Diversitech rib2401b Power Control Relay 20A Spdt 24V

Product Description

The DIVERSITECH rib2401b is a power control relay designed for HVAC and building automation applications requiring reliable switching of lighting, fan, and motor loads. It features a SPDT contact configuration rated at 20 amps resistive and accepts coil voltages of 24 or 120 volt AC as well as 24 volt DC at 50 to 60 Hz, making it adaptable to a wide range of low-voltage control circuits. The relay is housed in a NEMA 1 enclosure and carries UL 916/864, CUL, CE, and dual UL listings for both Canada and the United States. It is typically installed by licensed HVAC technicians and electrical contractors in commercial and light commercial control panels.

This relay is suited for residential and commercial HVAC systems, lighting control panels, and building automation equipment where a low-voltage signal must switch a higher-voltage load circuit. The included LED indicator allows technicians to confirm coil energization without additional test equipment. The unit ships with a 16-inch, 600-volt rated wire lead and a 0.50-inch threaded nipple for conduit mounting, supporting clean panel and junction-box installations. A motor rating of 2 HP and a pilot duty rating of 1110 VA extend its use to motor-starting and fire control relay applications.

Key Features

• SPDT contact rated at 20 amps resistive and 16 amps ballast for broad load compatibility
• Dual coil voltage input: 24/120 volt AC or 24 volt DC at 50 to 60 Hz
• NEMA 1 enclosed housing suitable for indoor panel mounting
• UL 916/864, CUL, CE, and Canada/US UL listed — RoHS compliant
• Includes LED coil-status indicator, 16-inch 600-volt wire leads, and 0.50-inch threaded nipple
• 2 HP motor rating and 1110 VA pilot duty rating for motor-start and fire-control circuits
• Operating temperature range of -30 to 140 degrees F for demanding environments

Compatibility

Designed as an OEM-style power control relay for residential and commercial HVAC, lighting, and building automation control panels where a SPDT relay with 24-volt or 120-volt coil input is required.

Installation Notes

Installation should be performed by a licensed electrician or HVAC technician in accordance with the NEC and applicable local codes. De-energize and lock out all circuits before wiring coil or contact terminals. The 0.50-inch threaded nipple allows direct conduit connection to a junction box or control panel enclosure. Verify coil voltage matches the control circuit before energizing, and confirm contact load ratings are not exceeded for the connected load type.

Technical Specifications

• Product Type: Power Control Relay
• Contact Configuration: SPDT
• Coil Voltage: 24/120 volt AC, 24 volt DC at 50 to 60 Hz
• Contact Voltage Rating: 277 volt AC resistive/ballast/pilot duty, 480 volt AC resistive, 120 volt AC tungsten/pilot duty
• Contact Current Rating: 5/20 amps resistive, 20/16 amps ballast, 10 amps tungsten
• Motor Rating: 2 HP
• Pilot Duty Rating: 1110 VA
• Enclosure: NEMA 1
• Dimensions: 3.20 inches x 1.80 inches x 2.30 inches
• Included Accessories: LED indicator, 16-inch 600-volt rated wire, 0.50-inch threaded nipple
• Operating Temperature: -30 to 140 degrees F
• Certifications: UL 916/864, CUL, CE, UL Canada and US, RoHS compliant

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: rib2401b