{"product_id":"square-d-qob220swn-20a-2-pole-bolt-on-circuit-breaker","title":"Square D QOB220SWN - 20 A, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D \u003cstrong\u003eQOB220SWN\u003c\/strong\u003e is a \u003cstrong\u003e20 A, 2-pole bolt-on molded case circuit breaker\u003c\/strong\u003e engineered to safeguard panelboards and load centers from overcurrent and short-circuit events. Built for dependable performance across residential, commercial, and light industrial environments, this breaker combines rugged bolt-on mounting with a thermal-magnetic trip unit for stable, repeatable protection you can rely on.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e: a secure, vibration-resistant connection to the bus to maintain consistent electrical contact even in panels exposed to movement or door operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: delivers precise tripping behavior for both overloads and short circuits, helping prevent nuisance trips while ensuring prompt fault interruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility\u003c\/strong\u003e: designed to fit matching Square D OEM load centers and panelboards, simplifying replacement and ensuring coordinated protection with your existing infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile 2-pole, 20A configuration\u003c\/strong\u003e: suitable for 240V circuits and multi-wire branch circuits with shared neutrals in a variety of installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable molded-case construction\u003c\/strong\u003e: robust insulation and enclosure designed to withstand the demands of panel installations in diverse environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eSpecifications at a glance\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart number: QOB220SWN\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 20 A\u003c\/li\u003e \u003cli\u003eNumber of poles: 2\u003c\/li\u003e \u003cli\u003eMounting style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit protection against overcurrent and short circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho this is for\u003c\/strong\u003e: electricians, contractors, and facility managers seeking reliable, easily replaceable protection for panelboards and load centers. It’s ideal for installations requiring a compliant 2-pole 20A device to protect 240V circuits, small motors, lighting, or multi-wire branch circuits in homes, offices, retail spaces, and light industrial settings.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUse cases and practical benefits\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed breaker in Square D panelboards without altering bus connections or panel fittings.\u003c\/li\u003e \u003cli\u003eRetrofit projects where vibration or long-term reliability is a concern, thanks to the secure bolt-on mounting.\u003c\/li\u003e \u003cli\u003eNew installations needing a simple, OEM-compatible solution that preserves consistent trip performance with existing protection schemes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the QOB220SWN, you’re choosing a dependable, purpose-built solution for robust branch circuit protection. Its combination of secure mounting, precise thermal-magnetic protection, and OEM-compatible design helps shorten installation time, reduce maintenance concerns, and keep critical circuits safeguarded across the life of your panel system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355411206306,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_fe824e18-3143-423f-9827-7753d905ba88.png?v=1764691934","url":"https:\/\/www.ampstate.com\/products\/square-d-qob220swn-20a-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}