{"product_id":"eaton-mdlb3700-700a-600v-3-pole-circuit-breaker","title":"Eaton MDLB3700 - 700 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton MDLB3700 is a high-capacity, 3-pole molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a 700A rating and a 600V capacity, it’s built to handle demanding environments while keeping your electrical system secure and responsive.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCompact design that respects your panel layout\u003c\/strong\u003e — this molded case circuit breaker occupies minimal space without sacrificing performance, allowing you to maximize panel efficiency in assemblies that demand reliable protection without bulk. The 3-pole configuration is ideal for three-phase systems, delivering balanced protection across all conductors in commercial and light industrial applications.\u003c\/p\u003e \u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e for efficient use of panel space and easier installation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e providing stable, repeatable protection across temperature variations\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole construction\u003c\/strong\u003e suited for 3-phase systems and balanced fault protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V rating\u003c\/strong\u003e appropriate for common commercial and industrial electrical environments\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e700A amperage rating\u003c\/strong\u003e for high-capacity branch circuits and feeders\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-loadcenter compatibility\u003c\/strong\u003e designed to work with matching Eaton and OEM panelboards and loadcenters\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Eaton\u003c\/li\u003e \u003cli\u003ePart Number: MDLB3700\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 700A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600V\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho is this ideal for?\u003c\/h2\u003e\n\u003cp\u003eEngineered for \u003cstrong\u003eresidential, commercial, and light industrial\u003c\/strong\u003e environments, the MDLB3700 fits large residential panels needing robust feeder protection, as well as commercial service equipment and small- to mid-size industrial load centers where reliable trip performance is essential. If you’re upgrading an aging panel or designing a new distribution system that demands precise protection and space-conscious design, this breaker is a strong fit.\u003c\/p\u003e \u003ch2\u003eWhy choose the MDLB3700 over others\u003c\/h2\u003e\n\u003cp\u003eBeyond raw capacity, the MDLB3700 pairs \u003cstrong\u003etrusted Eaton engineering\u003c\/strong\u003e with an \u003cstrong\u003eintelligent thermal-magnetic trip\u003c\/strong\u003e mechanism, delivering fast magnetic response to short circuits while preventing nuisance trips during normal load fluctuations. Its \u003cstrong\u003epanelboard and loadcenter compatibility\u003c\/strong\u003e reduces integration friction, streamlining procurement and serviceability in mixed-brand or OEM-specific installations.\u003c\/p\u003e \u003ch2\u003ePractical use cases and tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUse in large residential service panels for heavy feeders or sub-feed circuits requiring robust protection.\u003c\/li\u003e \u003cli\u003eInstall in commercial electrical rooms where three-phase distribution and reliable short-circuit protection are critical.\u003c\/li\u003e \u003cli\u003ePair with matching Eaton loadcenters to simplify parts inventory and service procedures.\u003c\/li\u003e \u003cli\u003eDuring installation, verify conductor sizing and torque specifications per panel manufacturer guidance to maintain optimal protection and performance.\u003c\/li\u003e \u003cli\u003ePlan for periodic inspection of the panel area to ensure the trip unit remains within its intended operating temperature range and to confirm no signs of wear on mounting surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Eaton MDLB3700, you get a purpose-built solution that combines compact form with dependable protection, making it a practical, long-term choice for safeguarding circuits in diverse electrical environments. Choose this 700A, 600V, 3-pole molded case breaker when you need precise, consistent protection that aligns with OEM panel systems and real-world usage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349638992034,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-mdlb3700-700-a-600-v-3-pole-circuit-breaker-ampstate-breakers-487.webp?v=1788699754","url":"https:\/\/www.ampstate.com\/products\/eaton-mdlb3700-700a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}