{"product_id":"siemens-eh3a100-circuit-breaker","title":"Siemens | EH3A100 | Circuit Breaker | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens \u003cstrong\u003eEH3A100\u003c\/strong\u003e circuit breaker is a purpose-built solution for 3-phase electrical systems, designed to protect 480V circuits with reliable performance. This 3-pole device is ideal for maintenance, retrofit, and replacement projects where exact specifications must match existing equipment.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number reference:\u003c\/strong\u003e EH3A100\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy choose the Siemens EH3A100?\u003c\/strong\u003e This OEM component from Siemens is crafted for robust protection of 3-phase feeders in commercial and industrial environments. By aligning with the EH3A100 specification, you ensure seamless compatibility within control panels, distribution boards, and motor-related circuits that operate at 480V.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance projects where a direct 3-pole, 480V replacement is required\u003c\/li\u003e \u003cli\u003eRetrofit upgrades to restore or expand existing 3-phase protection\u003c\/li\u003e \u003cli\u003eReplacement of worn or obsolete breakers in 480V electrical panels\u003c\/li\u003e \u003cli\u003eNew installations that demand a Siemens-certified 3-pole solution for 480V systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat problems does it solve?\u003c\/strong\u003e By providing a precise 3-pole, 480V protection device, the EH3A100 helps maintain system integrity, reduce downtime from mismatched breakers, and simplify future service by relying on a familiar Siemens part reference.\u003c\/p\u003e \u003ch3\u003eCompatibility and ordering guidance\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your panel documentation. The \u003cstrong\u003eEH3A100\u003c\/strong\u003e part number is the most reliable reference for compatibility, ensuring the breaker matches the current enclosure, mounting footprint, and trip characteristics of your 3-phase 480V system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for buyers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCross-check the original breaker’s part number on your panel label or inside the enclosure door to verify exact match.\u003c\/li\u003e \u003cli\u003ePrepare to replace associated accessories or mounting hardware if they are specific to the older unit.\u003c\/li\u003e \u003cli\u003eStore replacement breakers in a clean, dry environment to preserve connector integrity and performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor professionals safeguarding 480V three-phase lines, the Siemens EH3A100 3-Pole circuit breaker offers a straightforward, reliable path to maintenance, retrofit, and replacement projects—ensuring continued system protection with a trusted, industry-standard component.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427504148642,"sku":"EH3A100","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-eh3a100-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}