{"product_id":"siemens-hed41b020-20a-277v-1-pole-bolt-on-circuit-breaker","title":"Siemens HED41B020 - 20 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED41B020 is a 20A, 277V, 1-pole bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to fit seamlessly into Siemens ecosystems, this device delivers precise protection where it matters most — in commercial, residential, and light industrial electrical distributions.\u003c\/p\u003e \u003ch3\u003eSecure, vibration-resistant mounting\u003c\/h3\u003e\n\u003cp\u003eWith a dedicated bolt-on mounting design, the HED41B020 creates a rigid bus connection that stays put even in environments with vibration or heavy equipment. This robust mounting reduces connection drift over time, helping maintain reliable protection and minimizing nuisance trips caused by loose terms or arcing at the bus.\u003c\/p\u003e \u003ch3\u003eThermal-magnetic protection you can trust\u003c\/h3\u003e\n\u003cp\u003eThe integrated thermal-magnetic trip unit delivers stable, repeatable protection performance. It responds to sustained overloads with gentle, predictable tripping and instantly interrupts on short circuits for fast, effective isolation of faulted circuits. This dual-action protection helps safeguard wiring and connected loads without compromising normal operation.\u003c\/p\u003e \u003ch3\u003eDesigned for Siemens panel ecosystems\u003c\/h3\u003e\n\u003cp\u003eSpecifically engineered to be compatible with matching OEM load centers and panelboards, this 1-pole bolt-on breaker ensures a precise fit and consistent electrical characteristics within your distribution system. Ideal for panel upgrades, maintenance, or new installations where Siemens compatibility matters.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\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\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HED41B020\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\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect 277V lighting circuits in commercial buildings, schools, or offices where reliable, instantaneous fault isolation matters.\u003c\/li\u003e \u003cli\u003eUpgrade or replace aging breakers in panelboards and load centers that require a Siemens-compatible bolt-on solution.\u003c\/li\u003e \u003cli\u003eSupport small to mid-size electrical distributions in light industrial environments where robust, vibration-resistant connections are beneficial.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReal-world reliability:\u003c\/strong\u003e A secure bolt-on mount minimizes movement and connection wear, supporting long-term performance in demanding installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise protection:\u003c\/strong\u003e Thermal-magnetic trip technology delivers predictable response to overloads and short circuits, helping protect wiring and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e Seamless integration:\u003c\/strong\u003e Engineered to pair with Siemens OEM load centers and panelboards for a cohesive, code-compliant distribution system.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re stocking a Siemens-based electrical distribution setup that demands dependable overcurrent protection for 277V circuits, the Siemens HED41B020 delivers a focused, durable solution. Its combination of secure mounting, precise thermal-magnetic protection, and OEM-compatible design makes it a practical choice for professional electrical installations and upgrades.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349798670498,"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_4ad899e2-ca19-4679-ac41-7dee84731ee9.png?v=1764157123","url":"https:\/\/www.ampstate.com\/products\/siemens-hed41b020-20a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}