{"product_id":"siemens-eh3s150l-circuit-breaker","title":"Siemens | EH3S150L | Circuit Breaker | 150A | 3-Pole | 480V","description":"\u003cdiv\u003eSiemens EH3S150L is a purpose-built circuit breaker for demanding industrial and commercial electrical setups. Rated at 150A and configured as a 3‑pole device for 480V three‑phase systems, it delivers reliable overcurrent protection where precise specifications matter. When you’re performing maintenance, retrofit, or replacement, this breaker is designed to slot into panels and feeders that require exact 3‑pole, 480V protection with a 150A rating. \u003cstrong\u003eKey specifications\u003c\/strong\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 150A\u003c\/li\u003e \u003cli\u003ePoles: 3‑Pole\u003c\/li\u003e \u003cli\u003eVoltage: 480V\u003c\/li\u003e \u003cli\u003ePart number reference: EH3S150L\u003c\/li\u003e\n\u003c\/ul\u003e Why this matters for your operation\n\u003cul\u003e \u003cli\u003eThree‑phase protection: A 3‑pole design safeguards all phases in 480V systems, helping prevent unbalanced loads and protecting motors and feeders from overloads and faults.\u003c\/li\u003e \u003cli\u003eHigh‑current capability: 150A rating is well suited for reliable protection of substantial equipment lines, feeders, and distribution circuits in industrial environments.\u003c\/li\u003e \u003cli\u003eExact compatibility: The EH3S150L is the specific form factor and rating you’ll want when matching a circuit breaker to existing Siemens panels or retrofit projects that require the same specs.\u003c\/li\u003e\n\u003c\/ul\u003e Ideal use scenarios\n\u003cul\u003e \u003cli\u003eRetrofits: Replace an aging or failed breaker in a Siemens‑compatible 480V, 3‑phase panel without sacrificing performance or safety.\u003c\/li\u003e \u003cli\u003eMaintenance: Quick, reliable protection for critical power feeds in manufacturing lines, CNC equipment, conveyors, and large HVAC systems.\u003c\/li\u003e \u003cli\u003eRepairs and upgrades: Bring older installations up to current protection standards with a direct‑swap 3‑pole 480V solution.\u003c\/li\u003e\n\u003c\/ul\u003e How to ensure the right fit\n\u003cp\u003eBefore ordering, verify that the EH3S150L matches the panel’s requirements. The part number is your most reliable reference for compatibility, helping you avoid mismatches in pole configuration, voltage, or current rating.\u003c\/p\u003e Practical considerations for installers and owners\n\u003cul\u003e \u003cli\u003eKeep a spare EH3S150L on hand for preventative maintenance and minimize downtime on critical lines.\u003c\/li\u003e \u003cli\u003eReview panel labeling and accessory compatibility to ensure seamless integration into existing Siemens electrical systems.\u003c\/li\u003e \u003cli\u003eFollow all applicable electrical codes and safety guidelines during installation or replacement.\u003c\/li\u003e\n\u003c\/ul\u003e Siemens EH3S150L delivers targeted, dependable protection for demanding 480V, 3‑phase environments. If you’re upgrading, replacing, or maintaining a circuit that requires a precise 150A, 3‑pole, 480V breaker, this part number is the clear reference point for a secure, reliable fit.\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427503853730,"sku":"EH3S150L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-eh3s150l-circuit-breaker-150a-3-pole-480v-176.webp?v=1789733209","url":"https:\/\/www.ampstate.com\/products\/siemens-eh3s150l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}