{"product_id":"siemens-hkb3b120-circuit-breaker","title":"Siemens | HKB3B120 | Circuit Breaker | 1200A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HKB3B120 is a rugged, high-current circuit breaker designed to protect three-phase electrical systems with precision. With a 1200A rating and bolt-on mounting, it delivers secure, dependable protection in demanding environments where uptime and safety matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 1200A\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\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this model stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBolt-On installation provides a solid, fast, and serviceable connection within compatible panels, simplifying retrofits and replacements.\u003c\/li\u003e \u003cli\u003eDesigned for high-current protection across three live conductors, making it suitable for large feeders and motor-driven loads.\u003c\/li\u003e \u003cli\u003eFocused on reliability in maintenance, retrofit, and replacement projects where exact specifications are required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial distribution panels and service entrances where a 1200A, 3-Pole, 600V breaker is needed.\u003c\/li\u003e \u003cli\u003eRetrofits or replacements in legacy systems that require precise matching specifications to maintain electrical protection schemes.\u003c\/li\u003e \u003cli\u003eNew installations in high-current environments where quick, secure bolt-on mounting reduces commissioning time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and ordering guidance\u003c\/h3\u003e\n\u003cp\u003eTo ensure a proper fit, always confirm the breaker’s compatibility with your panel and system ratings before ordering. The part number \u003cstrong\u003eHKB3B120\u003c\/strong\u003e is the most reliable reference for matching specifications and ensuring correct interchangeability.\u003c\/p\u003e \u003ch3\u003ePractical installation and maintenance tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel is rated for 600V and supports bolt-on breakers of this size before installation.\u003c\/li\u003e \u003cli\u003eKeep a spare HKB3B120 on hand for fast replacements to minimize downtime during maintenance windows.\u003c\/li\u003e \u003cli\u003eInspect connections for signs of wear or corrosion during routine checks, and replace if any degradation is observed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens HKB3B120 for robust, high-current protection that's purpose-built for heavy-duty, three-phase power systems. It’s a precise fit for upgrades, retrofits, and reliable ongoing protection where performance and compatibility are non-negotiable.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427517976738,"sku":"HKB3B120","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\/siemens-hkb3b120-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}