Eaton C25BNB220A (45CG20AF) Contactor

The Eaton C25BNB220A is a commercial-grade 2-pole definite purpose contactor engineered for consistent performance in HVACR and light industrial control systems. Rated for 20 Full Load Amps (FLA) and 30 Resistive Amps, this non-reversing 45CG20AF cross-reference features a 110/120VAC coil (50/60 Hz) designed for high-cycle reliability. Its compact, open-type frame is built with a heavy-duty metal mounting plate and a low-VA coil, minimizing power consumption while ensuring secure integration into existing control panels. For field wiring efficiency, the unit includes side-by-side box lugs and quick-connect terminals, protected by a sealed housing that prevents debris ingress and reduces chattering noise. This UL-recognized Eaton contactor reflects industrial standards for durability in pump, compressor, and refrigeration applications where precise electrical contactor replacement is required for system uptime.

Technical Benefits for Contractors

• Direct OEM Compatibility: Serves as a drop-in replacement for 45CG20AF and other 20A, 120V inductive loads.
• Enhanced Arc Suppression: Equipped with an integrated arc cover to prevent phase-to-phase shorting and protect nearby components.
• Debris-Resistant Design: The sealed housing protects internal contacts from dust and insects, extending the service life of the HVAC contactor.
• Versatile Wiring: Dual box lug and quick-connect terminals provide flexibility for various wire gauges and termination types.

Common Technical Questions

Is the Eaton C25BNB220A compatible with 208/240V control circuits?
No, this specific model features a 120V coil. Using this contactor with a 240V control circuit will cause immediate coil failure. Verify your transformer output before installation.

What is the difference between FLA and Resistive ratings for this contactor?
The 20 Amp FLA (Full Load Amps) rating applies to inductive loads like compressors or motors, while the 30 Amp Resistive rating applies to non-inductive loads like electric heat strips.

Can this 2-pole contactor replace a 1-pole contactor?
Yes, a 2-pole contactor can replace a 1-pole unit, provided the physical footprint and 120V coil voltage match. It provides the added benefit of breaking both legs of the power supply for increased safety during servicing.

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.