Eaton / Cutler-Hammer EHD1045 Molded Case Circuit Breaker

Yes. Eaton acquired the Westinghouse and Cutler-Hammer circuit breaker lines. An Eaton EHD1045 is the direct replacement for older Westinghouse and Cutler-Hammer breakers sharing the EHD1045 catalog number.

This F-frame breaker is designed for use in Eaton Series C panelboards, including Pow-R-Line models such as PRL1a, PRL2a, PRL3a, and PRL4. It is also compatible with Eaton switchboards and motor control centers.

The F-frame designation refers to the physical size and standardized dimensions of the breaker within the Eaton Series C family. All F-frame breakers share the same footprint, which simplifies panelboard design and allows for easier upgrades or replacements without modifying the panel layout.

Yes, the factory-installed lugs are dual-rated for both copper and aluminum conductors. They accept wire sizes ranging from 14 AWG to 1/0 AWG. Always refer to the breaker nameplate for the correct terminal torque values during installation.

Bolt-on breakers like the EHD1045 are secured directly to the panelboard bus with screws or bolts. This creates a highly reliable, vibration-resistant connection that is preferred in heavy commercial and industrial environments compared to standard plug-on designs.

Yes. While commonly used for 277VAC applications, this breaker is also UL listed for 125VDC systems with a 10kA interrupting capacity. This dual rating allows it to be used in industrial DC control panels and battery systems.

No. This is a standard thermal-magnetic circuit breaker. It provides long-time and instantaneous (LI) trip functions for overload and short-circuit protection, but it does not include GFCI or AFCI circuitry.