{"product_id":"eaton-mdlb3800-800a-600v-3-pole-circuit-breaker","title":"Eaton MDLB3800 - 800 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton MDLB3800 — a high-current, 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and loadcenters. With an 800 A rating and a 600 V capacity, this unit is built for demanding environments where reliability matters most, from commercial spaces to light industrial applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space, enabling cleaner wiring layouts and easier serviceability in constrained panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across temperature variations, reducing nuisance trips while maintaining fast response to overloads and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e provides balanced, coordinated protection for three-phase systems, essential for motors, pumps, and other three-phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e800 A, 600 V rating\u003c\/strong\u003e supports sizeable branch circuits and motor loads while preserving safe interruption capabilities for critical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e design ensures seamless integration with matching Eaton loadcenters and panelboards, simplifying replacements and upgrades without sacrificing performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile across environments\u003c\/strong\u003e ideal for residential, commercial, and light-industrial installations where reliable overcurrent and short-circuit protection is non-negotiable.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading large residential or small commercial panels that require robust 800 A protection for high-demand circuits.\u003c\/li\u003e \u003cli\u003ePowering three-phase equipment in light-industrial settings, such as HVAC systems, pumps, conveyors, and machining loads.\u003c\/li\u003e \u003cli\u003eReplacing aging or incompatible breakers in OEM panelboards, ensuring consistent protection and easy maintenance.\u003c\/li\u003e \u003cli\u003eSpace-constrained installations where a compact molded case breaker frees room for additional wiring and future expansions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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 MDLB3800\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 800 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\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eThe MDLB3800 is designed for real-world reliability where space, performance, and compatibility converge. Its thermal-magnetic trip mechanism delivers precise protection without the voltage or current fluctuations that plague less capable devices. The compact form factor makes it easier to fit high-capacity protection into existing panel layouts, and its OEM compatibility means you can upgrade with confidence, maintaining coordination with the rest of your Eaton loadcenter ecosystem. Whether you’re outfitting a commercial storefront, a warehouse, or a light-industrial facility, this breaker provides the dependable, high-current protection your electrical system relies on.\u003c\/p\u003e \u003ch3\u003eInstallation and care tips\u003c\/h3\u003e\n\u003cp\u003eTo get the most from the MDLB3800, ensure your panelboard is compatible with Eaton OEM breakers, follow the manufacturer’s installation guidelines, and torque terminations to the specified values. Regularly review protection coordination with adjacent breakers to minimize nuisance trips and ensure fast clearance of fault currents. For any retrofit or replacement, verify that the panel’s rating and the bus configuration align with the MDLB3800’s three-pole, 800 A, 600 V specifications to maintain optimal system performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349639024802,"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_b164832b-73e8-4f77-bafc-af7f824f0486.png?v=1764152221","url":"https:\/\/www.ampstate.com\/products\/eaton-mdlb3800-800a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}