{"product_id":"square-d-ma12103-circuit-breaker","title":"Square D | MA12103 | Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eWhen your electrical system needs a precise, reliable replacement, the Square D MA12103 Circuit Breaker is built for maintenance, retrofit, and replacement projects that demand exact specifications. Rely on the part number MA12103 as your primary compatibility reference to ensure a seamless fit with your panel and protection needs.\u003c\/p\u003e \u003cp\u003eThis MA12103 isn’t a generic substitute—it's a genuine Square D component designed to deliver dependable overcurrent protection and consistent performance in real-world service. By starting with the exact part number, you reduce the guesswork and potential downtime that can come from mismatched breakers.\u003c\/p\u003e \u003ch3\u003eKey considerations for your purchase\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact reference\u003c\/strong\u003e: The MA12103 part number is the best reference for compatibility. Use it to verify that the breaker matches your panel’s requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFit and ratings first\u003c\/strong\u003e: Before ordering, confirm the panel model, interior labeling, and the required interrupting rating and form factor align with MA12103.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication flexibility\u003c\/strong\u003e: Suitable for ongoing maintenance, panel retrofits, or replacing a worn or failed breaker in supported Square D configurations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFacilities managers and electrical contractors performing panel maintenance or retrofits who need a precise, drop-in replacement\u003c\/li\u003e \u003cli\u003eHome improvement projects where a specific Square D part is specified by the panel documentation\u003c\/li\u003e \u003cli\u003eTechnicians seeking a consistent, manufacturer-backed solution to restore original protection characteristics\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat you can expect\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eClear compatibility reference: MA12103 as the anchor for selecting the correct breaker\u003c\/li\u003e \u003cli\u003eReliable protection alignment with your existing Square D panel’s design and safety parameters\u003c\/li\u003e \u003cli\u003eReduced risk of incompatible fittings or incorrect ratings that can impact performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e1 x MA12103 circuit breaker (per unit order)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and maintenance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the main and verify there is zero voltage before handling any breaker—lockout\/tagout procedures recommended\u003c\/li\u003e \u003cli\u003eDouble-check your panel’s model label and interior documentation to confirm MA12103 is the correct replacement\u003c\/li\u003e \u003cli\u003eHandle the breaker with clean hands and store it in a dry environment to maintain reliability\u003c\/li\u003e \u003cli\u003eIf you’re unsure about fit or ratings, consult a licensed electrician to prevent electrical hazards and ensure code compliance\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Square D MA12103 Circuit Breaker when accuracy and reliability matter most. By aligning your purchase with the exact part number, you empower safer operation, quicker service restorations, and long-term compatibility with your Square D panel ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427215659170,"sku":"MA12103","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/square-d-ma12103-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}