{"product_id":"ehd3040","title":"Westinghouse EHD3040 - 40A, 480VAC, 3-Pole, Circuit Breaker","description":"\u003cdiv\u003e\n\u003ch2\u003eWestinghouse EHD3040 40A 480VAC 3-Pole Circuit Breaker — Precision Protection for Industrial Power\u003c\/h2\u003e\n\u003cp\u003eThe Westinghouse EHD3040 is a purpose-built 40A, 480V AC circuit breaker designed to deliver reliable overcurrent protection in demanding electrical environments. Its 3-pole configuration provides robust three-phase protection, making it an ideal choice for panelboards, switchboards, and control panels where dependable safeguarding of motors, drives, and feeders is essential.\u003c\/p\u003e \u003ch3\u003eWhy this 3-Pole breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e enables balanced, synchronized protection across all three phases, simplifying wiring and improving fault response in MCCs and distribution panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e40A current rating\u003c\/strong\u003e paired with a 480VAC rating supports mid-range motor control and high-load circuits common in industrial and commercial installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile integration\u003c\/strong\u003e designed to fit standard panelboard, switchboard, and control-panel footprints, reducing replacement time and inventory complexity for OEM projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOvercurrent protection you can trust\u003c\/strong\u003e to interrupt fault or overload conditions safely, helping minimize equipment damage and unplanned downtime in critical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWestinghouse reliability\u003c\/strong\u003e brings compatibility with existing electrical architectures and a proven track record in distribution panels and motor control centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial motor control centers (MCCs) and feeders in manufacturing lines, pumping stations, and conveyor systems.\u003c\/li\u003e \u003cli\u003eCommercial building distribution panels that require sturdy, three-phase protection for HVAC equipment, large lighting systems, and critical loads.\u003c\/li\u003e \u003cli\u003eOEM equipment where a compact, reliable 3-pole breaker is needed to safeguard integrated controls and power distribution.\u003c\/li\u003e \u003cli\u003eSwitchboards and distribution panels that demand consistent performance across fluctuating load profiles and fault conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems does it solve?\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents damage from overloads and short circuits by quickly interrupting fault currents in three-phase systems.\u003c\/li\u003e \u003cli\u003eSimplifies panel design and maintenance with a single 3-pole solution suitable for many standard configurations.\u003c\/li\u003e \u003cli\u003eReduces downtime risk in critical processes by providing stable, predictable protection for motors and drives.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 40A\u003c\/li\u003e \u003cli\u003eVoltage rating: 480VAC\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eBreaker type: Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for optimal use\u003c\/h3\u003e\n\u003cp\u003eWhen selecting the Westinghouse EHD3040, verify that your panelboard or MCC bus configuration accommodates a 3-pole device and that the intended loads operate within the 40A current range at up to 480V. For OEM or retrofit projects, consider how the 3-pole design can streamline wiring and improve phased protection across your system. Regular inspections of wiring terminations and mounting integrity will help maintain reliable performance in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default","offer_id":46390791372962,"sku":"EHD3040","price":137.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_4e6c5e11-9f13-46c7-8a21-643b9ec0f07a.png?v=1765379856","url":"https:\/\/www.ampstate.com\/products\/ehd3040","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}