{"product_id":"square-d-qob3110vh-110a-240v-3-pole-bolt-on-circuit-breaker","title":"Square D QOB3110VH - 110 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB3110VH is a 110 A, 240 V, 3-pole bolt-on molded case circuit breaker engineered for reliable branch circuit protection in panelboards and load centers. Designed to endure demanding environments, this unit delivers steadfast overcurrent and short-circuit protection where it matters most—from home electrical upgrades to light commercial installations.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey features that set this breaker apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection for long-term performance in panels and enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection, responding promptly to overloads and short circuits to safeguard wiring and devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is crafted to fit with matching Square D load centers and panelboards, ensuring dependable integration and electrical balance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial circuits that require robust 3-pole 240 V protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\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 QOB3110VH\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 110 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\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\u003ePrimary use:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker matters for your electrical system\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you need dependable protection for 240 V circuits, the QOB3110VH combines mechanical robustness with precise trip behavior. The bolt-on design minimizes connection loosening in vibration-prone installations, so you can count on consistent performance in equipment rooms, service panels, and subpanels. The thermal-magnetic trip unit shields conductors and devices from damage by clearing faults quickly and predictably, reducing nuisance trips while maintaining safety margins for motor loads and lighting circuits.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing breakers in Square D panelboards and load centers that require a 3-pole, 110 A protection device.\u003c\/li\u003e \u003cli\u003eResidential electrical panels where 240 V distribution serves multi-wire branch circuits or 3-phase equipment in light commercial settings.\u003c\/li\u003e \u003cli\u003eSubpanels in small offices, retail spaces, or workshops with motors, compressors, or HVAC equipment that need reliable short-circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical considerations for installation and care\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure the panelboard is designed for bolt-on breakers of this type and that mounting hardware is tightened to the manufacturer’s specifications to maintain a solid bus connection.\u003c\/li\u003e \u003cli\u003eVerify system voltage and load requirements align with the 240 V, 3-pole configuration to prevent mismatches and ensure full protection coverage.\u003c\/li\u003e \u003cli\u003eUse as part of a comprehensive protection strategy that includes properly rated conductors, enclosure grounding, and surge considerations for sensitive equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D QOB3110VH, you’re choosing a purpose-built, bolt-on solution that prioritizes secure electrical connections, precise protection, and compatibility with trusted Square D panel systems. It’s a thoughtful choice for delivering reliable 110 A, 240 V, 3-pole protection in modern residential and light commercial electrical layouts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355416088738,"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_029552f9-5faa-4df6-8efe-5fb657a1499d.png?v=1764691972","url":"https:\/\/www.ampstate.com\/products\/square-d-qob3110vh-110a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}