{"product_id":"square-d-qob31001021-100a-3-pole-thermal-magnetic-circuit-breaker-bolt-on-mount-240v","title":"Square D QOB31001021 100A 3-Pole Thermal Magnetic Circuit Breaker – Bolt-On Mount – 240V","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a24657d-22bc-8324-923d-20db3b6f8323-2\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a24657d-22bc-8324-923d-20db3b6f8323-2\" data-turn-id-container=\"request-6a24657d-22bc-8324-923d-20db3b6f8323-2\" data-testid=\"conversation-turn-102\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"eb8bfe13-b14a-441d-ba44-84498c9f18bb\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"92\" data-end=\"564\"\u003eThe Square D QOB31001021 Molded Case Circuit Breaker is a heavy-duty overcurrent protection device designed for commercial, industrial, and OEM electrical distribution systems. As part of the Square D QOB Series, this thermal-magnetic circuit breaker provides dependable long-time overload and instantaneous short-circuit protection. Its bolt-on mounting configuration ensures a secure and reliable connection in compatible Square D panelboards and distribution equipment.\u003c\/p\u003e\n\u003ch2 data-section-id=\"k6a4r\" data-start=\"566\" data-end=\"587\"\u003eVoltage and Rating\u003c\/h2\u003e\n\u003cul data-start=\"588\" data-end=\"706\"\u003e\n\u003cli data-section-id=\"alkc1u\" data-start=\"588\" data-end=\"614\"\u003eCurrent Rating: 100 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"e6szip\" data-start=\"615\" data-end=\"645\"\u003eVoltage Rating: 240 Volts AC\u003c\/li\u003e\n\u003cli data-section-id=\"nh2u98\" data-start=\"646\" data-end=\"662\"\u003ePhase: 3-Phase\u003c\/li\u003e\n\u003cli data-section-id=\"15fwnvb\" data-start=\"663\" data-end=\"706\"\u003eInterrupting Capacity: 10 kAIC at 240V AC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"rkota4\" data-start=\"708\" data-end=\"729\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cul data-start=\"730\" data-end=\"966\"\u003e\n\u003cli data-section-id=\"q9qzjg\" data-start=\"730\" data-end=\"747\"\u003eBrand: Square D\u003c\/li\u003e\n\u003cli data-section-id=\"2c4uun\" data-start=\"748\" data-end=\"782\"\u003eManufacturer: Schneider Electric\u003c\/li\u003e\n\u003cli data-section-id=\"6sydwi\" data-start=\"783\" data-end=\"810\"\u003eModel Number: QOB31001021\u003c\/li\u003e\n\u003cli data-section-id=\"1ly3dv2\" data-start=\"811\" data-end=\"831\"\u003eSeries: QOB Series\u003c\/li\u003e\n\u003cli data-section-id=\"ljdll7\" data-start=\"832\" data-end=\"882\"\u003eProduct Type: Molded Case Circuit Breaker (MCCB)\u003c\/li\u003e\n\u003cli data-section-id=\"5p1llh\" data-start=\"883\" data-end=\"908\"\u003eNumber of Poles: 3-Pole\u003c\/li\u003e\n\u003cli data-section-id=\"av5m2m\" data-start=\"909\" data-end=\"933\"\u003eMounting Type: Bolt-On\u003c\/li\u003e\n\u003cli data-section-id=\"1o7ufcn\" data-start=\"934\" data-end=\"966\"\u003eBreaker Type: Thermal Magnetic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"968\" data-end=\"995\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul data-start=\"996\" data-end=\"1256\"\u003e\n\u003cli data-section-id=\"jza22\" data-start=\"996\" data-end=\"1045\"\u003eTrip Function: LI (Long-Time and