White-Rodgers 90-342 Relay

The White-Rodgers 90-342 Relay is a heavy-duty 2PDT (Double Pole Double Throw) switching solution designed for high-demand HVACR applications. Engineered for reliability in 208/240V circuits, this Type 91 semi-enclosed relay features a 240V coil with a 1600 Ohm DC resistance, making it an ideal choice for fan control, heat pump sequencing, and general-purpose switching in commercial appliances or vending machines. Built for continuous duty, the 90-342 is rated for 12 FLA at 125 VAC and 6 FLA at 250/277 VAC, providing the mechanical endurance required for inductive loads like blowers and motors. Its compact, panel-mount design includes standard 1/4 inch quick-connect terminals, ensuring a fast and secure interface for technicians during field replacements. This 2-pole relay replaces common industry equivalents like the Honeywell R4222D1021, offering a versatile footprint that fits standard fan control centers and switching enclosures. With a temperature rating of -40°F to 130°F, it maintains stable performance across diverse operating environments.

• Universal HVACR Compatibility: Operates as a direct replacement for various RBM Type 91 and Honeywell general purpose relays.
• Dual-Pole Switching: The 2PDT configuration allows for simultaneous control of two separate circuits, ideal for complex 240V switching.
• High Amperage Rating: Rated for a 15A resistive load at 277 VAC, providing robust handling for both power-rated contacts and pilot duty.
• Reliable Coil Performance: The 208/240VAC coil is designed for low power consumption with a nominal 9.5 VA draw and 22 VA inrush capability.
• Technician-Friendly Install: Features molded terminal numbers and a clear circuit diagram on the housing for error-free wiring.

Is the White-Rodgers 90-342 compatible with 208V systems?
Yes, the coil is rated for both 208V and 240V AC at 50/60 Hz, making it suitable for standard single-phase and three-phase commercial power legs.

Can this relay be used for motor starting?
This relay is rated for 1/2 HP at 125/250 VAC, making it suitable for small fan motors, blowers, and pumps within these specific horsepower limits.

Does the 90-342 replace the MARS 90342?
Yes, this is the industry-standard equivalent to the MARS 90342 and can be used interchangeably in most furnace and air conditioning applications.

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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.