{"product_id":"siemens-hed43b020-20a-3-pole-molded-case-circuit-breaker-bolt-on-480v","title":"Siemens HED43B020 20A 3 Pole Molded Case Circuit Breaker – Bolt On – 480V","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:ee0e8593-5754-4bc8-9105-76fd6e5e5bde-54\" data-testid=\"conversation-turn-32\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"ab3fc133-5925-48d1-b6b2-2ff78e2d1112\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"117\" data-end=\"799\"\u003eThe \u003cstrong data-start=\"121\" data-end=\"142\"\u003eSiemens HED43B020\u003c\/strong\u003e is a compact yet high-performance molded case circuit breaker designed for reliable protection of industrial and commercial electrical distribution systems. Featuring a thermal magnetic non-interchangeable trip unit, it delivers precise overload and short-circuit protection to safeguard electrical equipment and ensure system stability. Its HED frame construction combined with a bolt-on mounting design provides secure installation and dependable long-term performance. Engineered for 240VAC and 480VAC systems at 50\/60Hz, this breaker offers high interrupting capacity, making it suitable for demanding fault conditions despite its lower current rating.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1u9eso3\" data-start=\"801\" data-end=\"827\"\u003eProduct Specifications\u003c\/h1\u003e\n\u003cul data-start=\"828\" data-end=\"1172\"\u003e\n\u003cli data-section-id=\"8wi01g\" data-start=\"828\" data-end=\"852\"\u003eBrand: Siemens \/ ITE\u003c\/li\u003e\n\u003cli data-section-id=\"17nnr5v\" data-start=\"853\" data-end=\"873\"\u003eModel: HED43B020\u003c\/li\u003e\n\u003cli data-section-id=\"ez7xfv\" data-start=\"874\" data-end=\"926\"\u003eProduct Type: Molded Case Circuit Breaker (MCCB)\u003c\/li\u003e\n\u003cli data-section-id=\"1lczgam\" data-start=\"927\" data-end=\"946\"\u003eFrame Type: HED\u003c\/li\u003e\n\u003cli data-section-id=\"1f1racx\" data-start=\"947\" data-end=\"975\"\u003eRated Current: 20 Ampere\u003c\/li\u003e\n\u003cli data-section-id=\"1mjvejc\" data-start=\"976\" data-end=\"1003\"\u003eNumber of Poles: 3 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"7epll8\" data-start=\"1004\" data-end=\"1060\"\u003eTrip Unit Type: Thermal Magnetic Non-Interchangeable\u003c\/li\u003e\n\u003cli data-section-id=\"156788j\" data-start=\"1061\" data-end=\"1087\"\u003eMounting Type: Bolt On\u003c\/li\u003e\n\u003cli data-section-id=\"ivbhe0\" data-start=\"1088\" data-end=\"1110\"\u003eFrequency: 50\/60Hz\u003c\/li\u003e\n\u003cli data-section-id=\"7ymwvx\" data-start=\"1111\" data-end=\"1172\"\u003eApplication: Commercial and Industrial Power Distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"6g15vf\" data-start=\"1174\" data-end=\"1202\"\u003eTechnical Specifications\u003c\/h1\u003e\n\u003cul data-start=\"1203\" data-end=\"1569\"\u003e\n\u003cli data-section-id=\"2rgek8\" data-start=\"1203\" data-end=\"1244\"\u003eInterrupting Capacity: 100kA @ 240VAC\u003c\/li\u003e\n\u003cli data-section-id=\"3k3mx1\" data-start=\"1245\" data-end=\"1285\"\u003eInterrupting Capacity: 42kA @ 480VAC\u003c\/li\u003e\n\u003cli data-section-id=\"y36pbr\" data-start=\"1286\" data-end=\"1320\"\u003eMaximum Voltage Rating: 480VAC\u003c\/li\u003e\n\u003cli data-section-id=\"7lk6kf\" data-start=\"1321\" data-end=\"1362\"\u003eOperating Temperature Reference: 40°C\u003c\/li\u003e\n\u003cli data-section-id=\"3neoa0\" data-start=\"1363\" data-end=\"1421\"\u003eProtection Type: Overload and Short Circuit Protection\u003c\/li\u003e\n\u003cli data-section-id=\"1achhhv\" data-start=\"1422\" data-end=\"1461\"\u003eConnection Type: Bolt-On Connection\u003c\/li\u003e\n\u003cli data-section-id=\"1sen4ov\" data-start=\"1462\" data-end=\"1504\"\u003eFrame