{"product_id":"siemens-ck3b125-circuit-breaker","title":"Siemens | CK3B125 | Circuit Breaker | 125A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet reliability for demanding power layouts: the Siemens \u003cstrong\u003eCK3B125\u003c\/strong\u003e circuit breaker delivers precise overcurrent protection for 3-pole, 125A circuits in 600V systems. Built for maintenance, retrofit, and replacement projects, it helps keep commercial and light industrial panels safeguarded against overloads and short circuits.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference for compatibility:\u003c\/strong\u003e CK3B125\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e maintenance, retrofit, replacement\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens CK3B125 stands out\u003c\/h3\u003e\n\u003cp\u003eThe CK3B125 is designed to drop into Siemens-compatible panels and distribution gear that require a 3-pole, 125-amp, 600-volt protection device. Its part-number–driven compatibility makes ordering straightforward and reduces the risk of mismatch in multi-panel setups. This makes it an ideal choice for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading existing feeders to 125A protection in three-phase distributions\u003c\/li\u003e \u003cli\u003eReplacing aging or damaged breakers in service entrances and motor control centers\u003c\/li\u003e \u003cli\u003eRetrofits that unify protection across a facility to simplify maintenance and procurement\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and use\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your panel and equipment. The CK3B125 is the best reference for compatibility, so keeping the exact part number handy—CK3B125—helps ensure a seamless replacement or retrofit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424380473506,"sku":"CK3B125","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ck3b125-circuit-breaker-125a-3-pole-600v-749.webp?v=1789347575","url":"https:\/\/www.ampstate.com\/products\/siemens-ck3b125-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}