{"product_id":"square-d-qda321756-circuit-breaker","title":"Square D | QDA321756 | Circuit Breaker | 175A | 3-Pole | 240V | Plug-In","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QDA321756 Circuit Breaker—an essential plug-in protection solution engineered for reliability in maintenance, retrofit, and replacement projects. With a 175A rating, 3-pole configuration, and a 240V operating profile, this unit delivers dependable overcurrent protection for critical electrical circuits in commercial and industrial settings.\u003c\/p\u003e \u003cp\u003eDesigned for exact-spec compatibility, this plug-in breaker is ideal when you need a precise match for panels that support QDA-series devices. Before ordering, confirm fit and ratings, and use the part number QDA321756 as your primary reference to ensure seamless interchangeability with your existing Square D setup.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 175A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 240V\u003c\/li\u003e \u003cli\u003eConnection: Plug-In\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets this breaker apart\u003c\/h3\u003e\n\u003cp\u003eExact-match compatibility is at the core of safe, code-compliant protection. The QDA321756 is designed to integrate smoothly with Square D panels built for plug-in QDA devices, minimizing downtime during maintenance and retrofit. The 3-pole configuration ensures protection across multiple conductors, making it suitable for multi-wire or three-phase applications where consistent protection matters.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance outages requiring a direct, spec-matched replacement\u003c\/li\u003e \u003cli\u003eRetrofits to upgrade protection on high-demand circuits\u003c\/li\u003e \u003cli\u003eReplacement in industrial or commercial installations that demand 175A, 3-pole, 240V plug-in protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify the panel model and the breaker's fit ratings before purchase.\u003c\/li\u003e \u003cli\u003ePower down the system and follow local electrical codes during replacement.\u003c\/li\u003e \u003cli\u003eKeep the part number QDA321756 handy as your primary compatibility reference throughout service and ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427411382434,"sku":"QDA321756","price":1721.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/square-d-qda321756-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}