Eaton / Westinghouse EHB3060 Molded Case Circuit Breaker

This bolt-on breaker is designed specifically for legacy Westinghouse NEHB distribution panelboards. It is not physically compatible with modern Eaton Pow-R-Line enclosures, which typically require compact G-Frame breakers like the GHB series.

No. The 14kA interrupting capacity at 480/277VAC is a slash rating. According to the NEC, this indicates the breaker is only approved for solid-grounded wye networks (480Y/277V) where the line-to-ground voltage does not exceed 277V. It is not UL listed for ungrounded or impedance-grounded 480V Delta applications.

No, the EHB3060 features a non-interchangeable, fixed thermal-magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) trip parameters are permanently set at the factory for a 60A continuous load and cannot be field-adjusted.

The factory-installed load lugs accept both copper and aluminum (Cu/Al) conductors ranging from 14 AWG to 2 AWG. When terminating aluminum wire, always apply an approved oxide-inhibiting compound to the stripped conductor to prevent galvanic corrosion.

Yes, this breaker carries an HACR rating. It has passed the required UL safety testing to handle the severe motor inrush currents and operational demands of commercial heating, air conditioning, and refrigeration circuits.

Yes. After Eaton acquired the distribution equipment divisions of Westinghouse and later Cutler-Hammer, the EHB series was manufactured under all three brand labels. Regardless of the name on the front sticker, they are identical in fit, form, and function.

No. Even though both share the Eaton and Cutler-Hammer brand lineage, they belong to entirely different frame families. The EHB3060 is a classic E-Frame breaker for NEHB panels, whereas the GHB3060 is a G-Frame breaker designed for Pow-R-Line (PRL) panelboards. Their mounting hardware and physical dimensions are not interchangeable.