{"product_id":"siemens-neg3b045l-45a-3-pole-circuit-breaker","title":"Siemens NEG3B045L - 45 A, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens NEG3B045L is a 45A, 3-pole molded case circuit breaker engineered to safeguard panelboards and loadcenters from overcurrent and short-circuit events. Built for reliable, long-lasting performance, this unit is a trusted choice for residential, commercial, and light industrial electrical protection.\u003c\/p\u003e \u003ch3\u003eKey benefits that set it apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient design:\u003c\/strong\u003e Compact molded case construction makes efficient use of panel space, helping you fit protection where you need it without crowding the enclosure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection by combining thermal sensing for gradual overloads with magnetic instantaneous tripping for sudden faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration:\u003c\/strong\u003e Provides synchronized disconnection of all conductors, essential for proper three‑phase protection in compatible panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e OEM-compatible:\u003c\/strong\u003e Designed to be used with matching OEM loadcenters and panelboards for a clean, reliable installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application range:\u003c\/strong\u003e Ideal for branch circuit protection in residential settings, commercial spaces, and light industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e NEG3B045L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential panelboards needing compact, reliable three-pole protection for multi-wire circuits or three‑phase feeders in newer homes.\u003c\/li\u003e \u003cli\u003eSmall to mid-sized commercial panels where space optimization is critical and dependable trip performance matters.\u003c\/li\u003e \u003cli\u003eLight industrial panels that require robust protection for multiple branch circuits feeding motors, lighting, and receptacle outlets.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility considerations\u003c\/h3\u003e\n\u003cp\u003ePair the NEG3B045L with matching OEM loadcenters and panelboards to ensure seamless fit and electrical coordination. As with all electrical installations, follow the local electrical codes and consult a licensed electrician to verify compatibility with your specific enclosure, bus arrangement, and wiring methods.\u003c\/p\u003e \u003cp\u003eIncorporating the Siemens NEG3B045L into your protection scheme delivers dependable overcurrent and short-circuit protection, with a compact footprint and a trip mechanism designed for predictable performance across a range of applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355137003682,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_8e362a02-ced2-4a13-8a0c-43fa448f6850.png?v=1764689553","url":"https:\/\/www.ampstate.com\/products\/siemens-neg3b045l-45a-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}