{"product_id":"square-d-qob2201021-20a-2-pole-bolt-on-circuit-breaker","title":"Square D QOB2201021 - 20 A, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QOB2201021\u003c\/strong\u003e is a 20A, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. With a secure bolt-on mounting, it creates a rigid, vibration-resistant bond to the bus, reducing loosening and travel during operation.\u003c\/p\u003e \u003cp\u003eThe unit features a thermal-magnetic trip system that provides stable, repeatable protection—tripping quickly on short circuits and moderating heat-based overloads for long-term reliability. This means fewer nuisance trips and more consistent electrical performance in dynamic environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e ensures a tight bus connection that resists vibration and movement in busy electrical rooms.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic protection\u003c\/strong\u003e covers both overloads and short circuits for robust safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole, 20A rating\u003c\/strong\u003e provides reliable protection for branch circuits in residential, commercial, and light industrial panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e with matching Square D load centers and panelboards for straightforward replacement and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case construction\u003c\/strong\u003e delivers durable performance in harsh environments, with consistent trip characteristics across temperature ranges.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhere and how you’ll use it\u003c\/h3\u003e \u003cp\u003eIdeal for new installations or panel upgrades where secure, permanent protection is required. This breaker slides into compatible Square D panelboards and load centers, making it a practical choice for electricians, facilities managers, and property maintenance teams concerned with reliability and safety.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eResidential service panels requiring reliable 20A protection on critical circuits like lighting, outlets, or small appliance branches.\u003c\/li\u003e \u003cli\u003eCommercial spaces with light loads and moderate electrical demand, where a compact, bolt-on 2-pole breaker helps keep panel configurations neat and serviceable.\u003c\/li\u003e \u003cli\u003eLight industrial environments needing dependable short-circuit protection without sacrificing install ease.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e: Manufacturer — Square D; Part Number — QOB2201021; Type — Thermal-magnetic molded case circuit breaker; Poles — 2; Amperage — 20A; Mounting — Bolt-on; Application — Branch circuit overcurrent and short-circuit protection.\u003c\/p\u003e \u003cp\u003eBy choosing the Square D QOB2201021, you’re opting for a proven protection device that aligns with OEM equipment, supports straightforward maintenance, and helps maintain electrical system integrity across a range of settings. Trust AmpState to provide genuine Square D components and dependable after-sales support.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355410682018,"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_085efc41-1b72-4ba1-a44c-abc3862367e3.png?v=1764691931","url":"https:\/\/www.ampstate.com\/products\/square-d-qob2201021-20a-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}