{"product_id":"square-d-qob170-70a-120v-1-pole-bolt-on-circuit-breaker","title":"Square D QOB170 - 70 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eProtect essential circuits with precision and confidence using the Square D QOB170 70A, 120V, 1-Pole Bolt-On Circuit Breaker. Engineered for dependable branch circuit overcurrent and short-circuit protection, this molded‑case breaker is designed to stand up to the demands of residential, commercial, and light industrial installations while delivering consistent performance in panelboards and loadcenters.\u003c\/p\u003e \u003ch3\u003eWhy the QOB170 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration‑resistant bus connection, reducing the risk of loose connections that can lead to nuisance trips or arcing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying temperatures and loads, with rapid magnetic response to short circuits for immediate protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 70A, 120V\u003c\/strong\u003e configuration is ideal for protecting single‑phase branch circuits that demand higher current capacity without compromising safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures reliable fit and coordination with matching Square D load centers and panelboards for seamless replacements or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable molded‑case construction\u003c\/strong\u003e built to endure the rigors of everyday electrical service in diverse environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho is this for?\u003c\/h3\u003e\n\u003cp\u003ePerfect for electricians and facilities managers tackling panelboard maintenance, electrical renovations, or new installations where a robust 70A protection device is needed. Suitable for residential subpanels, commercial distribution, and light industrial applications where dependable overcurrent and short‑circuit protection matters most.\u003c\/p\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or aging 1‑pole breaker in a panelboard or loadcenter that requires 70A protection at 120V.\u003c\/li\u003e \u003cli\u003eFeeding higher‑demand branch circuits for workshops, garages, or HVAC controls while preserving system safety.\u003c\/li\u003e \u003cli\u003eInstalling in new or upgraded electrical panels where bolt‑on mounting and secure bus connections are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes it different from generic breakers\u003c\/h3\u003e\n\u003cp\u003eThe QOB170 combines \u003cstrong\u003ebolt-on reliability\u003c\/strong\u003e with a \u003cstrong\u003ethermal-magnetic trip system\u003c\/strong\u003e tuned for predictable protection, all from a trusted Square D lineage. Its \u003cstrong\u003ematching OEM compatibility\u003c\/strong\u003e means fewer fitment surprises and smoother panel integration, helping you achieve code‑compliant, long‑lasting protection without aftermarket guesswork.\u003c\/p\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\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 QOB170\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 70A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\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 \u003cp\u003eChoose the Square D QOB170 for a dependable, code‑ready solution that protects your circuits with precision while delivering a straightforward, long‑lasting installation experience. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355408912546,"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_a2c57791-5912-428e-bc79-1650c830638f.png?v=1764691916","url":"https:\/\/www.ampstate.com\/products\/square-d-qob170-70a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}