{"product_id":"square-d-qo120em","title":"Square D QO120EM 20A 1-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cstrong\u003eSquare D QO120EM 20A 1-Pole 240 V Circuit Breaker\u003c\/strong\u003e is a compact, reliable protection device engineered for residential panels that accept the QO series. With part number QO120EM, this breaker delivers precise overload protection for a single 240-volt circuit, helping keep wiring and connected equipment safe from faults and short circuits. \u003cp\u003eDesigned specifically for the Square D QO family, the QO120EM combines straightforward installation with dependable performance. Its 20-amp rating makes it ideal for circuits that require solid, consistent protection without sacrificing usability in standard home electrical setups.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel\/Part Number:\u003c\/strong\u003e QO120EM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Square D QO\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey benefits and practical value\u003c\/h3\u003e\n\u003cp\u003eWhy choose a 1-pole 240V breaker like the QO120EM? It’s purpose-built for protecting a dedicated 240-volt circuit in compatible panels, offering reliable interruption when overloads occur and helping prevent damage to wiring and connected appliances. The QO design is known for consistent trip characteristics and straightforward replacement, making it a practical choice for both professional electricians and diligent homeowners maintaining their own panels.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacement for a faulty 240V, 1-pole circuit breaker in compatible Square D panels\u003c\/li\u003e \u003cli\u003eProtection for specific 240V loads within a residential electrical system that uses QO-type breakers\u003c\/li\u003e \u003cli\u003eStock item for service professionals performing panel maintenance or upgrades\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and safety tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways shut off main power before handling or replacing breakers.\u003c\/li\u003e \u003cli\u003eVerify that your panel accepts QO-style breakers and that the 1-pole, 240V configuration matches the circuit you’re protecting.\u003c\/li\u003e \u003cli\u003eSeat the breaker firmly in the bus bar and secure per the panel manufacturer’s instructions. Follow all applicable electrical codes and safety guidelines.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D QO120EM, you gain a reliable, purpose-built solution for protecting 240-volt circuits in a compatible panel. It’s a practical, ready-to-use component for maintaining safe, efficient residential electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423220781218,"sku":"QO120EM","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-qo120em","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}