{"product_id":"siemens-eh3a020-circuit-breaker","title":"Siemens | EH3A020 | Circuit Breaker | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens EH3A020\u003c\/strong\u003e is a rugged 3-pole circuit breaker designed for demanding 480V three-phase systems. Built for reliability in maintenance, retrofit, and replacement projects, it helps keep industrial and commercial electrical installations running smoothly.\u003c\/p\u003e \u003cp\u003eWhy this part matters for your setup:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole configuration\u003c\/strong\u003e delivers protection for 3‑phase circuits, simplifying panel layouts and reducing wiring complexity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e480V rating\u003c\/strong\u003e aligns with higher-voltage distribution needs found in industrial environments, ensuring appropriate interruption for fault conditions on multi-phase networks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAuthentic Siemens part\u003c\/strong\u003e with the EH3A020 designation, offering consistent performance and compatibility within Siemens-compatible panels and hardware ecosystems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect-fit replacement and retrofit potential\u003c\/strong\u003e to minimize downtime when upgrading or restoring panel functionality in existing systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference\u003c\/strong\u003e—the part number is the best guide to fit, ratings, and electrical characteristics your panel requires.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey use cases\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eRetrofits and replacements in 3‑phase distribution panels that run on 480V systems.\u003c\/li\u003e \u003cli\u003eMaintenance cycles for industrial equipment, manufacturing lines, and commercial power distribution networks.\u003c\/li\u003e \u003cli\u003eUpgrades or refurbishments where matching Siemens specifications ensures consistent electrical protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat to check before ordering\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eConfirm fit by cross-referencing your panel label and service documentation with the EH3A020 part number.\u003c\/li\u003e \u003cli\u003eVerify that the 3-pole, 480V rating matches the intended circuit and that the surrounding bus assembly accepts this Siemens model.\u003c\/li\u003e \u003cli\u003eUse the part number EH3A020 as the primary reference for compatibility to avoid mismatches in ratings or form factor.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 480V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for professionals who demand dependable, straightforward compatibility in Siemens‑based electrical infrastructure, the Siemens EH3A020 3‑Pole 480V circuit breaker is a practical choice for keeping power systems safe, compliant, and ready for operation. Whether you’re performing routine maintenance, executing a retrofit, or replacing a worn-out unit, this part provides a concrete, exact-match solution that aligns with your existing equipment and service procedures.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427522334882,"sku":"EH3A020","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-eh3a020-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}