Instantaneous)\u003c\/li\u003e\n\u003cli data-section-id=\"1lmn407\" data-start=\"1046\" data-end=\"1141\"\u003eProtection Type:\n\u003cul data-start=\"1067\" data-end=\"1141\"\u003e\n\u003cli data-section-id=\"1nrva41\" data-start=\"1067\" data-end=\"1098\"\u003eLong-Time Overload Protection\u003c\/li\u003e\n\u003cli data-section-id=\"1o88d4v\" data-start=\"1101\" data-end=\"1141\"\u003eInstantaneous Short-Circuit Protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5trvgl\" data-start=\"1142\" data-end=\"1168\"\u003eConnection Type: Bolt-On\u003c\/li\u003e\n\u003cli data-section-id=\"njgqs1\" data-start=\"1169\" data-end=\"1206\"\u003eInterrupt Rating: 10 kAIC @ 240V AC\u003c\/li\u003e\n\u003cli data-section-id=\"12z482d\" data-start=\"1207\" data-end=\"1256\"\u003eOperating Mechanism: Thermal-Magnetic Trip Unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"14b1stp\" data-start=\"1258\" data-end=\"1282\"\u003eDimensions and Weight\u003c\/h2\u003e\n\u003cul data-start=\"1283\" data-end=\"1353\"\u003e\n\u003cli data-section-id=\"dtw1oe\" data-start=\"1283\" data-end=\"1300\"\u003eHeight: 2.91 in\u003c\/li\u003e\n\u003cli data-section-id=\"1bkviun\" data-start=\"1301\" data-end=\"1317\"\u003eWidth: 2.99 in\u003c\/li\u003e\n\u003cli data-section-id=\"1e7jleo\" data-start=\"1318\" data-end=\"1334\"\u003eDepth: 3.50 in\u003c\/li\u003e\n\u003cli data-section-id=\"ms3tw6\" data-start=\"1335\" data-end=\"1353\"\u003eWeight: 1.35 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1xcjw99\" data-start=\"1355\" data-end=\"1379\"\u003eFeatures and Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1380\" data-end=\"1782\"\u003e\n\u003cli data-section-id=\"1gre242\" data-start=\"1380\" data-end=\"1438\"\u003eProvides reliable overload and short-circuit protection.\u003c\/li\u003e\n\u003cli data-section-id=\"1t99ukb\" data-start=\"1439\" data-end=\"1522\"\u003eBolt-on mounting ensures secure installation and improved electrical reliability.\u003c\/li\u003e\n\u003cli data-section-id=\"eng9l4\" data-start=\"1523\" data-end=\"1595\"\u003eThermal-magnetic trip technology offers dependable circuit protection.\u003c\/li\u003e\n\u003cli data-section-id=\"7mrk6w\" data-start=\"1596\" data-end=\"1649\"\u003eCompact design allows efficient use of panel space.\u003c\/li\u003e\n\u003cli data-section-id=\"1mx0x02\" data-start=\"1650\" data-end=\"1710\"\u003eSuitable for commercial, industrial, and OEM applications.\u003c\/li\u003e\n\u003cli data-section-id=\"7484zk\" data-start=\"1711\" data-end=\"1782\"\u003eManufactured to Schneider Electric quality and performance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"mu966k\" data-start=\"1784\" data-end=\"1799\"\u003eApplications\u003c\/h2\u003e\n\u003cul data-start=\"1800\" data-end=\"2003\"\u003e\n\u003cli data-section-id=\"173pm5h\" data-start=\"1800\" data-end=\"1843\"\u003eCommercial Electrical Distribution Panels\u003c\/li\u003e\n\u003cli data-section-id=\"eo12q5\" data-start=\"1844\" data-end=\"1871\"\u003eIndustrial Control Panels\u003c\/li\u003e\n\u003cli data-section-id=\"pp8cxx\" data-start=\"1872\" data-end=\"1887\"\u003eOEM Equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1i323a8\" data-start=\"1888\" data-end=\"1915\"\u003eMotor