{"product_id":"siemens-hed43b090l-circuit-breaker","title":"Siemens | HED43B090L | Circuit Breaker | 90A | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens HED43B090L circuit breaker — a purpose-built protection device designed for demanding 3‑phase systems. With a 90A rating, 3 poles, and a 480V operating envelope, this breaker is built to safeguard industrial equipment, reduce downtime, and maintain consistent power quality in retrofit, maintenance, and replacement projects.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 90A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HED43B090L\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant compatibility notes:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility with Siemens panels and accessories.\u003c\/p\u003e \u003ch3\u003eWhy this 3-pole, 480V breaker is ideal for industrial needs\u003c\/h3\u003e\n\u003cp\u003eIn three‑phase power networks, a 3‑pole breaker protects all live conductors simultaneously, preventing unbalanced loads and safeguarding equipment from phase-to-phase faults. The 480V rating makes it suitable for common industrial distribution panels, motor control centers, and service disconnects where robust protection and fast, coordinated tripping are essential. Built by Siemens, it aligns with the brand’s reliability and design standards, ensuring seamless integration with existing Siemens systems.\u003c\/p\u003e \u003ch3\u003eWho benefits most from the HED43B090L\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance teams performing routine replacements on Siemens-compatible gear\u003c\/li\u003e \u003cli\u003eRetrofit projects updating legacy panels to current protection specifications\u003c\/li\u003e \u003cli\u003eFacilities managers seeking dependable, long lifecycle protection for 3‑phase feeders\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and use\u003c\/h3\u003e\n\u003cp\u003eUse the part number \u003cstrong\u003eHED43B090L\u003c\/strong\u003e as the primary reference to verify compatibility with your equipment. Before ordering, double‑check panel labeling and system voltage to ensure a correct fit. Follow manufacturer installation guidelines and local electrical codes for safe, compliant wiring and mounting. Keep a spare breaker on hand for downtime-critical environments to maintain operation during planned maintenance windows.\u003c\/p\u003e \u003ch3\u003eWhat sets Siemens apart in this category\u003c\/h3\u003e\n\u003cp\u003eUnlike generic replacements, the \u003cstrong\u003eSiemens HED43B090L\u003c\/strong\u003e is a purpose-built component designed to align with Siemens protection strategies. Its 90A rating, 3‑pole configuration, and 480V compatibility deliver precise protection for three‑phase systems while preserving warranty continuity and system performance in Siemens‑based installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425629655202,"sku":"HED43B090L","price":1329.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hed43b090l-circuit-breaker-90a-3-pole-480v-952.webp?v=1789433298","url":"https:\/\/www.ampstate.com\/products\/siemens-hed43b090l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}