{"product_id":"siemens-cld63b400-circuit-breaker","title":"Siemens | CLD63B400 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens CLD63B400 circuit breaker—a robust, bolt-on, 3-pole protection device designed for demanding industrial electrical systems. With a 400A rating and 600V capacity, it safeguards your equipment and keeps downtime to a minimum during maintenance, retrofit, or replacement projects.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\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 CLD63B400\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cp\u003eDesigned to slot into compatible Siemens panels and distribution setups, this single device delivers reliable overcurrent protection in three-phase systems. The bolt-on mounting combines secure installation with straightforward service, making it an ideal choice for planned upgrades or urgent replacements where exact specifications matter.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service upgrades in industrial facilities with three-phase power\u003c\/li\u003e \u003cli\u003eRetrofits that require matching Siemens CLD63B400 specs for seamless integration\u003c\/li\u003e \u003cli\u003eReplacement of aging or failed breakers in 600V, 3‑pole distribution circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation notes and compatibility\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure a perfect match. The part number CLD63B400 is the most reliable reference for compatibility, helping you avoid mismatches and downtime.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427178893474,"sku":"CLD63B400","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-cld63b400-circuit-breaker-400a-3-pole-600v-bolt-772.webp?v=1789678735","url":"https:\/\/www.ampstate.com\/products\/siemens-cld63b400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}