{"product_id":"siemens-neb2b040b-circuit-breaker","title":"Siemens | NEB2B040B | Circuit Breaker | 40A | 2-Pole | 600V | 35kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for dependable protection in industrial and commercial electrical systems, the Siemens NEB2B040B is a bolt‑on, two‑pole circuit breaker designed for reliable performance in 40‑amp circuits up to 600 volts. Built to support maintenance, retrofit, and replacement projects, this breaker helps you keep critical equipment protected with a precise, compatible fit.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\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 35 kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt‑On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NEB2B040B\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this Siemens breaker stand out\u003c\/h3\u003e\n\u003cp\u003eThe NEB2B040B isn’t just another 40A breaker. Its bolt‑on design provides a secure, solid connection that simplifies installation in compatible panels, reducing setup time during upgrades or replacements. With a high 35 kA interrupting rating, it offers strong fault current protection for demanding electrical environments, helping minimize risk to both personnel and equipment.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofitting older panels to meet current safety and performance standards\u003c\/li\u003e \u003cli\u003eReplacing worn or damaged breakers in commercial or light industrial installations\u003c\/li\u003e \u003cli\u003eUpgrading circuits feeding motors, conveyors, or processing equipment within 600V systems\u003c\/li\u003e \u003cli\u003eMaintenance projects where exact part matching is critical for gatekeeping panel integrity\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, compatibility \u0026amp; installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e before ordering; the part number NEB2B040B is the best reference for compatibility with your panel.\u003c\/li\u003e \u003cli\u003eEnsure the panel supports a 600V, 2‑pole, bolt‑on breaker of this specification for a secure fit.\u003c\/li\u003e \u003cli\u003eHave a qualified electrician perform installation, power shutdown, and testing to uphold safety and code compliance.\u003c\/li\u003e \u003cli\u003eStore and handle the breaker in a clean, dry environment to preserve contact reliability and performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Siemens NEB2B040B, you gain a targeted, reliable solution for protecting 40‑amp circuits in 600V systems, backed by Siemens’ engineering heritage and a mounting design that streamlines retrofit work. When you’re updating panels or replacing aging components, this bolt‑on, two‑pole breaker delivers precise protection where it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425625985186,"sku":"NEB2B040B","price":759.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-neb2b040b-circuit-breaker-40a-2-pole-600v-35ka-bolt-693.webp?v=1789432466","url":"https:\/\/www.ampstate.com\/products\/siemens-neb2b040b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}