{"product_id":"square-d-qob31001021-100a-3p-240v-circuit-breaker","title":"Square D QOB31001021 100A 3P 240V Circuit Breaker, QO, Bolt-On, Shunt Trip | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D QOB31001021, a 3-pole, 100-amp circuit breaker engineered for dependable protection in panelboards, load centers, and electrical distribution systems. Built on the robust QO platform, this unit is designed for bolt-on installation and features a shunt trip for remote, fast tripping when safety or control signals demand it. If you need a reliable, direct-part-number match for critical panels, this breaker is a precise fit.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cstrong configuration\u003e: QO bolt-on mounting, 3 poles, 100 A, 240 V — a compact, clear specification that suits standard 240 V distribution networks.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShunt Trip\u003c\/strong\u003e: remote tripping capability enables emergency or controlled shutdown from a separate control circuit, enhancing safety and system coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuality and lineage\u003c\/strong\u003e: from Square D, a trusted name in panel protection and electrical distribution, ensuring compatibility with compatible QO platforms.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match\u003c\/strong\u003e: designed for scenarios where exact part-number compatibility matters, reducing guesswork during maintenance or panel builds.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for:\u003c\/strong\u003e maintenance teams, panel builders, and spare inventory where quick, accurate replacement is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKey benefits in real-world use:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eStreamlined panel upgrades and replacements with bolt-on installation that minimizes downtime and wiring changes.\u003c\/li\u003e \u003cli\u003eRemote control capability through the shunt-tripped mechanism supports coordinated safety protocols in distributed systems.\u003c\/li\u003e \u003cli\u003eConsistent 240 V operation across a 3-pole configuration, suitable for multi-phase circuits in commercial and industrial environments.\u003c\/li\u003e \u003cli\u003eReliable performance and compatibility with Square D QO-style panels, helping ensure compliant protection across your electrical distribution network.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecs at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: QOB31001021\u003c\/li\u003e \u003cli\u003eProduct Type: Circuit Breaker\u003c\/li\u003e \u003cli\u003eAmperage: 100 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage: 240 V\u003c\/li\u003e \u003cli\u003eMounting: Bolt-On\u003c\/li\u003e \u003cli\u003eSpecial Feature: Shunt Trip\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAvailable from AmpState. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410914857122,"sku":"QOB31001021","price":1574.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/square-d-qob31001021-100a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}