{"product_id":"square-d-qob320vh-20a-240v-3-pole-bolt-on-circuit-breaker","title":"Square D QOB320VH - 20 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB320VH is a 20A, 240V, 3-pole bolt-on molded-case circuit breaker designed to protect your panelboard or load center from overcurrent and short-circuit events. Built for durable, long-term performance, this breaker delivers reliable protection for demanding electrical systems in a compact, easy-to-install package.\u003c\/p\u003e \u003ch3\u003eWhy this breaker 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 that stays put even in environments with vibration or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines a responsive thermal element for overload protection with a fast magnetic trip for short circuits, delivering stable, repeatable protection performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is designed to pair with matching Square D OEM load centers and panelboards, minimizing mismatch risks and simplifying stocking and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cp\u003eDesigned for residential, commercial, and light industrial use, the QOB320VH is ideal for protecting 3-phase loads in panelboards and load centers. Use cases include safeguarding three-phase motors, HVAC equipment, pumps, compressors, and other critical branch circuits where reliable protection and a secure mounting method are essential.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\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 QOB320VH\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 \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eChoose the QOB320VH for panelboards and load centers that list bolt-on breakers in the QOB family to ensure compatibility and optimal performance.\u003c\/li\u003e \u003cli\u003eFor installations that require secure performance in vibration-prone environments, the bolt-on design helps maintain a solid bus connection over time.\u003c\/li\u003e \u003cli\u003ePlan replacements or upgrades in spaces where three-pole protection is needed for 240V, three-phase loads, and verify that the panelboard rating accommodates this breaker type.\u003c\/li\u003e \u003cli\u003eAlways follow local electrical codes and the panelboard manufacturer’s installation instructions when adding or replacing breakers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eSecure, reliable protection for your 3-phase circuits starts with the Square D QOB320VH. Available from AmpState, this genuine Square D component combines precise protection with OEM-accurate compatibility to keep your electrical system running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355418677410,"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_7a78169d-f29d-4531-a925-38ab9e43b5d3.png?v=1764691978","url":"https:\/\/www.ampstate.com\/products\/square-d-qob320vh-20a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}