{"product_id":"siemens-hhlxd63b400l-circuit-breaker","title":"Siemens | HHLXD63B400L | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HHLXD63B400L Circuit Breaker is a rugged bolt-on protection device engineered for high-demand electrical environments. With a 400 A rating across 3 poles and a 600 V operating capacity, this breaker guards your distribution system against overcurrent while fitting compact, bolted configurations in modern industrial and commercial panels.\u003c\/p\u003e \u003ch2\u003eWhy this Siemens breaker stands out\u003c\/h2\u003e\n\u003cp\u003eDesigned for maintenance, retrofit, and replacement projects, the HHLXD63B400L delivers reliable current interruption where exact specifications matter. The bolt-on mounting offers a secure, field-serviceable connection, helping minimize downtime during servicing and upgrades. This unit is purpose-built to align with Siemens systems, ensuring consistent protection across your panel or MCC lineup.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e \u003cstrong\u003e400 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e \u003cstrong\u003e3-Pole\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e \u003cstrong\u003e600 V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e \u003cstrong\u003eBolt-On\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and installation notes\u003c\/h2\u003e\n\u003cp\u003eFor accurate compatibility, rely on the part number \u003cstrong\u003eHHLXD63B400L\u003c\/strong\u003e as the best reference. Always confirm fit and ratings with your specific panel, enclosure, and system requirements before ordering. This breaker is intended for applications that require three-pole, 600 V protection with a 400 A interrupt capacity, making it a precise match for Siemens-based protection schemes.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and replacement in existing Siemens distribution panels\u003c\/li\u003e \u003cli\u003eRetrofits where current-carrying capacity and three-pole protection are needed\u003c\/li\u003e \u003cli\u003eLarge commercial or industrial electrical installations requiring robust 400 A protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical considerations and tips\u003c\/h2\u003e\n\u003cp\u003eWhen planning a swap or upgrade, verify that your enclosure supports bolt-on mounting and that the electrical ratings align with your network requirements. Use this breaker to safeguard feeders, bus sections, and critical loads in systems designed for 600 V operations. If in doubt, consult a qualified electrician to ensure proper installation, secure mechanical attachment, and compliant electrical testing.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427076395170,"sku":"HHLXD63B400L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hhlxd63b400l-circuit-breaker-400a-3-pole-600v-bolt-696.webp?v=1789668907","url":"https:\/\/www.ampstate.com\/products\/siemens-hhlxd63b400l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}