{"product_id":"thomas-betts-qb50-circuit-breaker","title":"Thomas \u0026 Betts | QB50 | Circuit Breaker | 50A | 120V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Thomas \u0026amp; Betts \u003cstrong\u003eQB50\u003c\/strong\u003e Circuit Breaker—a bolt-on protection solution engineered for reliability in maintenance, retrofit, and replacement projects where exact specifications matter. With a \u003cstrong\u003e50A\u003c\/strong\u003e rating at \u003cstrong\u003e120V\u003c\/strong\u003e, it delivers dependable overcurrent protection while integrating smoothly into compatible panels.\u003c\/p\u003e \u003cp\u003eThe \u003cstrong\u003ebolt-on design\u003c\/strong\u003e provides a secure, vibration-resistant mount, simplifying installation and service calls. This means fewer loosening concerns in demanding environments and quicker field adjustments when your electrical system evolves.\u003c\/p\u003e \u003ch3\u003eWhy the QB50 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact protection specs:\u003c\/strong\u003e 50A, 120V to safeguard high-load circuits and equipment\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting:\u003c\/strong\u003e secure, straightforward installation and reliable performance in busy panels\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference:\u003c\/strong\u003e use the \u003cstrong\u003eQB50\u003c\/strong\u003e part number as your best guide for matching replacements\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready:\u003c\/strong\u003e designed for scenarios where you’re upgrading or refreshing panel protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted brand lineage:\u003c\/strong\u003e backed by Thomas \u0026amp; Betts’ decades of electrical hardware expertise\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to use and install\u003c\/h3\u003e\n\u003cp\u003eBefore you order, \u003cstrong\u003econfirm the fit and ratings\u003c\/strong\u003e for your specific panel. Use the \u003cstrong\u003eQB50\u003c\/strong\u003e reference to ensure compatibility with your bus configuration and interrupting requirements. This breaker is intended for bolt-on installations in compatible enclosures, delivering dependable protection without the guesswork of mismatched components.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects where existing protection needs an exact, spec-matched replacement\u003c\/li\u003e \u003cli\u003eMaintenance schedules in commercial or industrial electrical rooms requiring reliable 50A protection\u003c\/li\u003e \u003cli\u003ePanel upgrades that demand a \u003cstrong\u003ebolt-on\u003c\/strong\u003e 50A, 120V solution for high-demand circuits\u003c\/li\u003e \u003cli\u003eStock material for service technicians who rely on the QB50 for rapid field replacements\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the \u003cstrong\u003eQB50\u003c\/strong\u003e means aligning with precise electrical specs and mounting requirements. It’s a deliberate, field-tested component designed to minimize downtime and safeguard critical circuits without compromising on ease of installation or performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Thomas \u0026 Betts","offers":[{"title":"Default Title","offer_id":46427408793762,"sku":"QB50","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/thomas-betts-qb50-circuit-breaker-50a-120v-bolt-976.webp?v=1789718411","url":"https:\/\/www.ampstate.com\/products\/thomas-betts-qb50-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}