{"product_id":"square-d-lal36400mb-600a-600v-3-pole-circuit-breaker","title":"Square D LAL36400MB - 600 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D LAL36400MB is a 600 A, 600 V, 3-pole molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for commercial, industrial, and even demanding residential environments, it delivers precise protection where it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e minimizes enclosure depth and maximizes usable space inside panelboards, helping you fit more circuits and conductors without crowding the bus.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines steady thermal protection with instantaneous magnetic tripping, delivering repeatable performance across loads and temperatures while quickly isolating faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e ensures coordinated protection across all three phases in 3-phase systems, reducing the risk of unbalanced faults and ensuring reliable shutdown when needed.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to pair with matching Square D OEM load centers and panelboards for straightforward replacement, consistent fit, and predictable electrical performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial applications where robust branch-circuit protection is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eTechnical specifications\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LAL36400MB\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 600 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 \u003cp\u003eWho benefits from the LAL36400MB? electricians, facilities managers, and panel builders who need a reliable, high-capacity breaker that fits within standard Square D panel systems. It’s an ideal choice when upgrading aging panels, expanding capacity in commercial spaces, or stocking a maintenance-ready inventory for consistent, code-compliant protection.\u003c\/p\u003e \u003cp\u003eWhy choose this model over other breakers? its 3-pole, 600 A rating is purpose-built for 3-phase distribution networks, while the thermal-magnetic trip unit provides dependable protection without frequent nuisance tripping. The compact form factor helps you maximize panel space, and OEM compatibility ensures a seamless, code-compliant installation within existing Square D ecosystems.\u003c\/p\u003e \u003cp\u003ePractical tips for use: verify that your panelboard is rated for 600 V and designed for 3-pole devices, confirm the breaker is a compatible match for your specific Square D load center, and follow the manufacturer’s installation instructions for terminal torque and alignment. By pairing the LAL36400MB with a matching panel, you gain predictable protection performance and simplified maintenance over the life of the electrical system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355316506786,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_9f53c494-2d31-4e79-8f67-cc7cda637146.png?v=1764691273","url":"https:\/\/www.ampstate.com\/products\/square-d-lal36400mb-600a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}