{"product_id":"siemens-hmx3b700l-700a-3-pole-circuit-breaker","title":"Siemens HMX3B700L - 700 A, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003eSiemens HMX3B700L is a 700A, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for demanding electrical environments, it combines a compact form factor with precise protection so you can design safer, more efficient power distributions. \u003ch3\u003eCompact, space‑efficient protection\u003c\/h3\u003e\n- The molded case design trades bulky hardware for a smaller footprint, freeing valuable panel space for wiring organization and easier maintenance.\n- Streamlined integration with matching OEM loadcenters and panelboards ensures a clean, reliable installation with fewer compatibility concerns. \u003ch3\u003eStable, repeatable protection you can trust\u003c\/h3\u003e\n- A thermal-magnetic trip unit provides dependable response across a wide range of operating temperatures, delivering consistent protection against overloads and short circuits.\n- The 3-pole configuration is ideal for balanced three-phase circuits, helping you maintain system stability and protective coordination in commercial and light industrial applications. \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n- \u003cstrong\u003eHigh-current capability\u003c\/strong\u003e: Rated at 700A, it is tailored for feeders and main distribution paths in panels where robust protection is essential.\n- \u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: Engineered to pair with Siemens and compatible OEM loadcenters and panelboards, reducing retrofit complexity and enhancing reliability.\n- \u003cstrong\u003eVersatile application\u003c\/strong\u003e: Suitable for residential, commercial, and light industrial environments where dependable branch-circuit protection is a must. \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HMX3B700L\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 700A\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- Upgrading or expanding panelboards in commercial spaces with high-current feeders.\n- Subpanel installations in office buildings, retail centers, or light industrial facilities where reliable 3-phase protection is required.\n- New construction projects that require compact, space-efficient protection without sacrificing safety margins. \u003ch3\u003eInstallation and practical tips\u003c\/h3\u003e\n- Verify compatibility with your existing or planned panelboard lineup by matching the OEM specification; HMX3B700L is designed to integrate smoothly with matching Siemens and compatible OEM loadcenters.\n- Plan for routine inspection of the trip unit and conductors during commissioning to ensure clean electrical connections and stable protection performance.\n- Consider coordination with upstream protective devices to achieve selective tripping and minimize downtime during faults. Siemens HMX3B700L offers a concrete, high-current protection solution that respects panel space, delivers reliable trip performance, and fits neatly into compatible loadcenters and panelboards. It’s the practical choice for professionals who need durable, area-efficient three-pole protection for demanding electrical systems.\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349812367522,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_3968df10-1abc-49ac-a43c-461eeab21324.png?v=1764157520","url":"https:\/\/www.ampstate.com\/products\/siemens-hmx3b700l-700a-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}