{"product_id":"square-d-qo220em","title":"Square D QO220EM 20A 2-Pole 240 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QO220EM 20A 2-Pole 240V Circuit Breaker, a precise, reliable safeguard for your 240-volt branch circuits. With a 20-amp rating and a true two-pole design, this part ensures both hot legs disconnect together during an overcurrent event, promoting safer operation and easier panel maintenance. Part Number QO220EM, this breaker is built to integrate seamlessly into Square D QO style panels for quick, drop-in replacement and consistent performance.\u003c\/p\u003e \u003ch2\u003eKey features that matter\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePole configuration:\u003c\/strong\u003e 2-pole breaker for simultaneous disconnection of both live conductors\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V, suitable for common 240V circuits\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e QO family design, optimized for Square D panels and reliable plug-in operation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart specificity:\u003c\/strong\u003e Exact replacement with Part Number QO220EM ensures proper fit and electrical characteristics\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eReal-world applications\u003c\/h2\u003e\n\u003cp\u003eThis 20A, 2-pole 240V circuit breaker is ideal for protecting higher-power residential or light commercial circuits. Use cases include\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAir conditioning condensers and heat pumps\u003c\/li\u003e \u003cli\u003eElectric water heaters and certain space heating circuits\u003c\/li\u003e \u003cli\u003e240V receptacle circuits for large appliances and specialty equipment\u003c\/li\u003e \u003cli\u003eHVAC control and other equipment where reliable, dual-leg protection is essential\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose the QO220EM\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit for Square D panels:\u003c\/strong\u003e Designed to work with QO-series panels, ensuring a consistent magnetic trip response and straightforward installation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear protection for dual-leg circuits:\u003c\/strong\u003e By tripping both poles together, it prevents hazardous imbalances and reduces wiring stress\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, code-aligned safeguarding:\u003c\/strong\u003e Built to respond quickly to overcurrent conditions, helping prevent electrical fires and equipment damage on 240V systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical installation tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with QO220EM before installing; use in appropriate QO-type panels\u003c\/li\u003e \u003cli\u003eOnly perform wiring with the main power safely de-energized and by following all local electrical codes\u003c\/li\u003e \u003cli\u003eConsider labeling the circuit clearly after replacement to make future servicing straightforward\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Square D QO220EM 20A 2-Pole 240V Circuit Breaker for dependable, two-line protection on 240V circuits, with a precise fit that minimizes downtime and ensures reliable electrical performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423395401890,"sku":"QO220EM","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-qo220em","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}