White-Rodgers 90-291Q Fan Relay

The White-Rodgers 90-291Q is a technical-grade HVAC fan relay designed for switching single or two-speed fan motors, solenoids, and resistive loads in commercial and residential systems. As a Type 84 enclosed relay, it features a Single Pole Normally Open (SPNO) configuration, making it a standard choice for 120V fan relay replacements where reliability is non-negotiable. The 120V AC coil operates at a nominal 25 mA with a DC resistance of 2,000 Ohms, maintaining a low power footprint of 3 VA (nominal) and 4 VA (inrush). Built for continuous duty in temperatures ranging from -40°F to 150°F, this unit provides clean switching for furnace blowers and air conditioning components.

For contractors managing 125/250 VAC loads, the 90-291Q relay handles up to 8 Amps of continuous inductive current and 25 Amps inrush, ensuring durability during high-demand motor startups. Its compact, totally enclosed design allows for mounting in any position, simplifying field installations within tight control cabinets. Industry professionals frequently utilize this SPNO relay for HVAC motor control and general-purpose switching, relying on its 1/4-inch quick-connect terminals for efficient wiring and secure electrical mating. Whether you are addressing a furnace relay replacement or integrating a booster fan, this component meets UL and CSA standards for industrial performance.

• High-Temperature Rating: Robust construction allows for stable operation in ambient temperatures up to 150°F.
• Versatile Mounting: The enclosed Type 84 housing permits multi-positional installation in high-density control panels.
• Broad Compatibility: Efficiently controls fan motors, solenoids, and resistive heating elements.
• Proven Durability: Rated for up to 8 Amps continuous inductive load and 16 Amps resistive.
• Standardized Terminals: Equipped with 1/4-inch quick-connect terminals for standard technician lead sets.

Can I use the 90-291Q to replace a DPST relay?
No, this is a Single Pole Normally Open (SPNO) relay. If your application specifically requires a Double Pole setup for switching two separate circuits, you should look for a 90-series DPST or DPDT equivalent.

Is the 90-291Q suitable for 240V coil applications?
This specific model features a 115/120 VAC coil. Using it with a 240V power source will result in coil burnout. For 240V control circuits, refer to the 90-292Q or 90-295Q series.

Does this relay work with both heating and cooling fans?
Yes, it is designed for general-purpose switching in both heating and air conditioning systems, provided the load does not exceed the 8 Amp continuous inductive rating.

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.