{"product_id":"siemens-hlxd63b450h","title":"Siemens HLXD63B450H 450A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HLXD63B450H 450A 3-Pole 600 V Circuit Breaker — a robust solution for safeguarding demanding industrial power systems. Built to handle substantial three-phase loads, this breaker delivers reliable protection for feeders and equipment in environments where uptime matters and faults can be costly.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 450 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HLXD63B450H\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct line:\u003c\/strong\u003e Siemens HLXD family (industrial-grade circuit protection)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters for your operation\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtects three-phase feeders and connected equipment from overloads and short circuits, helping to prevent damage to motors, drives, and critical power distribution components.\u003c\/li\u003e \u003cli\u003eHigh current handling (450 A) reduces the need for multiple devices in large circuits, simplifying panel layouts and improving reliability in busy electrical rooms.\u003c\/li\u003e \u003cli\u003e600 V rating covers a range of commercial and industrial systems, providing a versatile and durable protection device for diverse installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal applications and use cases\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIndustrial facilities with heavy three-phase motors and heavy-duty equipment where a single protective device must manage substantial loads.\u003c\/li\u003e \u003cli\u003ePrimary and feeder protection in switchgear and large panelboards where centralized trip protection is critical for minimizing fault impact.\u003c\/li\u003e \u003cli\u003eRefurbishment or replacement projects that require a precise 450 A, 3-pole, 600 V solution with a proven track record from a trusted SKU.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKey considerations for selecting this breaker\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDesigned to protect three-phase circuits up to 600 V, making it suitable for many common industrial power systems.\u003c\/li\u003e \u003cli\u003eChoose this unit when your application demands a single, high-capacity protective device rather than multiple smaller breakers.\u003c\/li\u003e \u003cli\u003eVerify compatibility with existing Siemens infrastructure and ensure proper installation by a qualified electrician following all relevant safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips to maximize performance\u003c\/p\u003e \u003cul\u003e \u003cli\u003eRegularly inspect terminations for tightness and signs of wear to maintain reliable protection and minimize contact resistance.\u003c\/li\u003e \u003cli\u003eDocument the part number (HLXD63B450H) and keep spare units on hand to reduce downtime during maintenance or panel upgrades.\u003c\/li\u003e \u003cli\u003eWhen planning replacements, confirm that the replacement device matches the same current rating, pole configuration, and voltage to preserve system protection characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens HLXD63B450H for dependable, high-capacity protection in demanding three-phase installations. With a 450 A rating, 3-pole construction, and a 600 V ceiling, it’s built to safeguard your critical equipment and keep your operations running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423587520674,"sku":"HLXD63B450H","price":42994.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hlxd63b450h-450a-3-pole-600-v-circuit-breaker-966.webp?v=1789318135","url":"https:\/\/www.ampstate.com\/products\/siemens-hlxd63b450h","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}