{"product_id":"ite-hj3b300-circuit-breaker","title":"ITE | HJ3B300 | Circuit Breaker | 300A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eITE HJ3B300 Circuit Breaker\u003c\/strong\u003e is a robust, bolt-on protection solution designed for demanding electrical environments. With a \u003cem\u003e300A\u003c\/em\u003e rating, \u003cem\u003e3-Pole\u003c\/em\u003e configuration, and a \u003cem\u003e600V\u003c\/em\u003e rating, this device is built to safeguard your equipment and personnel in industrial control panels, switchgear, and retrofit projects.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HJ3B300\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis unit shines in maintenance, retrofit, and replacement scenarios where exact specs matter. The \u003cstrong\u003ebolt-on design\u003c\/strong\u003e provides secure mounting and reliable electrical contact, making it a dependable choice for panel upgrades, service disconnects, or modernization of legacy equipment. When you’re upgrading or swapping out protection devices, the HJ3B300 offers a straightforward, field-installable solution without compromising performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy choose this model?\u003c\/strong\u003e It combines high-current protection with a compact 3-pole footprint, suitable for applications that require synchronized phase protection and coordinated tripping. The 600V rating supports a broad range of industrial systems, while the 300A capacity handles substantial load demands typical in manufacturing, processing, and heavy equipment environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e include:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eRetrofits where exact specifications matter for compatibility with existing gear\u003c\/li\u003e \u003cli\u003eMaintenance replacements to restore original protection levels\u003c\/li\u003e \u003cli\u003eNew installations in control panels that demand a bolt-on, secure mounting\u003c\/li\u003e \u003cli\u003eService disconnects where dependable current limitation and quick isolation are critical\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant ordering note:\u003c\/strong\u003e Confirm fit and ratings before ordering. The \u003cstrong\u003epart number HJ3B300\u003c\/strong\u003e is the best reference for compatibility with your equipment. If your panel or switchgear documentation shows HJ3B300, you’re likely to achieve a seamless swap with minimal downtime.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for installation and use\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eInspect mounting surfaces and ensure clean, unobstructed bolt holes before installation.\u003c\/li\u003e \u003cli\u003eVerify electrical clearances and wiring alignment to maintain proper protection and ease of maintenance.\u003c\/li\u003e \u003cli\u003eDocument the swap with the part number and panel specs to simplify future replacements or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"ITE","offers":[{"title":"Default Title","offer_id":46427518140578,"sku":"HJ3B300","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/ite-hj3b300-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}