Siemens | HHJXD63B400 | Circuit Breaker | 3-Pole | Bolt-On

Meet the Siemens HHJXD63B400, a rugged 3-pole bolt-on circuit breaker designed for maintenance, retrofit, and replacement projects where exact specifications matter. This unit is built to integrate with compatible Siemens panels, delivering reliable protection when you need a precise, drop-in solution.

• 3-Pole Bolt-On configuration: Secure, straightforward mounting in panels that support this format, enabling synchronized protection across three conductors.
• Definitive compatibility reference: The HHJXD63B400 part number is the best guide for fit and specs—be sure to verify against your panel’s requirements before ordering.
• Ideal use cases: Perfect for panel retrofits, maintenance outages, and replacements where a 3-pole bolt-on device is required.

Why this matters

• Reliability you can count on: Siemens engineering supports dependable performance in critical electrical protection applications.
• Operational longevity: Designed for repeated use in demanding environments, helping minimize downtime during service windows.
• Versatile applicability: Suitable for a range of Siemens panel lines that accept 3-pole bolt-on breakers, making it a practical addition to trust-worthy spare parts inventories.

Purchase guidance

• Before ordering, confirm fit and ratings to ensure compatibility with your panel and system requirements. Refer to the HHJXD63B400 part number as the primary reference for the exact match.

This Siemens circuit breaker is purpose-built for professionals who need a dependable, correctly spec’d 3-pole bolt-on solution that aligns with existing Siemens infrastructure. Whether you’re performing a retrofit, conducting routine maintenance, or replacing a worn unit, the HHJXD63B400 helps you restore protective performance quickly and confidently.