{"product_id":"5x21","title":"Siemens 5X21 - Circuit Breaker","description":"\u003cdiv\u003e\n\u003cstrong\u003eSiemens 5X21 Circuit Breaker\u003c\/strong\u003e delivers dependable overcurrent protection in demanding electrical systems. Built to withstand tough industrial and commercial environments, this breaker helps prevent outages and equipment damage by safely interrupting fault currents and maintaining control across critical loads. Designed for versatility, the 5X21 is suitable for use in panelboards, switchboards, control panels, and OEM equipment. It’s an ideal choice for applications where reliable protection and safe operation are essential in distribution panels and motor control centers, covering both large facilities and compact control enclosures. \u003ch3\u003eWhat makes it stand out\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReliable overcurrent protection:\u003c\/strong\u003e protects feeders and circuits in distribution panels and motor control centers, reducing the risk of cascading faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSafe operation:\u003c\/strong\u003e built to minimize nuisance trips and maintain system stability under fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile installation:\u003c\/strong\u003e integrates into panelboards, switchboards, control panels, and OEM equipment as part of a broader electrical distribution strategy.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for industrial and commercial environments:\u003c\/strong\u003e supports a wide range of applications—from factory floors to commercial infrastructure—without compromising performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal for the people and projects that need it\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eElectrical engineers and panel builders who design and assemble protective distribution systems.\u003c\/li\u003e \u003cli\u003eMaintenance teams in industrial facilities seeking durable, dependable protection for motors and circuits.\u003c\/li\u003e \u003cli\u003eOEM equipment manufacturers needing a trustworthy circuit-breaker option for control panels and integrated electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTips for best results: verify compatibility with your panelboard or switchboard before installation, ensure proper electrical clearances, and follow local codes and Siemens installation guidelines to maintain safety and performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default","offer_id":46390993879202,"sku":"5X21","price":94.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-5x21-circuit-breaker-881.webp?v=1788916695","url":"https:\/\/www.ampstate.com\/products\/5x21","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}