{"product_id":"square-d-ma263501021-circuit-breaker","title":"Square D | MA263501021 | Circuit Breaker | 350A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D MA263501021 circuit breaker — a robust, three-pole protection device designed for demanding 3-phase systems. Built to handle serious load requirements, this 350A, 600V breaker is ideal for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 350A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole (3-phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePurpose:\u003c\/strong\u003e Suitable for maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this specific MA263501021 model stands out\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongexact spec compatibility:\u003e The part number MA263501021 is the best reference for ensuring proper fit within your panel or distribution system. It’s designed to integrate with existing Square D layouts and 3-pole 600V applications.\u003c\/strongexact\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongreliable protection:\u003e With a three-pole configuration, it guards all legs of your 3‑phase circuits, helping to prevent uneven loading and electrical faults that could impact equipment uptime.\u003c\/strongreliable\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongconfigurable for retrofit projects:\u003e When upgrading old panels or replacing failed units, this breaker provides a straightforward path to reestablishing solid overcurrent protection without overhauling your electrical architecture.\u003c\/strongconfigurable\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal applications and use cases\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eIndustrial facilities with 3‑phase equipment or motors powered by up to 600V systems\u003c\/li\u003e \u003cli\u003ePanel upgrades and retrofits where exact MA263501021 specifications are required\u003c\/li\u003e \u003cli\u003eMaintenance replacements to minimize downtime and maintain continuity of operations\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for purchasing and installation\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eVerify fit and ratings\u003c\/strong\u003e before ordering. The MA263501021 part number is the most reliable reference for compatibility with your panel model and electrical architecture.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlan for panel compatibility\u003c\/strong\u003e—confirm that your enclosure, bus arrangement, and mounting provisions align with a 3‑pole 600V protective device of this amperage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSafety and maintenance\u003c\/strong\u003e—utilize proper lockout\/tagout procedures and follow OEM guidelines during replacement to ensure safe, code-compliant operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the right circuit breaker matters for reliability and long-term cost of ownership. The Square D MA263501021 350A 3‑Pole 600V device delivers precise protection for demanding 3‑phase networks, supports retrofit initiatives, and helps reef in your electrical system with a dependable, compatible replacement option. When in doubt, reference the exact part number to confirm fit, and you’ll reduce guesswork while safeguarding critical equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426398621858,"sku":"MA263501021","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-ma263501021-circuit-breaker-350a-3-pole-600v-196.webp?v=1789569668","url":"https:\/\/www.ampstate.com\/products\/square-d-ma263501021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}