Functional Devices RIB243P Relay

The Functional Devices RIB243P is a robust 3PST-NO enclosed relay designed for demanding HVACR and lighting control applications. Engineered with a 24VAC/DC coil, this pilot-duty device isolates low-voltage control circuits from high-voltage loads up to 20 Amps. The triple-pole single-throw configuration allows for the simultaneous switching of three separate circuits, making it an ideal solution for 3-phase motor control or multi-circuit automation. Housed in a NEMA 1 rated enclosure with a pre-wired 1/2-inch NPT nipple, this dry contact relay simplifies field installation and reduces labor time. The RIB243P relay features a convenient LED indicator for immediate visual verification of the coil status. Its physical isolation between the Class 2 control circuit and the power load ensures system stability and reduces electromagnetic interference. This industrial-grade power relay is a reliable choice for contractors looking to consolidate multiple switching points into a single, compact footprint.

• Triple-Pole Control: Manage three high-amperage lines simultaneously with a single 24V control signal.
• High Current Rating: Rated for 20A resistive loads, providing overhead for heavy-duty HVAC components.
• Streamlined Installation: Features 16-inch pre-stripped leads and an integrated nipple for direct mounting to electrical boxes.
• Built-in Diagnostics: A high-visibility LED status indicator allows for rapid troubleshooting of the control signal.
• Versatile Coil Input: Compatible with both 24VAC and 24VDC systems, ensuring compatibility with standard building automation controllers.

Can the RIB243P be used to switch 3-phase motors?

Yes, the 3PST (Normally Open) configuration is specifically designed to handle all three legs of a 3-phase power supply, provided the amperage does not exceed the 20A rating per pole.

What is the difference between the RIB243P and a standard contactor?

While both switch power, the RIB243P is an enclosed relay that provides a cleaner installation without requiring a separate DIN rail or mounting enclosure, and includes a built-in status LED.

Where should this relay be mounted in a rooftop unit?

The device is typically mounted through any 1/2-inch knockout on the control cabinet or junction box, keeping the pilot-duty coil wiring separate from the high-voltage load side.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.