{"product_id":"square-d-ma36300-circuit-breaker","title":"Square D | MA36300 | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D MA36300 is a purpose-built 3-pole circuit breaker designed for maintenance, retrofit, and replacement tasks where exact specifications matter. With a three-pole configuration, it provides robust protection for three-phase electrical distribution, making it a reliable choice for panel upgrades, service refreshes, or replacement projects in professional installations.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this MA36300 3-Pole breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e3-Pole configuration supports three-phase systems, enabling coordinated protection across all conductors in typical industrial and commercial power layouts.\u003c\/li\u003e \u003cli\u003eDesigned for maintenance, retrofit, and replacement scenarios where precise matching specs are essential to maintain electrical safety and performance.\u003c\/li\u003e \u003cli\u003eThe MA36300 part number serves as the most reliable compatibility reference—use it to verify fit with your existing Square D panel and related protective devices.\u003c\/li\u003e \u003cli\u003eClear guidance that helps you avoid mismatches by confirming fit and ratings before ordering, reducing downtime and returns.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a worn or failed 3-pole breaker in a three-phase panel to restore normal operation quickly and safely.\u003c\/li\u003e \u003cli\u003ePerforming retrofits or panel upgrades where the exact MA36300 specification is required to maintain system protection standards.\u003c\/li\u003e \u003cli\u003eBuilding a service stock for maintenance teams that standardizes on a specific part number to simplify ordering and cross-reference checks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow to verify compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCheck your panel labeling and documentation to see if the MA36300 part number is listed as an approved component for your system.\u003c\/li\u003e \u003cli\u003eMatch the part number MA36300 to your existing protection scheme to ensure the same trip characteristics and mounting arrangement are maintained.\u003c\/li\u003e \u003cli\u003eBefore ordering, confirm the intended voltage, current rating, and interrupting capacity align with your service requirements and panel specifications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and best-practice reminders\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePower down the equipment, follow lockout\/tagout procedures, and use appropriate personal protective equipment.\u003c\/li\u003e \u003cli\u003eFollow all relevant electrical codes and manufacturer guidelines when replacing or installing the breaker.\u003c\/li\u003e \u003cli\u003eHandle the device carefully to prevent damage to terminals and contacts during installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecification snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003ePart number: MA36300\u003c\/li\u003e \u003cli\u003eBrand: Square D\u003c\/li\u003e \u003cli\u003eType: Circuit Breaker\u003c\/li\u003e \u003cli\u003eRecommended use: maintenance, retrofit, and replacement where exact specs are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425679921314,"sku":"MA36300","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-ma36300-circuit-breaker-3-pole-120.webp?v=1789440851","url":"https:\/\/www.ampstate.com\/products\/square-d-ma36300-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}