{"product_id":"siemens-neb1b040-circuit-breaker","title":"Siemens | NEB1B040 | Circuit Breaker | 40A | 1-Pole | 277V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens NEB1B040 — a purpose-built 40A, 1-pole circuit breaker designed for dependable protection in commercial electrical systems. With a 277V rating and bolt-on mounting, this unit is built for straightforward installation, reliable performance, and drivers of ongoing safety in maintenance, retrofit, and replacement projects.\u003c\/p\u003e \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:\u003c\/strong\u003e 277V\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 NEB1B040\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this Siemens NEB1B040 stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis exact part number delivers precise compatibility, reducing the guesswork that can come with replacements. The bolt-on design enables quick, secure installation and solid bus-bar contact, which translates to reliable protection without complicated wiring modifications. With its 277V rating, it’s well-suited for many commercial circuits and lighting applications where higher-voltage protection is required.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Replace worn or tripped breakers in existing Siemens panels to restore uninterrupted service.\u003c\/li\u003e \u003cli\u003eRetrofit: Upgrade or modify panel layouts with a compatible 40A, 1-pole, 277V bolt-on breaker.\u003c\/li\u003e \u003cli\u003eReplacement: Fast, accurate swap for a failed circuit breaker that matches 40A, 1-pole, 277V specifications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and ordering guidance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore purchasing, confirm fit and ratings for your panel. The part number NEB1B040 is the most reliable reference for compatibility, ensuring you’re selecting a breaker that aligns with your existing electrical architecture and safety requirements.\u003c\/p\u003e \u003cp\u003eDesigned for professionals who demand precise specs, dependable performance, and a straightforward install, the Siemens NEB1B040 40A 1-Pole 277V bolt-on circuit breaker is a practical, durable choice for protecting critical circuits in commercial environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427064271010,"sku":"NEB1B040","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/siemens-neb1b040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}