{"product_id":"siemens-ed43m020-20a-3p-480v-circuit-breaker","title":"Siemens ED43M020 20A 3P 480V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the \u003cstrong\u003eSiemens ED43M020\u003c\/strong\u003e, a \u003cstrong\u003e20A\u003c\/strong\u003e \u003cstrong\u003e3-pole\u003c\/strong\u003e \u003cstrong\u003e480V\u003c\/strong\u003e circuit breaker with bolt-on mounting, engineered for reliable circuit protection in panelboards, load centers, and electrical distribution systems. This device is built to perform where it matters—in demanding commercial and industrial setups—without complicating the replacement process.\u003c\/p\u003e \u003cp\u003ePerfect for \u003cstrong\u003ereplacement projects\u003c\/strong\u003e and \u003cstrong\u003eBOM alignment\u003c\/strong\u003e, the ED43M020 helps you maintain original part numbers and streamline spare-part inventories. Keeping a few on hand means faster downtime recovery and easier maintenance scheduling, all while preserving the integrity of your electrical distribution scheme.\u003c\/p\u003e \u003ch3\u003eWhy the Siemens ED43M020 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting\u003c\/strong\u003e enables quick, secure installation with minimal disruption to existing panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection\u003c\/strong\u003e designed for three-phase circuits up to 480V, delivering balanced protection across all phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20-amp rating\u003c\/strong\u003e suits branch circuits in commercial and light industrial environments, providing targeted protection without tripping nuisance levels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOriginal part compatibility\u003c\/strong\u003e—keeping the same form factor and footprint as your current setup helps preserve BOM integrity and downstream wiring alignment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted Siemens engineering\u003c\/strong\u003e for dependable performance and long service life in distribution applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eHardware refreshes in panelboards and load centers that require \u003cem\u003eexact\u003c\/em\u003e ED43M020 replacement parts to avoid re-engineering the distribution layout.\u003c\/li\u003e \u003cli\u003eSpare-part stocking strategies that prioritize alignment with the original part number, reducing procurement risk during maintenance outages.\u003c\/li\u003e \u003cli\u003eUpgrades or retrofits in 3-phase, 480V installations where trip-curve and protection needs match a 20A, 3P device.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance\u003c\/h3\u003e\n\u003cp\u003eBefore purchasing, verify that your equipment uses the \u003cstrong\u003eED43M020\u003c\/strong\u003e footprint and that a 3-pole, 480V configuration aligns with your circuit protections. If you need confirmation on fit, AmpState offers assistance to ensure you’re selecting the correct part for your specific panel or distribution setup.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e ED43M020\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAvailable from AmpState, the \u003cstrong\u003eSiemens ED43M020\u003c\/strong\u003e is the practical, specification-aligned choice for dependable protection in your three-phase 480V systems. If you’re aiming for fast, reliable replacement with BOM integrity, this bolt-on 20A 3P breaker is engineered to deliver.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411008802978,"sku":"ED43M020","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-ed43m020-20a-3p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}