Eaton Cutler-Hammer W22-AUX Aux Contact

The Eaton Cutler-Hammer W22-AUX Auxiliary Contact is a heavy-duty 2NO/2NC auxiliary contact block designed for seamless integration with Eaton Freedom NEMA contactors. Built for industrial motor control applications, this unit provides two normally open and two normally closed tie points to expand your control circuit's logic and monitoring capabilities. Whether you are standardizing a panel or replacing a worn component, the W22-AUX ensures reliable signaling for status indication, interlocking, or pilot light operation within NEMA rated motor starters and contactors.

As a genuine Cutler-Hammer auxiliary switch, it is engineered to withstand the high-cycle demands of HVACR and industrial environments. The W22-AUX contact configuration simplifies field installation by snapping directly onto the Freedom Series contactor, eliminating the need for complex mounting hardware. For technicians troubleshooting control loops, these contacts offer the fast response times and low contact resistance required for sensitive PLC inputs and high-voltage coil circuits alike.

Key Benefits for HVACR Contractors

• Universal Freedom Series Compatibility: Fits perfectly on Eaton Freedom NEMA contactors to ensure zero-clearance integration.
• Enhanced Circuit Logic: Provides four additional poles (2 Normally Open / 2 Normally Closed) for complex interlocking sequences.
• OEM Reliability: Manufactured to Cutler-Hammer industrial standards, ensuring consistent performance in high-vibration applications.
• Direct Snap-On Installation: Reduces labor time during field upgrades or emergency repairs on motor control centers.
• Secure Tie-Point Connections: Features robust terminals designed to maintain high-torque wire retention for long-term electrical stability.

Common Questions

What contactors are compatible with the W22-AUX?
The W22-AUX is specifically engineered for the Eaton Freedom Series. It is commonly used with NEMA Size 00 through Size 2 contactors and starters to add auxiliary signaling without increasing the footprint of the main device.

Can I use this for pilot light indication and safety interlocking simultaneously?
Yes. With the 2NO/2NC contact set, you can utilize the normally open contacts for "Run" indication and the normally closed contacts for electrical interlocking or "Fault" signaling within the same control circuit.

Does this unit require separate mounting hardware?
No. The W22-AUX auxiliary contact block is designed as a direct-mount component that secures firmly to the side or top of the compatible Freedom NEMA contactor frame.

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.