{"product_id":"siemens-ed43b050l-50a-480v-3-pole-circuit-breaker","title":"Siemens ED43B050L - 50 A, 480 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens ED43B050L 3-pole molded case circuit breaker — a purpose-built solution for reliable branch circuit protection in 480V, three‑phase systems. With a 50A rating and a compact profile, this MCCB is engineered to maximize panel space without compromising protection or performance.\u003c\/p\u003e \u003ch3\u003eWhy the ED43B050L stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e — makes efficient use of panel space in commercial and industrial panels, leaving room for additional circuits without crowding the enclosure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — delivers stable, repeatable protection by combining thermal overcurrent sensing with magnetic short-circuit response, reducing nuisance tripping and ensuring fast interruption when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible and versatile\u003c\/strong\u003e — designed to integrate smoothly with Siemens OEM loadcenters and other compatible panelboards, simplifying retrofits and new installations alike.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBroad application range\u003c\/strong\u003e — ideal for residential (where applicable in multi‑panel setups), commercial, and light industrial environments that rely on 480V three‑phase distribution.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e ED43B050L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 50A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInstalling in commercial panelboards to safeguard 480V, three‑phase feeder circuits feeding motors, transformers, and large loads.\u003c\/li\u003e \u003cli\u003eUpgrading electrical distribution in light industrial facilities where space is at a premium and dependable protection is non-negotiable.\u003c\/li\u003e \u003cli\u003eRetrofit scenarios where OEM compatibility ensures a seamless replacement or upgrade within existing Siemens‑equipped panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eBenefits you’ll notice in everyday operation\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eClear, predictable protection curves reduce shutdowns caused by temperature variations or minor faults.\u003c\/li\u003e \u003cli\u003eEfficient panel design translates to easier wire routing, cleaner installations, and room for future expansion.\u003c\/li\u003e \u003cli\u003eReliable, industry-standard protection for critical 480V circuits minimizes risk to industrial equipment and personnel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it compares and why it’s a smart choice\u003c\/h3\u003e\n\u003cp\u003eIn the landscape of 480V, three‑phase protection, the ED43B050L offers a compelling combination of a compact form factor, precise thermal-magnetic protection, and guaranteed compatibility with Siemens loadcenters. This means quicker upgrades, fewer compatibility concerns, and dependable performance under everyday loads and fault conditions. It’s a practical upgrade path for panels that demand robust protection without sacrificing space or ease of integration.\u003c\/p\u003e \u003ch3\u003ePractical notes for installation and care\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure your panelboard or loadcenter is rated for 480V three‑phase operation and is compatible with ED43 series breakers.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque specifications and commissioning procedures for reliable connections and trip performance.\u003c\/li\u003e \u003cli\u003eProfessional electrical installation is recommended to verify correct mounting, wiring, and coordination with downstream protection devices.\u003c\/li\u003e \u003cli\u003eUse as either main or feeder protection where the panel design allows, maintaining proper coordination with downstream overcurrent devices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Siemens ED43B050L, you get a purpose-built, space-efficient, and highly reliable 3-pole circuit breaker tailored for 480V systems. It’s a thoughtful choice for professionals who value precise protection, installation flexibility, and long-term panel health.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349789954210,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_22285eef-393d-43cb-a783-0f4237891560.png?v=1764156829","url":"https:\/\/www.ampstate.com\/products\/siemens-ed43b050l-50a-480v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}