{"product_id":"square-d-lhl364001037","title":"Square D LHL364001037 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LHL364001037 400A 3-Pole 600 V Circuit Breaker—a purpose-built protector for demanding 3‑phase power systems. Designed to guard heavy electrical loads, this 400‑amp, three‑pole breaker disconnects all three hot legs at once, delivering reliable protection for 600‑V circuits and the equipment they power. When reliability and safety matter in industrial and commercial environments, this Square D unit stands up to the task with precision and consistency.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 400 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003ePart number: LHL364001037\u003c\/li\u003e \u003cli\u003eBrand: Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy a 3-pole breaker matters for your system\u003c\/h3\u003e\n\u003cp\u003eIn any 3‑phase installation, protecting all three conductors simultaneously minimizes the risk of unbalanced loads, arc faults, and equipment damage. The LHL364001037 provides coordinated tripping across all phases, helping you maintain system safety, reduce downtime, and simplify maintenance planning in distribution panels and service equipment that rely on robust 3‑phase protection.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMain or branch protection in industrial distribution panels supporting 3‑phase machinery\u003c\/li\u003e \u003cli\u003eProtection for large motors, pumps, and conveyors fed by a 600 V electrical network\u003c\/li\u003e \u003cli\u003eUpgrades or replacements in facilities with 400 A service requirements and 3‑phase power\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets this Square D device apart\u003c\/h3\u003e\n\u003cp\u003eThe LHL364001037 is more than a generic breaker. It’s a genuine Square D component, engineered to deliver dependable performance in high‑demand environments. The 400 A rating provides substantial protection for heavy loads, while the 3‑pole configuration ensures immediate, balanced shutdown of all phases in the event of an overcurrent. With a 600 V rating, it’s designed to work with modern industrial power systems, helping safeguard critical equipment and minimize the impact of electrical faults.\u003c\/p\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel accepts LHL‑series breakers and that the form factor aligns with your Square D distribution equipment.\u003c\/li\u003e \u003cli\u003eEnsure proper electrical torque and secure terminal connections when installing to maintain reliable performance.\u003c\/li\u003e \u003cli\u003eUse as a main disconnect or a branch‑circuit protector in systems where 3‑phase, 600 V service is standard.\u003c\/li\u003e \u003cli\u003eKeep the part number LHL364001037 handy for ordering replacements or compatible spares to avoid compatibility issues during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor engineers and facilities teams aiming to protect high‑current, three‑phase loads with a trusted name in electrical protection, the Square D LHL364001037 400A 3‑Pole 600 V Circuit Breaker delivers clear, measurable value—clarity, reliability, and a solid path to safer, more resilient power distribution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423101210786,"sku":"LHL364001037","price":5942.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-lhl364001037-400a-3-pole-600-v-circuit-breaker-435.webp?v=1789269782","url":"https:\/\/www.ampstate.com\/products\/square-d-lhl364001037","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}