Protection Circuits\u003c\/li\u003e\n\u003cli data-section-id=\"zwhbd8\" data-start=\"1916\" data-end=\"1943\"\u003eBranch Circuit Protection\u003c\/li\u003e\n\u003cli data-section-id=\"5xdhvf\" data-start=\"1944\" data-end=\"1972\"\u003ePower Distribution Systems\u003c\/li\u003e\n\u003cli data-section-id=\"mioo3r\" data-start=\"1973\" data-end=\"2003\"\u003ePanelboards and Switchboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"we2dfi\" data-start=\"2005\" data-end=\"2020\"\u003eProduct Data\u003c\/h2\u003e\n\u003cul data-start=\"2021\" data-end=\"2163\"\u003e\n\u003cli data-section-id=\"2c4uun\" data-start=\"2021\" data-end=\"2055\"\u003eManufacturer: Schneider Electric\u003c\/li\u003e\n\u003cli data-section-id=\"q9qzjg\" data-start=\"2056\" data-end=\"2073\"\u003eBrand: Square D\u003c\/li\u003e\n\u003cli data-section-id=\"10ys3pf\" data-start=\"2074\" data-end=\"2094\"\u003eFamily: QOB Series\u003c\/li\u003e\n\u003cli data-section-id=\"12h9x22\" data-start=\"2095\" data-end=\"2121\"\u003ePart Number: QOB31001021\u003c\/li\u003e\n\u003cli data-section-id=\"1rxx36p\" data-start=\"2122\" data-end=\"2163\"\u003eCategory: Molded Case Breakers \/ 3-Pole\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"r2uxc2\" data-start=\"2165\" data-end=\"2183\"\u003eProduct Summary\u003c\/h2\u003e\n\u003cul data-start=\"2184\" data-end=\"2599\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"q5o1ad\" data-start=\"2184\" data-end=\"2292\"\u003e\n\u003cstrong data-start=\"2186\" data-end=\"2203\"\u003eProduct Name:\u003c\/strong\u003e Square D QOB31001021 100A 3-Pole Thermal Magnetic Circuit Breaker – Bolt-On Mount – 240V\u003c\/li\u003e\n\u003cli data-section-id=\"1h7yp2k\" data-start=\"2293\" data-end=\"2315\"\u003eCurrent Rating: 100A\u003c\/li\u003e\n\u003cli data-section-id=\"181gcmt\" data-start=\"2316\" data-end=\"2341\"\u003eVoltage Rating: 240V AC\u003c\/li\u003e\n\u003cli data-section-id=\"7wt7j8\" data-start=\"2342\" data-end=\"2352\"\u003ePoles: 3\u003c\/li\u003e\n\u003cli data-section-id=\"av5m2m\" data-start=\"2353\" data-end=\"2377\"\u003eMounting Type: Bolt-On\u003c\/li\u003e\n\u003cli data-section-id=\"mc7wo4\" data-start=\"2378\" data-end=\"2408\"\u003eProtection: Thermal Magnetic\u003c\/li\u003e\n\u003cli data-section-id=\"1qvh1my\" data-start=\"2409\" data-end=\"2458\"\u003eTrip Function: Long-Time and Instantaneous (LI)\u003c\/li\u003e\n\u003cli data-section-id=\"njgqs1\" data-start=\"2459\" data-end=\"2496\"\u003eInterrupt Rating: 10 kAIC @ 240V AC\u003c\/li\u003e\n\u003cli data-section-id=\"ms3tw6\" data-start=\"2497\" data-end=\"2515\"\u003eWeight: 1.35 lbs\u003c\/li\u003e\n\u003cli data-section-id=\"cgeaeg\" data-start=\"2516\" data-end=\"2599\" data-is-last-node=\"\"\u003eApplication: Commercial and industrial power distribution and circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"NEW","offer_id":48538027163897,"sku":"QOB31001021","price":488.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/QOB3501021-new-1_c29c06d0-6d75-4d68-8b46-93ada68a0c92.jpg?v=1781637129","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-qob31001021-100a-3-pole-thermal-magnetic-circuit-breaker-bolt-on-mount-240v","provider":"My Circuit Breakers","version":"1.0","type":"link"}