{"product_id":"siemens-ngb3k090b-circuit-breaker","title":"Siemens | NGB3K090B | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003eSiemens NGB3K090B is a robust 90A, 3-pole circuit breaker designed for demanding 3-phase applications, with a 600V rating and bolt-on mounting. Built to withstand industrial environments, this unit is tailor-made for maintenance, retrofit, and replacement projects where exact specifications matter. \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 90 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole (three-phase protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 600 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting style\u003c\/strong\u003e: Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: NGB3K090B\u003c\/li\u003e\n\u003c\/ul\u003e For professionals handling panel upgrades or service work, this breaker delivers dependable overcurrent protection in heavy-load, three-phase circuits. The bolt-on design means faster, secure installation into compatible Siemens panels, reducing downtime during maintenance or retrofits without sacrificing performance or safety. \u003ch3\u003eUse cases and real-world scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaintenance in industrial control panels that rely on bolt-on breakers within the Siemens NGB family.\u003c\/li\u003e\n\u003cli\u003eRetrofit projects upgrading existing circuits to 90 A protection in 3-phase, 600V systems.\u003c\/li\u003e\n\u003cli\u003eReplacement for worn or failed breakers in compatible 3-pole, 600V installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant compatibility note:\u003c\/strong\u003e Confirm fit and ratings before ordering. The NGB3K090B part number is your best reference to ensure the breaker matches your panel’s specifications and mounting requirements.\u003c\/p\u003e \u003cp\u003eWhy choose this Siemens breaker? It pairs trusted Siemens engineering with a straightforward bolt-on installation, delivering reliable interruption protection for motors, drives, and distribution paths in industrial environments. By matching the exact specifications—90 A, 3-Pole, 600V, Bolt-On—you minimize the risk of misfits and downtime, and you simplify future service or replacements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426648248482,"sku":"NGB3K090B","price":3669.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/siemens-ngb3k090b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}