{"product_id":"square-d-qob220-20a-240v-2-pole-bolt-on-circuit-breaker","title":"Square D QOB220 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB220 is a 20A, 240V, 2-pole bolt-on molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. Its bolt-on mounting delivers a rigid, vibration-resistant connection, making it a trusted choice for installations where panel integrity matters as much as protection.\u003c\/p\u003e \u003ch2\u003eWhat makes the QOB220 unique\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e — creates a solid bus connection that stays tight through vibration and arcing, minimizing nuisance trips and improving long-term reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — combines precise thermal overload protection with instantaneous magnetic trip for swift response to short circuits, delivering stable, repeatable protection characteristics.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact compatibility\u003c\/strong\u003e — crafted to pair with matching OEM load centers and panelboards, ensuring seamless integration in standard electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile 2-pole design\u003c\/strong\u003e — protects 240V circuits with simultaneous disconnection of both ungrounded conductors, enhancing safety in shared-neutral and multi-wire branch configurations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal for residential, commercial, and light industrial use\u003c\/h2\u003e\n\u003cp\u003eWhether you're wiring a home service panel, a small commercial distribution panel, or a light industrial control cabinet, the QOB220 delivers reliable branch circuit overcurrent and short-circuit protection. It’s especially well-suited for circuits that require robust protection in environments where vibration or movement might challenge less-secure mounting methods.\u003c\/p\u003e \u003ch2\u003ePractical use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eSubpanels in homes for dedicated 240V circuits like clothes dryers or certain HVAC components that fit a 20A load profile.\u003c\/li\u003e \u003cli\u003eCommercial load centers where compact, reliable protection is needed for lighting, receptacle banks, or small motor-driven equipment.\u003c\/li\u003e \u003cli\u003eLight industrial panels where vibration is a consideration and a secure bolt-on connection helps prevent connection loosening over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QOB220\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Square D QOB220 for a dependable, OEM-compatible solution that combines secure installation with precise protection. It’s a practical, long-term choice for safeguarding electrical systems across a range of residential, commercial, and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355410616482,"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_f3332ef8-6969-4655-b21b-47c045aac59d.png?v=1764691930","url":"https:\/\/www.ampstate.com\/products\/square-d-qob220-20a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}