{"product_id":"industrial-qc4100h","title":"Industrial QC4100H 100A 4-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for demanding industrial environments, the QC4100H 100A 4-Pole 240 V Circuit Breaker delivers dependable, coordinated protection for complex electrical systems. Designed as a robust solution for commercial and industrial panels, this part ensures rapid isolation of faults while keeping your operations running smoothly.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 100 A — trusted protection for medium-to-heavy load circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4-pole configuration — ideal for three-phase systems with a neutral, enabling simultaneous disconnection of all conductors.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V — suitable for typical industrial distribution networks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QC4100H — a precise replacement or upgrade option for compatible panels and MCCs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy the QC4100H is the right choice for your system\u003c\/h2\u003e\n\u003cp\u003eIn busy industrial settings, protecting motors, conveyors, presses, and other heavy loads requires a breaker built to endure continuous use. The QC4100H pairs a sturdy build with a four-pole design that ensures all live conductors trip together, minimizing the risk of residual current or unbalanced faults that can damage equipment or create unsafe conditions.\u003c\/p\u003e \u003ch3\u003eKey benefits you’ll notice\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eComprehensive 3-phase protection with neutral:\u003c\/strong\u003e The 4-pole layout handles three hot lines plus a neutral, delivering coordinated shutdown across the entire circuit when a fault occurs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFast, reliable tripping:\u003c\/strong\u003e Built to interrupt fault currents quickly, reducing damage to connected motors and drives and helping to minimize downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModular compatibility:\u003c\/strong\u003e Seamlessly integrates with standard industrial panels, switchgear, and motor control centers that support QC4100H-type devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLong-term reliability:\u003c\/strong\u003e Industrial-grade design optimized for continuous operation in harsh environments, with design features that stand up to vibration, dust, and temperature variations common in factories and distribution centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMotor control centers and industrial switchboards that power heavy machinery and assembly lines.\u003c\/li\u003e \u003cli\u003eDistribution panels in manufacturing facilities requiring reliable protection for three-phase loads with a neutral.\u003c\/li\u003e \u003cli\u003eCritical infrastructure setups where coordinated disconnection of all phases minimizes fault propagation and equipment damage.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and practical considerations\u003c\/h2\u003e\n\u003cp\u003eWhen selecting a 100 A, 4-pole, 240 V circuit breaker like the QC4100H, ensure compatibility with your panel or MCC’s bus rating and enclosure dimensions. Verify that conductors are appropriately sized for 100 A protection, and follow the manufacturer’s torque specifications and wiring guidelines during installation. Regular inspections and preventive maintenance—performed by qualified personnel—help sustain optimal performance and early fault detection.\u003c\/p\u003e \u003ch2\u003eComparison at a glance\u003c\/h2\u003e\n\u003cp\u003eCompared to lower-pole configurations, a 4-pole breaker provides complete equal-tripping of all conductors in a 3-phase four-wire setup, improving safety and reducing insulation stress on downstream equipment. In scenarios where a neutral or return path is present, this design offers more reliable protection than multi-pole breakers with fewer poles.\u003c\/p\u003e \u003ch2\u003ePractical tips for maximizing performance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePair the QC4100H with properly rated feeders and conductors to maintain full protection without nuisance trips.\u003c\/li\u003e \u003cli\u003eLabel circuits clearly in the panel to reflect the 4-pole, 240 V configuration for maintenance clarity and compliance.\u003c\/li\u003e \u003cli\u003eIntegrate periodic testing into your maintenance plan to confirm tripping performance and verify panel integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe Industrial QC4100H 100A 4-Pole 240 V Circuit Breaker is a purpose-built solution for reliable, coordinated protection in modern industrial power distribution. It helps you safeguard equipment, reduce downtime, and keep critical processes operating smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Industrial","offers":[{"title":"Default Title","offer_id":46423151935650,"sku":"QC4100H","price":1099.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/industrial-qc4100h-100a-4-pole-240-v-circuit-breaker-721.webp?v=1789275958","url":"https:\/\/www.ampstate.com\/products\/industrial-qc4100h","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}