Siemens LXD63B500H 500A 3P 600V Circuit Breaker, Bolt-On | AmpState

The Siemens LXD63B500H 500A 3P 600V Circuit Breaker, Bolt-On is engineered to deliver dependable protection in demanding electrical systems. Designed for panelboards, load centers, and distributed electrical networks, this bolt-on breaker provides rugged, reliable overcurrent protection for large feeders and critical circuits.

Key specifications at a glance

• Amperage: 500 A
• Poles: 3
• Voltage rating: 600 V
• Mounting type: Bolt-On
• Manufacturer: Siemens
• Part number: LXD63B500H
• Product type: Circuit Breaker

Why this bolt-on breaker stands out

• If your electrical system requires a consistent part number for ongoing maintenance or panel upgrades, the LXD63B500H provides a stable option that fits existing enclosures and wiring schemes.
• High-current protection for demanding systems: With a 500 A rating across three poles, it shields large feeders, motor circuits, and distribution panels from overloads and short circuits without compromising reliability.
• Robust compatibility: Specifically suited for Siemens panelboards and load centers, this bolt-on solution integrates smoothly with other components in the LXD63 family, helping maintain cohesive protection strategies.
• Economic continuity for maintenance: Available through AmpState, this part supports planned maintenance and stocking programs, reducing downtime when a replacement is needed.

Practical use cases

• Retrofit projects: Upgrade existing installations that require the same part number for consistency, while upgrading protection to meet current standards.
• Maintenance planning: Keep a ready-to-go spare in inventory to minimize panel downtime during routine service or unforeseen outages.
• Industrial and commercial distribution: Protect critical feeders in large facilities where high current and reliable tripping are essential.

Installation and early-life tips

• Verify compatibility with your Siemens panelboard or load center’s mounting pattern and bus connection arrangement before installation.
• Follow standard safety procedures: de-energize equipment, discharge stored energy, and use proper torque specifications during bolt-on mounting.
• Schedule preventive maintenance that includes periodic inspection of the bolt-on terminals and tripping mechanism to ensure consistent performance over time.

Whether you're retrofitting an existing distribution system, stocking for maintenance, or aligning part numbers for a long-term project, the Siemens LXD63B500H 500A 3P 600V Circuit Breaker, Bolt-On delivers dependable protection with the precision and compatibility you expect from Siemens. If you’re matching a specific part for fit, AmpState is ready to help confirm compatibility and ensure you get the right component for your panel system.