{"product_id":"eaton-hmcps003a0-3a-600v-3-pole-circuit-breaker","title":"Eaton HMCPS003A0 - 3 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCPS003A0 is a compact, 3-pole molded case circuit breaker engineered to protect your electrical system from overloads and short circuits. With a 3 A rating and a 600 V capacity, this unit is purpose-built for reliable branch-circuit protection in panelboards and load centers, delivering steady performance in residential, commercial, and light industrial environments. \u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient molded case design:\u003c\/strong\u003e Its compact footprint helps you maximize panel space without sacrificing protection, making it ideal for tight electrical installations or retrofit projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Combines heat and magnetic trip elements to provide stable, repeatable protection. It responds quickly to short circuits and minimizes nuisance trips on gradual inrush, helping keep critical loads online.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility:\u003c\/strong\u003e Designed to align with matching OEM load centers and panelboards, ensuring a precise fit and straightforward integration during installations or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase readiness with solid rating:\u003c\/strong\u003e 3-pole configuration supports three-phase systems where applicable, while the 600 V rating covers a broad range of commercial and industrial panel architectures.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HMCPS003A0\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 3 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 scenarios\u003c\/h3\u003e\n\u003cp\u003eAre you updating a panelboard or load center that serves a dedicated 3-phase circuit? The HMCPS003A0 is well-suited for that role, offering precise protection for small but critical loads in commercial spaces, light industrial equipment rooms, or residential setups with three-phase infrastructure. Its reliable trip characteristics help safeguard motors, transformers, and other high-demand devices from damaging surges while preserving overall system integrity.\u003c\/p\u003e \u003ch3\u003eHow it compares and why professionals choose it\u003c\/h3\u003e\n\u003cp\u003eCompared to generic breakers, this Eaton unit emphasizes OEM compatibility and a streamlined installation experience. The molded case construction resists vibration and wear, so it holds up under typical panelboard environments. The combination of a compact form factor and a thermal-magnetic trip mechanism provides a balance of protection, predictability, and longevity that electricians trust for both new builds and service upgrades.\u003c\/p\u003e \u003ch3\u003ePractical tips for installation and use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify your panelboard is compatible with 3-pole molded case breakers of this type before installation.\u003c\/li\u003e \u003cli\u003eEnsure correct terminal torque according to Eaton’s installation guidelines to maintain reliable electrical contact and long-term performance.\u003c\/li\u003e \u003cli\u003eUse as part of a complete protection strategy: pair with appropriate conductors, overcurrent protection downstream, and proper enclosure selection to maintain system safety.\u003c\/li\u003e \u003cli\u003eIf replacing an existing unit, match the amperage, voltage rating, and pole count to avoid compatibility issues and ensure consistent trip characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349615399074,"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_ee57f8fb-8ad7-43ca-9d7a-7296dc8bc473.png?v=1764151424","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcps003a0-3a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}