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The EHD3040 – EATON 3P40A 480V Molded Case Breaker offers reliable circuit protection for three-phase applications. Designed for robust performance, this breaker ensures effective overload and short-circuit protection, enhancing system safety. Its compact design allows for easy installation, making it an ideal choice for industrial and commercial settings. Upgrade your electrical system today.
The EHD3040 carries a 14kA short-circuit interrupt rating at 480V AC. For most light commercial and industrial distribution panels this is adequate, but you should verify the available fault current (AFC) at your panel with your engineer or utility. If your system requires higher interrupting capacity, Eaton offers higher-rated frames — contact us and we can help identify the right option.
The Eaton EHD frame has largely been superseded by newer Eaton MCCB series, and availability can vary. Northern Breaker Group specialises in hard-to-find and obsolete breakers across Western Canada — contact our Calgary, Edmonton, or Vancouver counter for current stock or sourcing options.
Not necessarily. While the electrical ratings (40A, 3P, 480V, 14kA) may match another manufacturer's breaker, MCCBs are not universally interchangeable — panelboard bus compatibility, mounting style, and conductor termination dimensions must all align. Always verify that the replacement breaker is listed as compatible with your specific panelboard before installing. Our team can help you cross-reference your existing breaker.
