{"product_id":"siemens-ed41b040-40a-120v-1-pole-bolt-on-circuit-breaker","title":"Siemens ED41B040 - 40 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens ED41B040 - a 40A, 120V, 1-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection inside panelboards and loadcenters. Built for real-world electrical systems, it provides a solid, maintenance-friendly solution for homes, small businesses, and light industrial setups.\u003c\/p\u003e \u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e ensures a rigid, vibration-resistant bus connection, minimizing loosening risks in active service environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining thermal overload sensing with instantaneous magnetic trip for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e works with matching Siemens loadcenters and panelboards for straightforward upgrades, replacements, or panel modernization.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust molded-case construction\u003c\/strong\u003e designed to withstand everyday electrical loads and environmental challenges in residential, commercial, and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 40A, 120V\u003c\/strong\u003e configuration is ideal for protecting individual branch circuits such as lighting, receptacle circuits, or small equipment feeders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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 ED41B040\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 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\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\u003cp\u003eUse this ED41B040 breaker when you need reliable protection in residential service panels, small commercial setups, or light industrial distribution boards. It’s particularly well-suited for protecting individual lighting circuits, outlets, or dedicated loads where a compact, easy-to-install solution is key.\u003c\/p\u003e \u003ch3\u003eWhy choose this Siemens breaker\u003c\/h3\u003e\n\u003cp\u003eWhat sets the ED41B040 apart is its combination of a secure bolt-on mount and a thermal-magnetic trip that stays consistent under varying load conditions. The bolt-on design minimizes vibration-related connection issues, while the trip unit provides dependable response to both overloads and short circuits. When paired with matching Siemens OEM panels, you get a cohesive, streamlined replacement or expansion path that preserves panel rating integrity and simplifies maintenance.\u003c\/p\u003e \u003cp\u003eWhether you’re upgrading an existing panel or outfitting a new installation, the Siemens ED41B040 delivers clear, practical advantages: precise protection, solid installation, and seamless compatibility within the Siemens ecosystem. Add it to your panel today for a proven, field-ready solution that protects what you power.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349787562146,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ed41b040-40-a-120-v-1-pole-bolt-on-circuit-breaker-ampstate-917.webp?v=1788726629","url":"https:\/\/www.ampstate.com\/products\/siemens-ed41b040-40a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}