{"product_id":"siemens-km3b500-circuit-breaker","title":"Siemens | KM3B500 | Circuit Breaker | 3-Pole | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens KM3B500 3-Pole Bolt-On Circuit Breaker — a purpose-built solution for reliable protection, designed to fit maintenance, retrofit, and replacement needs where exact specifications matter. This 3-pole design handles three-phase circuits with solid, dependable performance in compatible electrical panels.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole bolt-on design\u003c\/strong\u003e provides a secure, vibration-resistant connection ideal for demanding environments and panel configurations requiring robust mounting.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact compatibility reference\u003c\/strong\u003e the KM3B500 part number is the best guide for matching your existing equipment and ensuring a seamless retrofit or replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e specifically suited for scenarios where you need to maintain, upgrade, or replace a breaker with matching specs to keep the system running smoothly.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility notes\u003c\/strong\u003e confirm fit and ratings before ordering to avoid mismatches and ensure your electrical protection remains compliant with your panel requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho is this for?\u003c\/strong\u003e Electricians, maintenance teams, and facilities engineers who manage 3-phase electrical systems and need a dependable bolt-on breaker that aligns precisely with existing specifications. If your panel or enclosure calls for a KM3B500-type breaker, this is the match you’ve been seeking.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects where an existing Siemens 3-pole bolt-on breaker must be replaced without altering the panel framework.\u003c\/li\u003e \u003cli\u003eRoutine maintenance in commercial or industrial spaces that rely on stable 3-phase protection to minimize downtime.\u003c\/li\u003e \u003cli\u003eReplacement scenarios where exact part compatibility is essential for safety and code compliance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow it helps you work smarter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBy sticking to the exact part number, you reduce guesswork during ordering and speed up procurement for critical maintenance windows.\u003c\/li\u003e \u003cli\u003eThe bolt-on design simplifies installation and provides a solid mechanical connection, helping prevent loose contacts and intermittent trips.\u003c\/li\u003e \u003cli\u003eClear guidance to verify fit and ratings ensures you select the right breaker for your panel’s electrical requirements, maintaining system integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn short, the Siemens KM3B500 3-Pole Bolt-On Circuit Breaker is a purpose-built choice for professionals who need precise compatibility, secure mounting, and a straightforward path to reliable three-phase protection. Use the part number as your compatibility touchstone, and confirm fit and ratings before purchase to ensure a seamless, code-compliant installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424386175138,"sku":"KM3B500","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-km3b500-circuit-breaker-3-pole-bolt-765.webp?v=1789349123","url":"https:\/\/www.ampstate.com\/products\/siemens-km3b500-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}