{"product_id":"siemens-ed21b100l-100a-120v-1-pole-bolt-on-circuit-breaker","title":"Siemens ED21B100L - 100 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens ED21B100L — a 100A, 120V, 1-pole bolt-on molded case circuit breaker built to safeguard panelboards and load centers with precision and reliability. Designed for residential, commercial, and light industrial applications, this unit delivers sturdy protection where it matters most, keeping wiring and equipment safe from overcurrent and short-circuit events.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, minimizing movement that can lead to loose contacts over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying loads and temperatures, reducing nuisance trips while responding quickly to true faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e100A, 120V, 1-pole\u003c\/strong\u003e configuration is ideal for protecting a single branch circuit with straightforward integration into existing panelboards and load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures seamless compatibility with matching Siemens load centers and panelboards, simplifying upgrades and replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading a service panel, configuring a new electrical subfeed, or replacing a failed breaker, the ED21B100L combines precise protection with practical installation benefits. The molded case construction provides reliable interrupting capacity and durability in everyday electrical environments, from home garages to small commercial spaces.\u003c\/p\u003e \u003ch3\u003eKey applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential panels needing dependable branch circuit protection for high-demand circuits such as HVAC, water heaters, or major appliances.\u003c\/li\u003e \u003cli\u003eCommercial panels where a robust, vibration-resistant connection helps maintain long-term reliability in busy electrical rooms.\u003c\/li\u003e \u003cli\u003eLight industrial setups requiring quick, accurate overcurrent protection on a dedicated circuit without overcomplicating the panel design.\u003c\/li\u003e \u003cli\u003ePanelboard or loadcenter upgrades where OEM compatibility reduces installation time and compatibility concerns.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: ED21B100L\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 100A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 120V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 1\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEquip your electrical system with a dependable, industry-standard solution that pairs robust mechanical design with responsive protection. The Siemens ED21B100L is built to perform when it matters most—protecting wires, devices, and occupants by preventing damage from overloads and faults. Order this bolt-on 1-pole breaker from AmpState and integrate with confidence into your Siemens-compatible load centers and panelboards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349785104546,"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_2fcc4160-c453-48c2-8601-7f5ef917853f.png?v=1764156630","url":"https:\/\/www.ampstate.com\/products\/siemens-ed21b100l-100a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}