{"product_id":"square-d-qob320epd-20a-240v-3-pole-bolt-on-circuit-breaker","title":"Square D QOB320EPD - 20 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB320EPD is a 20A, 240V, 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit protection for panelboards and load centers. Its robust bolt-on mounting creates a secure, vibration-resistant connection that stays tight in demanding installations, reducing the risk of loose bus connections over time.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e ensures a rigid, vibration-resistant bus connection for reliable long-term performance in commercial, industrial, and residential panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection for both overloads and short circuits, delivering fast, predictable responses when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-fit compatibility\u003c\/strong\u003e is designed to pair with matching Square D load centers and panelboards, making replacement straightforward without compromising safety or performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole, 240V protection\u003c\/strong\u003e ideal for residential, commercial, and light industrial circuits that require protection across three hot legs or three-phase equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat this means in practical terms\u003c\/h3\u003e \u003cp\u003eUse the QOB320EPD to safeguard circuits in main distribution panels, subpanels, or load centers where reliable 20A protection across three poles is needed. It’s especially well-suited for environments with equipment that can introduce vibration, such as HVAC units, pumps, or three-phase motors, where a secure connection and precise trip behavior are crucial for uptime and safety.\u003c\/p\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QOB320EPD\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\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 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\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\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355416416418,"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_12e97001-f3a3-492e-be8f-f77752c8d19c.png?v=1764691976","url":"https:\/\/www.ampstate.com\/products\/square-d-qob320epd-20a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}