Copeland Comfort Control (White Rodgers) 90-170 Contactor

The White-Rodgers 90-170 contactor is a heavy-duty 3-pole HVAC contactor engineered for demanding commercial and industrial applications. Built for reliable switching in air conditioning and refrigeration systems, this unit features a 40 amp inductive rating and a 24V coil designed to withstand voltage fluctuations common in field operations. The triple pole configuration ensures balanced power distribution across all legs, making it a critical component for 3-phase motor control and compressor management. Its semi-enclosed design minimizes dust ingress while allowing for efficient heat dissipation, reducing the risk of contact pitting or welding. When replacing high-draw components, the Copeland 90-170 provides the mechanical durability required to handle high locked rotor amps (LRA) without premature failure. Contractors rely on this heavy-duty contactor for its direct-fit compatibility and robust terminal construction, ensuring secure wire terminations and consistent electrical continuity in high-cycle environments.

• High Current Capacity: Rated for 40 amps to manage heavy inductive loads in 3-phase commercial systems.
• Optimized 24V Coil: Designed for precise actuation and compatibility with standard HVAC control circuits.
• Durable Contact Points: Silver cadmium oxide contacts provide superior resistance to arcing and oxidation.
• Universal Mounting Base: Features a versatile footprint for quick installation and replacement of various OEM contactors.
• Reliable Load Switching: Engineered for high-cycle reliability in compressors, motors, and resistive heating elements.

What is the difference between inductive and resistive amp ratings on this unit?
This contactor is rated for 40 FLA (Full Load Amps) for inductive loads like compressors and 50 amps for resistive loads like electric heat strips.

Can this contactor be used in a 1-phase application?
While designed as a 3-pole device for 3-phase equipment, it can technically be used for single-phase applications by utilizing only two of the poles, though a dedicated 2-pole contactor is typically preferred for those scenarios.

How do I verify if the 24V coil is functioning?
Check for continuity across the coil terminals (A1 and A2). If there is an open circuit or if the coil does not pull in when 24V is applied, the contactor requires replacement.

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.