Honeywell R4222B1082 Relay

The Honeywell R4222B1082 is a heavy-duty, general-purpose SPDT switching relay designed for demanding applications in refrigeration, air conditioning, and commercial appliances. Engineered with a 120V coil rating, this 12-amp relay is a direct professional-grade replacement for the 90-101 switching relay and is plug-compatible with Steveco 90-340 and Mars 90340 models. For efficient field diagnostics, the unit features molded terminal numbers and a circuit diagram on the top housing. The laminated magnet construction and untaped coil design ensure cooler, high-efficiency operation during continuous duty cycles. With 1/4-inch quick-connect terminals and a temperature rating of -20°F to 150°F, this HVAC switching relay provides reliable performance for fan motor control and inductive loads across 120V, 208/240V, and 480V systems. Whether you are troubleshooting vending machines or upgrading industrial control panels, the Honeywell R4222B1082 offers the versatile contact ratings required for both pilot duty and resistive applications.

• Universal Compatibility: Drop-in replacement for 90-101, Steveco 90-340, and Mars 90340 relays.
• High-Efficiency Design: Laminated magnet and untaped coil reduce heat buildup for longer service life.
• Streamlined Installation: Integrated circuit diagrams and molded terminal numbering eliminate wiring guesswork.
• Robust Contact Ratings: Rated for 12 AFL at 120VAC and up to 20.8A resistive loads, suitable for heavy-duty HVACR equipment.
• Versatile Application: Supports pilot duty (125 VA at 120/240VAC) and Powerpile (NO contacts only) for specialized control circuits.

Is the Honeywell R4222B1082 compatible with 115V systems?
Yes, the 120V coil is designed to operate reliably on standard 110V, 115V, and 120V AC circuits commonly found in residential and commercial HVAC systems.

Can I use this relay for both heating and cooling applications?
This SPDT (Single Pole Double Throw) relay is ideal for switching between heating and cooling stages, as well as controlling fan motors and other inductive components.

What are the mounting requirements for this model?
The base is designed for universal mounting, allowing for easy replacement of competitive relays in tight control panels without extensive hardware modification.

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.