allows simultaneous control of three separate circuits from a single control signal, making it a practical choice for fan arrays, multi-circuit lighting banks, and motor control applications in light commercial and industrial settings.

Key Features

• 20-amp contact rating supports high-load switching applications
• 3PST configuration switches three circuits simultaneously from one control signal
• Rated for 208 to 277 volts AC, compatible with standard commercial single-phase and three-phase supply voltages
• Enclosed housing shields contacts from dust and debris in mechanical environments

Compatibility

Designed as an OEM-style enclosed relay for use in commercial HVAC, lighting, and building automation control panels requiring 3PST switching at 208 to 277 volts AC.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out all circuits before handling or wiring the relay. Verify that the load current does not exceed the 20-amp contact rating. Secure the relay in its mounting location before making electrical connections to prevent movement and terminal stress.

Technical Specifications

• Contact Configuration: 3PST
• Contact Rating: 20 amps
• Coil Voltage: 208-277 volts AC
• Enclosure Type: Enclosed

Standard Information

• Brand: FUNCTIONAL DEVICES
• Manufacturer Part Number: rib023p