{"product_id":"siemens-hhjd63b400nlnav","title":"Siemens HHJD63B400NLNAV 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HHJD63B400NLNAV is a high-capacity 400 A, 3-pole circuit breaker engineered for demanding industrial electrical systems. With a 600 V rating, this unit provides reliable three‑phase protection for large feeders, motor circuits, and switchgear in commercial and industrial environments. Built to integrate seamlessly within Siemens panelboards and protection ecosystems, it helps ensure consistent performance across your distribution network.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 (three‑pole configuration)\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 HHJD63B400NLNAV\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 3‑pole three‑phase protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed to work with Siemens panelboards and switchgear for consistent trip characteristics\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis breaker is ideal for main protection in large feeders and heavy equipment installations. Use it to safeguard three‑phase distribution circuits in manufacturing lines, data centers, and other facilities that rely on robust, uninterrupted power delivery. As a replacement part, it matches the Siemens protection philosophy, helping maintain system coordination and reliability without compromising performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy choose this Siemens unit?\u003c\/strong\u003e It provides a dependable, tech‑aligned solution within the Siemens protection family, ensuring predictable response in fault conditions and straightforward integration with existing Siemens components. The HHJD63B400NLNAV designation identifies a precise replacement that preserves compatibility with your current panel layout and wiring schemes.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical considerations for installation and use\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify compatibility with your Siemens panel or switchgear before installation.\u003c\/li\u003e \u003cli\u003eAdhere to local electrical codes and Siemens installation guidelines for torque and electrical connections.\u003c\/li\u003e \u003cli\u003ePlan for proper de-energization and safe handling when replacing an existing unit.\u003c\/li\u003e \u003cli\u003eKeep the part number handy for procurement and maintenance records to ensure correct, consistent performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423047045282,"sku":"HHJD63B400NLNAV","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-hhjd63b400nlnav","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}