Functional Devices RIBU1C-N4 Relay

The Functional Devices RIBU1C-N4 is a versatile enclosed pilot relay engineered for demanding HVACR and building automation applications requiring NEMA 4X weatherproofing. This SPDT relay features a multi-voltage input range of 10-30 Vac/Vdc or 120 Vac, making it a reliable choice for interfacing between low-voltage control circuits and line-voltage loads. With a 10 Amp contact rating, this unit is built for durability in harsh environments, utilizing a high-quality dry contact relay mechanism to ensure signal integrity. The compact Relay-in-a-Box design facilitates rapid installation on the exterior of air handlers or pumping stations where moisture and dust ingress are concerns. Technicians frequently specify the RIBU1C-N4 for industrial control systems because its gold-flashed contacts allow for switching low-current logic levels or high-current power loads with equal reliability. Its UL listed enclosure provides a secure housing that eliminates the need for additional junction boxes in field-mounted scenarios.

• NEMA 4X Enclosure: Provides superior protection against corrosion, windblown dust, and rain, ideal for outdoor or wash-down environments.
• Universal Input: Simplifies inventory by supporting 10-30V AC/DC and 120V AC coil voltages in a single device.
• Pre-Wired Leads: Includes color-coded wires for fast pilot relay wiring and reduced labor time.
• LED Status Indicator: Allows for immediate visual verification of relay coil energization during troubleshooting.
• Flexible Mounting: Internal mounting holes and a compact footprint allow for installation in tight spaces or direct surface mounting.

Can this relay be used for motor loads?
Yes, it is rated for 1/3 HP at 120 Vac and 1/2 HP at 240 Vac, though it is primarily used as a pilot duty relay for larger contactors or as a signaling device for BAS controllers.

What is the benefit of the NEMA 4X rating over NEMA 1?
The NEMA 4X rating ensures the RIBU1C-N4 is airtight and watertight. This prevents contact oxidation and short circuits in high-humidity or outdoor rooftop applications where standard enclosed relays would fail.

Does this unit support DC control signals?
Yes, the low-voltage coil accepts 10-30 Vdc, making it compatible with most modern DDC controllers and security panels.

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.