{"product_id":"square-d-qou345-45a-240v-3-pole-miniature-circuit-breaker","title":"Square D QOU345 45A 240V 3-pole Miniature Circuit Breaker","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SQUARE D QOU345 is a 3-pole miniature circuit breaker rated at 45 amps and 240 volts AC, designed for panel mount installation in commercial and residential electrical distribution equipment. It provides overcurrent and short-circuit protection for three-phase or multi-wire branch circuits. Box lug terminal connections accept 14 to 2 AWG wire. The QOU345 meets CSA, IEC, UL, and RoHS requirements, making it suitable for a wide range of protected branch circuit applications handled by licensed electricians.\u003c\/p\u003e\n\u003cp\u003eThe QOU345 is rated for use with air conditioning and refrigeration equipment as well as heating systems, making it a common choice for HVAC branch circuit protection. It is appropriate for both light commercial and residential panel installations where a compact, multi-pole breaker is required. The panel mount design integrates directly into compatible load centers and distribution panels.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e45-amp trip rating with 240 VAC operating voltage\u003c\/li\u003e\n  \u003cli\u003e3-pole configuration for multi-wire branch circuit protection\u003c\/li\u003e\n  \u003cli\u003eBox lug terminals accept 14 to 2 AWG conductors\u003c\/li\u003e\n  \u003cli\u003ePanel mount design for direct load center installation\u003c\/li\u003e\n  \u003cli\u003eRated for air conditioning, refrigeration, and heating equipment circuits\u003c\/li\u003e\n  \u003cli\u003eCertified to CSA, IEC, UL, and RoHS standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for use with air conditioning and refrigeration equipment and heating systems. Designed as a panel mount miniature circuit breaker for compatible Square D load centers and distribution panels that accept QOU-series breakers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the panel and verify zero voltage with a meter before handling or installing the breaker. Confirm that conductor sizing matches the 14 to 2 AWG terminal range and that the load center is rated to accept QOU-series breakers before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 45 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 240 VAC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: 14 to 2 AWG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Connection Type\u003c\/strong\u003e: Box Lugs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Panel Mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3.6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4.7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: CSA, IEC, RoHS Compliant, UL Listed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SQUARE D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: QOU345\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHNEIDER ELECTRIC","offers":[{"title":"Default Title","offer_id":51542744662322,"sku":"QOU345","price":440.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/57b23273d0d44deb8e290ceac1e96f97_573be010-1663-48d9-8307-b74820438a87.jpg?v=1785905993","url":"https:\/\/voomisupply.com\/products\/square-d-qou345-45a-240v-3-pole-miniature-circuit-breaker","provider":"Voomi Supply","version":"1.0","type":"link"}