{"product_id":"square-d-qob3501021-circuit-breaker-50a-240v-3-pole","title":"Square D QOB3501021 Circuit Breaker 50A 240V 3 Pole","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SQUARE D QOB3501021 is a 3-pole, bolt-on miniature circuit breaker rated for 50 amps at 240 VAC. It provides overcurrent and short-circuit protection in panel applications requiring a bolt-on mount style. Box lug terminals accept wire from 8 to 2 AWG, making it suitable for branch circuit and feeder applications. The breaker is compatible with shunt trip configurations operating at 120, 208, or 240 VAC. Licensed electricians install this breaker during new construction, panel upgrades, or equipment replacement. It carries UL Listed and CSA certifications and meets RoHS compliance standards.\u003c\/p\u003e\u003cp\u003eThis circuit breaker is used in commercial and residential electrical distribution panels where a 3-pole bolt-on breaker is required. Its 50-amp rating suits HVAC equipment, large appliances, and other 240-volt three-phase or multi-wire branch circuits. The box lug terminal design provides a secure, vibration-resistant connection. For use with shunt trip accessories rated at 120, 208, or 240 VAC where remote trip capability is needed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e50-amp overcurrent protection at 240 VAC\u003c\/li\u003e\n\u003cli\u003e3-pole configuration for three-phase or multi-wire branch circuits\u003c\/li\u003e\n\u003cli\u003eBolt-on mount for secure panel installation\u003c\/li\u003e\n\u003cli\u003eBox lug terminals accept 8 to 2 AWG wire\u003c\/li\u003e\n\u003cli\u003eCompatible with shunt trip accessories at 120, 208, or 240 VAC\u003c\/li\u003e\n\u003cli\u003eUL Listed, CSA certified, and RoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with shunt trip accessories rated at 120\/208\/240 VAC. Intended as a bolt-on miniature circuit breaker replacement in compatible Square D QOB-series panelboards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the panel and verify the absence of voltage before handling any breaker or bus connections. Confirm wire gauge is within the 8 to 2 AWG range before terminating at the box lugs. If a shunt trip accessory is being used, verify the control voltage matches the accessory rating before energizing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 50 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: 8 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: Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Use With\u003c\/strong\u003e: Shunt Trip 120\/208\/240 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 3.2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3.7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4.6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.18 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: UL Listed, CSA Certified, RoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: QOB3501021\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHNEIDER ELECTRIC","offers":[{"title":"Default Title","offer_id":51542744531250,"sku":"QOB3501021","price":601.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c522699e4bec1679005208269fcc1e7d_80050095-31ed-41c7-bfab-2652c915a3ee.jpg?v=1785905987","url":"https:\/\/voomisupply.com\/products\/square-d-qob3501021-circuit-breaker-50a-240v-3-pole","provider":"Voomi Supply","version":"1.0","type":"link"}