{"product_id":"siemens-neb3b040b-40a-3p-600v-circuit-breaker","title":"Siemens NEB3B040B 40A 3P 600V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens NEB3B040B is a 40A, 3-pole, 600V bolt-on circuit breaker built for dependable protection in commercial and industrial electrical panels. This OEM-grade unit fits panelboards, load centers, and distribution boards, and is ideal for replacement projects and stocking spares to keep your BOM aligned with the original part number. Available from AmpState.\u003c\/p\u003e \u003cp\u003eWhy this matters: With a bolt-on mounting design, it delivers a secure, fast installation that minimizes panel downtime. The 3-pole configuration provides balanced protection for three-phase circuits, while the 40A rating safeguards feeders and branch circuits from overload. Rated up to 600V, it stands up to demanding electrical environments common in facilities, manufacturing, and larger offices.\u003c\/p\u003e \u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt-On Mounting\u003c\/strong\u003e for quick, reliable installation with solid bus connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-Phase, 3-Pole Design\u003c\/strong\u003e accommodates standard 3-phase distribution alongside coordinated protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40 A Rating\u003c\/strong\u003e provides precise overcurrent protection for circuits and equipment rated at or below 40 amps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600V Voltage Rating\u003c\/strong\u003e suited for typical industrial\/commercial distribution networks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-Grade Siemens Part\u003c\/strong\u003e NEB3B040B ensures BOM compatibility and long-term availability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpare-Ready\u003c\/strong\u003e maintain stock that mirrors original equipment to minimize downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCommon use cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement of a failed or outdated breaker in Siemens panelboards and load centers.\u003c\/li\u003e\n\u003cli\u003eStocking spares for facilities that rely on Siemens protection components to reduce downtime during maintenance.\u003c\/li\u003e\n\u003cli\u003eProjects requiring BOM alignment to the original part number NEB3B040B for seamless procurement and installation.\u003c\/li\u003e\n\u003cli\u003eThree-phase distribution feeds in light to medium commercial environments where reliable protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e NEB3B040B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46412452102306,"sku":"NEB3B040B","price":5291.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/siemens-neb3b040b-40a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}