{"product_id":"square-d-qo350vh-50a-240v-3-pole-plug-in-circuit-breaker","title":"Square D QO350VH - 50 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D \u003cstrong\u003eQO350VH\u003c\/strong\u003e—a reliable, plug-in \u003cstrong\u003e50A\u003c\/strong\u003e 240V \u003cstrong\u003e3-pole molded case circuit breaker\u003c\/strong\u003e designed to protect your panelboards and load centers from overcurrent and short circuits. Built for quick, field-friendly installation, this breaker minimizes downtime while delivering consistent, dependable performance across the life of the electrical system.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e: streamlined installation and easy replacement keeps projects on schedule and reduces panel downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: delivers stable, repeatable protection by combining overload and short-circuit protection in one compact mechanism.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole, 240V configuration\u003c\/strong\u003e: ideal for 3-phase applications or multi-pole disconnects that require simultaneous tripping of all poles.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e50 amp, 240 volt rating\u003c\/strong\u003e: provides strong protection for branch circuits serving heavy loads and equipment with high inrush characteristics.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e: designed to pair with matching Square D OEM load centers and panelboards for clean fits and reliable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple settings\u003c\/strong\u003e: suitable for residential, commercial, and light industrial applications where robust protection and easy maintenance matter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis plug-in molded case breaker is purpose-built to guard electrical circuits against overcurrent events while simplifying upgrades and repairs in established panels. The combination of a quick-connect design, a precise thermal-magnetic trip, and OEM compatibility translates to fewer service calls, faster upgrades, and sustained system uptime.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: \u003cstrong\u003eSquare D\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePart Number: \u003cstrong\u003eQO350VH\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eType: \u003cstrong\u003eThermal-magnetic molded case circuit breaker\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eAmperage Rating: \u003cstrong\u003e50A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage Rating: \u003cstrong\u003e240V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eNumber of Poles: \u003cstrong\u003e3\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eMounting Style: \u003cstrong\u003ePlug-in\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eApplication: \u003cstrong\u003eBranch circuit overcurrent and short-circuit protection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho should consider this breaker?\u003c\/strong\u003e Electricians, facilities managers, and contractors who work with Square D panelboards or load centers will appreciate the seamless fit and predictable performance. It’s an excellent choice when you need a dependable, easy-to-install solution that aligns with existing \u003cem\u003eQO\u003c\/em\u003e systems and keeps critical circuits safeguarded.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUse cases and practical tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEmergency electrical rooms and service panels in small-to-mid sized commercial spaces often benefit from rapid replacement with a plug-in breaker to minimize downtime.\u003c\/li\u003e \u003cli\u003eNew installations or panel upgrades where 3-phase or multi-pole protection is required can rely on the 3-pole design to ensure all poles trip together for enhanced safety.\u003c\/li\u003e \u003cli\u003eHouseholds upgrading to more robust protection for heavy appliances or dedicated circuits can pair this 50A unit with compatible OEM panelboards for a clean, code-compliant solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355405406370,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-qo350vh-50-a-240-v-3-pole-plug-in-circuit-breaker-ampstate-587.webp?v=1788755092","url":"https:\/\/www.ampstate.com\/products\/square-d-qo350vh-50a-240v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}