{"product_id":"siemens-lgb3b125b-circuit-breaker","title":"Siemens | LGB3B125B | Circuit Breaker | 125A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Siemens, the LGB3B125B circuit breaker delivers robust protection for 3‑phase electrical systems up to 600V. With a 125A rating and three poles, this bolt‑on unit is built for demanding maintenance, retrofit, and replacement tasks where exact compatibility matters.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\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 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e LGB3B125B (best compatibility reference)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this design stands out: the LGB3B125B pairing from Siemens gives you reliable interruption protection for three‑phase, high‑voltage circuits, with a bolt‑on configuration that ensures a secure, vibration‑resistant connection in compatible panels. This makes it particularly well suited for retrofit projects, service upgrades, and replacement of aging equipment where panel design requires a bolt‑on style.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance shutdowns and component replacements in industrial or commercial panels.\u003c\/li\u003e \u003cli\u003eRetrofit projects where upgrading protection for 3‑phase 600V circuits is required.\u003c\/li\u003e \u003cli\u003eStocking spare breakers for critical equipment facing frequent service intervals.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings—the part number LGB3B125B is the most reliable reference for compatibility with your panel. Ensure your panel supports bolt‑on mounting and 3‑pole, 600V protection to maximize safety and performance.\u003c\/p\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eBy providing precise overcurrent protection for 3‑phase 600V circuits, this Siemens breaker helps prevent equipment damage, reduces the risk of electrical faults, and supports safe, predictable shutdowns during maintenance and upgrades.\u003c\/p\u003e \u003ch3\u003ePractical guidance for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMatch the breaker to an existing panel’s mounting style and voltage rating to avoid compatibility issues.\u003c\/li\u003e \u003cli\u003eKeep spare parts on hand for critical lines to minimize downtime during service windows.\u003c\/li\u003e \u003cli\u003eHandle with standard electrical safety procedures during installation to ensure secure, torque‑appropriate mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425524633762,"sku":"LGB3B125B","price":1409.0,"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-lgb3b125b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}