{"product_id":"siemens-he43b050-circuit-breaker","title":"Siemens | HE43B050 | Circuit Breaker | 50A | 3-Pole | 480V | 25kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eWhen your industrial panel demands robust, reliable overcurrent protection, the Siemens HE43B050 bolt-on circuit breaker is built to perform. This 50A, 3-pole device safeguards 480V systems with a formidable 25kA interrupting rating, delivering fast, clean shutdowns across all phases to protect motors, feeders, and control circuits in demanding environments.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 50A\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 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting capacity:\u003c\/strong\u003e 25kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HE43B050\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens HE43B050 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On reliability:\u003c\/strong\u003e The bolt-on mounting provides secure, vibration-resistant installation in compatible Siemens panels, reducing panel modification time during retrofits or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection for balanced quiescence:\u003c\/strong\u003e With three independent poles, it ensures simultaneous disconnection of all phases, minimizing the risk of unbalanced faults and protecting connected motors and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh fault current handling:\u003c\/strong\u003e A 25kA interrupting rating means this breaker can safely interrupt substantial fault currents typical in industrial environments, helping to prevent collateral damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrime reference for compatibility:\u003c\/strong\u003e The HE43B050 is designed for maintenance, retrofit, and replacement work where matching specifications are essential—use the part number as your best compatibility reference.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofits and panel upgrades in manufacturing lines that utilize 480V three-phase equipment\u003c\/li\u003e \u003cli\u003eReplacement for aging or failed breakers in motor control centers and distribution panels\u003c\/li\u003e \u003cli\u003eNew or upgraded feeder protection for industrial machinery, pumps, and conveyors that require precise 50A protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation tips and compatibility notes\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings before ordering. The part number HE43B050 is the most reliable reference for compatibility with Siemens assemblies.\u003c\/li\u003e \u003cli\u003eEnsure the host panel supports bolt-on mounting and 3-pole protection at 480V.\u003c\/li\u003e \u003cli\u003ePlan for synchronized switching across all three phases to preserve equipment lifetimes and reduce inrush-related stress on drives and motors.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEquip your Siemens-compatible protection lineup with the HE43B050 to deliver dependable, high-capacity protection where it matters most. If your system runs on 480V three-phase power and requires a sturdy 50A, 3-pole bolt-on breaker capable of withstanding substantial fault currents, this device is engineered to perform—and endure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424382537890,"sku":"HE43B050","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-he43b050-circuit-breaker-50a-3-pole-480v-25ka-bolt-906.webp?v=1789348223","url":"https:\/\/www.ampstate.com\/products\/siemens-he43b050-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}