{"product_id":"eaton-hmcp150u4y-150a-600v-3-pole-circuit-breaker","title":"Eaton HMCP150U4Y - 150 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cstrong\u003eEaton HMCP150U4Y\u003c\/strong\u003e is a rugged 150 A, 600 V, 3-pole molded case circuit breaker designed to provide dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for residential, commercial, and light industrial environments, this unit helps you protect critical electrical circuits while maximizing space in your electrical distribution layout. \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e optimizes panel space, letting you fit more circuits without compromising protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining thermal overload sensing with instantaneous magnetic protection for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to pair with matching OEM loadcenters and panelboards for straightforward installation and reliable fit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e supports three-phase systems, ideal for commercial and light industrial power distribution as well as large residential setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh current and voltage ratings\u003c\/strong\u003e—150 A at up to 600 V—providing robust protection for feeders, motors, and multi-wire branch circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongmanufacturer:\u003e Eaton\u003c\/strongmanufacturer:\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongpart number:\u003e HMCP150U4Y\u003c\/strongpart\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential service panels and multi-circuit distribution where reliable overcurrent protection is essential.\u003c\/li\u003e \u003cli\u003eCommercial electrical panels that feed lighting, receptacle banks, and small motors in offices, retail, or healthcare facilities.\u003c\/li\u003e \u003cli\u003eLight industrial panelboards that require robust 3-phase protection for feeders and equipment circuits.\u003c\/li\u003e \u003cli\u003eOEM-installed panels where a direct, compatible replacement ensures quick installation and consistent protection performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits you’ll notice\u003c\/h3\u003e\n\u003cp\u003eBecause the HMCP150U4Y uses a thermal-magnetic trip mechanism, you get predictable protection behavior across varying ambient temperatures and fault conditions. The compact form factor translates to more efficient panel layouts, while the three-pole design simplifies wiring for three-phase systems and reduces the number of individual breakers needed in larger installations. Its compatibility with matching OEM load centers means you can install with confidence, knowing the breaker will align with bus stabs, mounting, and internal clearances designed by the original equipment manufacturer.\u003c\/p\u003e \u003ch3\u003eInstallation and maintenance considerations\u003c\/h3\u003e\n\u003cp\u003eTo ensure optimal performance, pair this breaker with the appropriate OEM load center or panelboard. Verify that the panel is rated for the same voltage and that the bus configuration matches a 3-pole molded case breaker designed for your specific enclosure. Regularly inspect for any signs of wear or arcing in the distribution panel, and replace the breaker if it shows signs of degraded trip protection or physical damage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349608747170,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_a68030e0-6f1a-4a7e-9067-62a598b6d113.png?v=1764151171","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp150u4y-150a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}