{"product_id":"siemens-hed43b020-20a-480v-3-pole-bolt-on-circuit-breaker","title":"Siemens HED43B020 - 20 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HED43B020 is a 20A, 480V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for robust performance in residential, commercial, and light industrial environments, this unit fits seamlessly into OEM load centers and panelboards, providing a reliable protection solution for three-phase circuits.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing the risk of loosening and ensuring consistent protection in panels exposed to movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable performance across varying loads and temperatures, with fast response to short-circuit faults and overloads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole, 480V protection\u003c\/strong\u003e ideal for three-phase circuits, motor feeders, and controlled power distribution in small to mid-sized facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20A rating\u003c\/strong\u003e safeguards downstream devices while enabling coordinated protection across multi-branch panel configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is specifically intended for use in Siemens and matching OEM panelboards and load centers, simplifying installation and future maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case construction\u003c\/strong\u003e offers durable insulation and safer handling in everyday electrical work, with a compact form factor for easier panel integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential panels, commercial electrical rooms, and light industrial equipment enclosures, where reliable three-phase protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart number: HED43B020\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 20A\u003c\/li\u003e \u003cli\u003eVoltage rating: 480V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\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\u003eIdeal for stocking in service fleets or integration into new or replacement panel projects, the Siemens HED43B020 offers precise protection where three-phase power matters. When reliability matters and panel integrity is a priority, this bolt-on breaker from Siemens—available through AmpState—delivers a dependable, drop-in solution for your 3-pole 480V installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349801226402,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hed43b020-20-a-480-v-3-pole-bolt-on-circuit-breaker-197.webp?v=1788729849","url":"https:\/\/www.ampstate.com\/products\/siemens-hed43b020-20a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}