Siemens | HMXD63B800 | Circuit Breaker | 800A | 3-Pole | 600V

The Siemens HMXD63B800 circuit breaker is built for heavy-duty protection in demanding electrical environments. This 800A, 3-pole, 600V device is designed for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring you can keep critical systems online with the right protection.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V
• Part number: HMXD63B800

Why this Siemens breaker stands out

• Designed to align with Siemens panels and switchgear that require an 800A, 3-pole, 600V device, ensuring a precise fit and predictable performance across three phases.
• Focused on reliability for high-current feeder and distribution scenarios where consistent protection is essential.

Compatibility and ordering guidance

• Before ordering, confirm fit and ratings match your equipment. The part number HMXD63B800 is the most reliable reference for compatibility with Siemens systems.

Ideal use cases

• Replacing a failed or worn-out breaker in three-phase industrial or commercial electrical setups.
• Retrofit projects that require maintaining the exact Siemens specifications to support existing panels and distribution gear.
• Maintenance replacements in facilities where high-current protection is essential for uninterrupted operation.

Practical installation considerations

• Verify that your panel or switchgear accepts a 3-pole, 600V breaker with the 800A rating and that mounting and termination styles align with the HMXD63B800.
• Ensure correct electrical clearance, bus interface compatibility, and coordination with any existing protective devices in the distribution system.
• Engage a qualified electrician to perform installation and follow all manufacturer guidelines for torque, termination, and retrofitting procedures.