{"product_id":"westinghouse-ehd3040-40a-3p-480v-circuit-breaker","title":"Westinghouse EHD3040 40A 3P 480V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWestinghouse EHD3040\u003c\/strong\u003e is a dependable 40 Amp, 3-pole circuit breaker designed for everyday electrical protection in panelboards, load centers, and distribution networks. Built for replacement projects and reliable spare stocking, this unit helps you keep your BOM aligned with the original part number, ensuring a seamless swap when uptime matters most.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Westinghouse\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e EHD3040\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 3-pole 480V breaker stands out\u003c\/h3\u003e\n\u003cp\u003eDesigned to safeguard 3-phase electrical systems, the EHD3040 delivers consistent, reliable protection across all three conductors in a 480V distribution network. Its OEM design means it drops in alongside Westinghouse or compatible panelboards and load centers without modification, helping maintain system integrity and trip coordination. If your project calls for a genuine BOM-aligned replacement part, this breaker provides a precise, factory-approved fit.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacement projects where the original part number must be preserved to avoid compatibility issues\u003c\/li\u003e \u003cli\u003eSpare parts stocking for electrical maintenance teams to minimize downtime\u003c\/li\u003e \u003cli\u003eUpgrading or repairing 3-phase 480V circuits in commercial or industrial facilities\u003c\/li\u003e \u003cli\u003ePanelboard and load center protection where dependable, repeatable performance is required\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits and outcomes\u003c\/h3\u003e\n\u003cp\u003eWith the Westinghouse EHD3040, you can expect straightforward installation, reliable tripping behavior for 3-phase loads, and a form factor that matches standard 480V distribution equipment. This makes it easier to source, replace, and maintain critical protection without surprises during commissioning or routine maintenance. By keeping a genuine OEM part on hand, you reduce the risk of compatibility gaps and ensure consistent protective coordination across your electrical system.\u003c\/p\u003e \u003ch3\u003eHow to ensure the right fit\u003c\/h3\u003e\n\u003cp\u003eNeed help confirming compatibility with your specific panel or BOM? AmpState provides support to verify part fit and ensure you’re ordering the correct EHD3040 for your application. \u003cstrong\u003eAvailable from AmpState\u003c\/strong\u003e, and if you’re unsure about the match, simply reach out with your equipment details and we’ll help confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410891591842,"sku":"EHD3040","price":1097.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/westinghouse-ehd3040-40a-3p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}