Eaton C25BNB230B (45EG20AG) Contactor

The Eaton C25BNB230B (also identified by technical cross-reference 45EG20AG) is a robust 2-pole definite purpose contactor engineered for high-cycle applications in HVACR systems. This 30-amp contactor utilizes an open-type enclosure with a heavy-duty metal mounting plate for secure installation in air conditioning and refrigeration condensers. Designed for 208-240Vac 50/60Hz coil voltage, this compact unit features non-reversing operation and is rated for inductive loads common in compressor and motor control circuits. The DP contactor frame size is optimized for space-constrained electrical panels, providing reliable switching for resistive and motor loads. Field technicians prefer this model for its binding head terminals and quick-connect power connections, ensuring a low-impedance path and reduced heat generation during continuous duty. Replacing a worn contactor with this OEM-grade component prevents pitting and welding of contacts, maintaining the electrical integrity of the entire system.

Key Benefits for Contractors

• Universal Compatibility: Direct drop-in replacement for 45EG20AG and various Eaton C25 series 2-pole configurations.
• Industrial Grade Build: Features a high-integrity metal mounting plate for vibration resistance in outdoor units.
• Low Power Consumption Coil: Optimized 208-240V coil draw reduces stress on control transformers.
• Compact Footprint: Efficient open frame design fits easily into packed control boxes.
• Durable Contacts: Specifically rated for 30 amp inductive loads, providing clean break/make cycles for compressors.

Common Questions

Can this contactor replace a 25-amp unit in a residential condenser?
Yes, you can upgrade from a 25-amp to a 30-amp contactor like the Eaton C25BNB230B as long as the coil voltage matches (208/240V). The higher amperage rating provides a greater safety margin for the contacts.

What is the difference between this and a 1-pole contactor?
A 2-pole contactor breaks both sides of the incoming line power, whereas a 1-pole unit only breaks one side. This provides a safer electrical isolation for the technician and the equipment components.

Are the terminals compatible with ring or spade connectors?
This definite purpose contactor is equipped with binding head screws and quick-connect terminals, allowing for versatile field terminations using either stripped wire or standard spade connectors.

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.