{"product_id":"siemens-eh3a020l-circuit-breaker","title":"Siemens | EH3A020L | Circuit Breaker | 20A | 3-Pole | 480V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens \u003cstrong\u003eEH3A020L\u003c\/strong\u003e circuit breaker—a purpose-built, bolt-on protector designed for demanding 480V three‑phase systems. Engineered for maintenance, retrofit, and replacement projects, this 20A, 3‑pole breaker delivers reliable, predictable protection when you need to safeguard critical electrical distribution.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat sets the EH3A020L apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThree‑pole design ensures simultaneous disconnection of all hot legs, enhancing safety and code‑compliance in 3‑phase panels.\u003c\/li\u003e \u003cli\u003eBolt‑on mounting provides a robust, vibration‑resistant connection that stands up to industrial environments.\u003c\/li\u003e \u003cli\u003ePart number EH3A020L is your best reference for compatibility, making it easier to source the exact match for existing equipment.\u003c\/li\u003e \u003cli\u003eManufactured by Siemens, a long‑standing benchmark for reliability and predictable electrical protection in commercial and industrial settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho should consider this breaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilities operating 480V three‑phase distributions that require precise 20A protection per circuit.\u003c\/li\u003e \u003cli\u003eTechnicians performing panel retrofits, upgrades, or exchanges where a bolt‑on, plug‑in replacement is needed.\u003c\/li\u003e \u003cli\u003eElectrical service teams stocking a ready‑to‑install spare for Siemens panels that specify EH3A020L compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTypical use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or obsolete breaker in a 480V, 3‑phase distribution panel during planned maintenance.\u003c\/li\u003e \u003cli\u003eIntegrating into retrofit projects to align protection with updated wiring and load profiles.\u003c\/li\u003e \u003cli\u003eMaintaining an efficient spare‑parts inventory for service contracts and on‑site response teams.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and safety notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways verify fit and ratings before ordering to ensure seamless panel compatibility.\u003c\/li\u003e \u003cli\u003eUse proper lockout\/tagout procedures and enlist a qualified electrician for installation.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque and mounting specifications for secure bolt‑on attachment.\u003c\/li\u003e \u003cli\u003eEnsure the panel is de‑energized and single‑line diagrams are consulted during replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re upgrading a 480V three‑phase system or stocking a dependable spare for Siemens panel protection, the EH3A020L delivers consistent performance, straightforward installation, and clear compatibility guidance through its part number. Confirm fit and ratings with your current equipment and proceed with confidence to maintain uninterrupted, safe electrical operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427504279714,"sku":"EH3A020L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-eh3a020l-circuit-breaker-20a-3-pole-480v-bolt-389.webp?v=1789733310","url":"https:\/\/www.ampstate.com\/products\/siemens-eh3a020l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}