Construction: Molded Case Design\u003c\/li\u003e\n\u003cli data-section-id=\"7i7utn\" data-start=\"1505\" data-end=\"1569\"\u003eStandard Compliance: Industrial Circuit Protection Standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"amx4xn\" data-start=\"1571\" data-end=\"1594\"\u003eVoltage and Ratings\u003c\/h1\u003e\n\u003cul data-start=\"1595\" data-end=\"1862\"\u003e\n\u003cli data-section-id=\"3gmkh7\" data-start=\"1595\" data-end=\"1641\"\u003eRated Operational Voltage: 240VAC \/ 480VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1wi5z73\" data-start=\"1642\" data-end=\"1671\"\u003eFrequency Rating: 50\/60Hz\u003c\/li\u003e\n\u003cli data-section-id=\"1fm8zun\" data-start=\"1672\" data-end=\"1695\"\u003eCurrent Rating: 20A\u003c\/li\u003e\n\u003cli data-section-id=\"lqk5xt\" data-start=\"1696\" data-end=\"1726\"\u003ePole Configuration: 3 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"1ay4n3v\" data-start=\"1727\" data-end=\"1776\"\u003eInterrupting Rating at 240VAC: 100 Kiloampere\u003c\/li\u003e\n\u003cli data-section-id=\"1g7ehc6\" data-start=\"1777\" data-end=\"1825\"\u003eInterrupting Rating at 480VAC: 42 Kiloampere\u003c\/li\u003e\n\u003cli data-section-id=\"1qd96ec\" data-start=\"1826\" data-end=\"1862\"\u003eMaximum Voltage Capacity: 480VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"15cd7p9\" data-start=\"1864\" data-end=\"1880\"\u003eProduct Data\u003c\/h1\u003e\n\u003cul data-start=\"1881\" data-end=\"2160\"\u003e\n\u003cli data-section-id=\"1n22tg8\" data-start=\"1881\" data-end=\"1912\"\u003eManufacturer: Siemens \/ ITE\u003c\/li\u003e\n\u003cli data-section-id=\"egk0td\" data-start=\"1913\" data-end=\"1948\"\u003eProduct Series: HED Frame Style\u003c\/li\u003e\n\u003cli data-section-id=\"1b3r7o3\" data-start=\"1949\" data-end=\"2017\"\u003eProduct Condition Support: New Surplus \u0026amp; Certified Reconditioned\u003c\/li\u003e\n\u003cli data-section-id=\"u6qeoy\" data-start=\"2018\" data-end=\"2056\"\u003eWarranty: 1 Year In-House Warranty\u003c\/li\u003e\n\u003cli data-section-id=\"1k5t0ea\" data-start=\"2057\" data-end=\"2096\"\u003eInstallation Type: Bolt-On Mounting\u003c\/li\u003e\n\u003cli data-section-id=\"16ak4eo\" data-start=\"2097\" data-end=\"2160\"\u003eProduct Use: Electrical Distribution and Protection Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"gbcsds\" data-start=\"2162\" data-end=\"2180\"\u003eImportant Note\u003c\/h1\u003e\n\u003cp data-start=\"2181\" data-end=\"2816\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eProduct images are for identification purposes only and may represent a standard base model configuration. Accessories purchased with the breaker can be installed at no additional cost when full configuration details are provided during checkout. Installation, maintenance, and servicing must be performed by qualified electrical personnel in accordance with applicable electrical codes and manufacturer guidelines. The included one-year warranty covers repairs, labor, replacement parts, and standard shipping required for recertification, excluding damage caused by misuse, improper installation, or normal operational wear and tear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Siemens","offers":[{"title":"New Surplus","offer_id":48369875190009,"sku":"HED43B020-NS","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Certified Reconditioned","offer_id":48369875222777,"sku":"HED43B020-CR","price":399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/hed43_7.webp?v=1778246007","url":"https:\/\/mycircuitbreakers.com\/products\/siemens-hed43b020-20a-3-pole-molded-case-circuit-breaker-bolt-on-480v","provider":"My Circuit Breakers","version":"1.0","type":"link"}