{"product_id":"siemens-km3b800-circuit-breaker","title":"Siemens | KM3B800 | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens KM3B800 is a 3-pole circuit breaker built for reliable protection in three-phase electrical systems. Identified by the part number KM3B800, this unit shines in maintenance, retrofit, and replacement projects where exact specifications matter. When you need a drop-in, compatible solution, KM3B800 is the reference you can trust.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design for three-phase protection:\u003c\/strong\u003e Supports common 3-phase configurations, providing coordinated protection across all phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM Siemens reliability:\u003c\/strong\u003e As a Siemens component, it’s engineered to match the performance and electrical characteristics expected in Siemens panels and compatible systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference:\u003c\/strong\u003e The KM3B800 part number is the best reference for determining fit with your equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for maintenance, retrofit, and replacement:\u003c\/strong\u003e A practical choice when you’re upgrading or restoring older installations that require exact specifications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBefore you order:\u003c\/strong\u003e Confirm fit and ratings to ensure seamless integration with your panel and load requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance on three-pole distribution panels in manufacturing facilities\u003c\/li\u003e \u003cli\u003eRetrofit projects upgrading control gear in commercial buildings\u003c\/li\u003e \u003cli\u003eReplacement in existing Siemens or compatible systems where KM3B800 is specified\u003c\/li\u003e \u003cli\u003eSpare parts stocking for service teams to minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat to check before purchasing\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure the exact part number KM3B800 matches your specification needs\u003c\/li\u003e \u003cli\u003eVerify the 3-Pole configuration aligns with your panel’s feed\u003c\/li\u003e \u003cli\u003eConfirm voltage and current ratings match your installation requirements\u003c\/li\u003e \u003cli\u003eCheck mounting style and terminal compatibility with your enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424395874466,"sku":"KM3B800","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/siemens-km3b800-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}