Siemens | HLXD63B400L | Circuit Breaker | 3-Pole

Designed for reliability in Siemens electrical systems, the HLXD63B400L is a 3-pole circuit breaker built for maintenance, retrofit, and replacement projects where exact specs matter. If you’re restoring or upgrading a Siemens distribution panel, this unit helps you preserve system performance without compromise.

Why this 3-Pole breaker stands out

• 3-Pole configuration supports three-phase protection in a single device, making it ideal for commercial or light industrial power distribution.
• Model-specific reference identified by part number HLXD63B400L, simplifying compatibility checks and ordering.
• Targeted use—designed for maintenance, retrofit, and replacement tasks where matching specifications are essential for seamless integration.

Important: Before ordering, confirm fit and ratings. The part number HLXD63B400L is the best reference for compatibility with your Siemens equipment.

Practical use cases

• Maintaining or upgrading three-phase panels in manufacturing facilities, commercial spaces, or data centers where Siemens gear is standard.
• Retrofits that require swapping like-for-like breakers to minimize downtime and preserve panel design integrity.
• Replacement in aging systems to restore protection without reconfiguring the distribution setup.

Installation and compatibility tips

Plan your upgrade by verifying the panel model and the required amperage and trip characteristics. Ensure the HLXD63B400L matches the exact specifications of your Siemens panel to avoid compatibility issues. When in doubt, reference the part number HLXD63B400L as the primary compatibility guide, and consult your panel’s documentation for any manufacturer-recommended cross-checks.