{"product_id":"siemens-ngb1b040v-circuit-breaker","title":"Siemens | NGB1B040V | Circuit Breaker | 40A | 1-Pole | 347V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens NGB1B040V Circuit Breaker delivers precise, dependable protection for 347V circuits in commercial and industrial panels. This 40A, 1-Pole bolt-on breaker is engineered for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring your electrical system stays safe, compliant, and up to date.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eAmperage:\u003c\/b\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage rating:\u003c\/b\u003e 347V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting:\u003c\/b\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart reference:\u003c\/b\u003e NGB1B040V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eSecure, durable mounting:\u003c\/b\u003e The bolt-on design provides a robust mechanical connection, ideal for panels that require a solid, vibration-resistant fit.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDesigned for 347V systems:\u003c\/b\u003e Perfect for commercial distribution and certain industrial applications where 347V circuits are prevalent.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRight-sized protection:\u003c\/b\u003e A 40-amp rating protects circuits without unnecessary nuisance tripping, helping to keep equipment running smoothly.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM compatibility:\u003c\/b\u003e As an authentic Siemens device, it aligns with the trip characteristics and coordination you expect from Siemens protective equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eClear reference for compatibility:\u003c\/b\u003e When matching parts, the NGB1B040V is your best reference to ensure a precise fit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Replace a failed or aging breaker in existing Siemens panels that require a 40A, 1-Pole bolt-on solution.\u003c\/li\u003e \u003cli\u003e retrofit projects: Update distribution boards to maintain proper protection on 347V circuits.\u003c\/li\u003e \u003cli\u003eReplacement in 347V feeders: Ensure continuity of critical loads by choosing the exact spec you need.\u003c\/li\u003e \u003cli\u003eNew installations where a single-pole, bolt-on breaker is the correct form factor for 347V protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation tips and compatibility notes\u003c\/h3\u003e\n\u003cp\u003eBefore purchasing, confirm fit and ratings against your panel specifications. The best compatibility reference is the part number NGB1B040V. For installation, power down the system and follow standard safety practices. Ensure the panel accepts bolt-on breakers and that bus stabs align with the device. When mounting, use the appropriate tool and torque to the manufacturer's specified guidelines to maintain a secure, reliable connection.\u003c\/p\u003e \u003cp\u003eDesigned for professionals who need exact Siemens specifications, the NGB1B040V is a reliable choice for protecting 347V circuits with confidence. Add this 40A, 1-Pole bolt-on breaker to your maintenance, retrofit, or replacement project and restore steady, safe operation to your electrical distribution system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426756186274,"sku":"NGB1B040V","price":527.0,"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-ngb1b040v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}