{"product_id":"siemens-neb2b125b-circuit-breaker","title":"Siemens | NEB2B125B | Circuit Breaker | 125A | 2-Pole | 600V | 35kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens NEB2B125B is a rugged, bolt-on 2-pole circuit breaker engineered for demanding electrical environments. With a 125A rating and 600V maximum operating voltage, it delivers dependable protection for feeders and branch circuits in commercial and industrial panels. Its 35kA interrupting capacity provides a strong safety margin for fault events, helping to safeguard both equipment and personnel.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting Capacity:\u003c\/strong\u003e 35kA\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 NEB2B125B\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets the NEB2B125B apart\u003c\/h3\u003e\n\u003cp\u003eDesigned for durability, this Siemens circuit breaker uses a bolt-on mounting style to deliver a secure, vibration-resistant connection inside compatible panels. The bolt-on configuration supports reliable seating and reduces the risk of loose contacts in environments with frequent movement or vibration—an important advantage in industrial installations and retrofit projects.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and retrofit projects where exact panel compatibility is essential\u003c\/li\u003e \u003cli\u003eReplacement of failed or aging breakers in commercial\/industrial switchgear\u003c\/li\u003e \u003cli\u003e125A feeder protection for 600V circuits in panels that require bolt-on devices\u003c\/li\u003e \u003cli\u003eService equipment upgrades in warehouses, manufacturing lines, data centers, and other facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation guidance\u003c\/h3\u003e\n\u003cp\u003eFor best results, confirm fit and ratings before ordering. The NEB2B125B part number is the most reliable reference for compatibility with Siemens panels designed for bolt-on protection devices. Before installation, verify:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThat your panel supports 2-pole, 125A bolt-on breakers\u003c\/li\u003e \u003cli\u003eThe system voltage is suitable for 600V and the application requires up to 35kA interrupting capacity\u003c\/li\u003e \u003cli\u003eCorrect mounting method and electrical clearances as specified by the panel’s documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDuring installation, follow standard electrical safety practices, refer to your panel’s torque and connection guidelines, and ensure that the conductors and lug connections are properly tightened to manufacturer specifications.\u003c\/p\u003e \u003ch3\u003eWhy choose Siemens for protection needs\u003c\/h3\u003e\n\u003cp\u003eSiemens brings a long track record of reliability in power distribution. The NEB2B125B embodies this heritage with precise engineering and compatibility within Siemens’ bolt-on catalog, making it a dependable choice when you’re protecting critical circuits and planning future replacements or upgrades.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425676054690,"sku":"NEB2B125B","price":2501.0,"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-neb2b125b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}