{"product_id":"siemens-ngb1k040b-circuit-breaker","title":"Siemens | NGB1K040B | Circuit Breaker | 40A | 1-Pole | 347V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens NGB1K040B Circuit Breaker — a purpose-built, 40A, 1-pole protection solution designed for 347V electrical distributions. Built for reliability in maintenance, retrofit, and replacement projects, this unit aligns with Siemens’ renowned protection standards to keep critical circuits safeguarded without unnecessary downtime.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 347V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NGB1K040B\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Confirm fit and ratings before ordering. Part number is the best reference for compatibility.\u003c\/p\u003e \u003ch3\u003eWhy choose the NGB1K040B for your panel\u003c\/h3\u003e\n\u003cp\u003eThis Siemens breaker is purpose-built for single-pole protection on 347V systems, offering a precise size, mounting, and electrical characteristics that align with Siemens panels and field installations. Using the exact part number helps ensure \u003cem\u003eperfect compatibility\u003c\/em\u003e with existing bus configurations and accessory kits, reducing the risk of misfits that can delay service or require unnecessary replacements.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRoutine maintenance in commercial or industrial panels with 347V distributions\u003c\/li\u003e \u003cli\u003eRetrofit projects where older protection devices need a like-for-like Siemens replacement\u003c\/li\u003e \u003cli\u003eReplacement for a failed 40A, 1-pole breaker within Siemens-compatible systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cp\u003eBefore installing, verify that the panel board and circuit channel are rated for 347V and that a 40A single-pole device is appropriate for the protected branch. Keep a record of the part number (NGB1K040B) for future maintenance and ordering to guarantee continued compatibility with your Siemens ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426649690274,"sku":"NGB1K040B","price":645.0,"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-ngb1k040b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}