Siemens | LMXD63A800 | Circuit Breaker | 800A | 3-Pole | 600V | Bolt-On

Siemens LMXD63A800 Circuit Breaker is a robust, high-current protection solution for demanding electrical systems. With an 800 A rating, 3-pole configuration, and a 600 V rating, it’s built to handle large motor loads and intensive distribution duties. The bolt-on design delivers a secure, vibration-resistant connection, making it an ideal choice for retrofit and replacement projects where space, mounting compatibility, and reliable isolation matter. Use the part number LMXD63A800 as your primary reference to ensure precise fit and ratings.

Key specifications

• Amperage: 800 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting style: Bolt-On

Ideal use cases

• Retrofit and replacement in commercial and industrial panels that require 800 A, 3-pole protection
• Protecting large motors, pumps, fans, and heavy distribution circuits in manufacturing facilities
• Maintenance upgrades in aging switchgear where exact Siemens specifications are essential

Why this Siemens breaker stands out

The LMXD63A800 is purpose-built for reliability in high-current environments. Its bolt-on mounting provides a secure, durable connection that stands up to vibration and electrical noise common in industrial settings. By aligning with Siemens’ design language and footprint, this breaker minimizes installation risk during upgrades and replacements, helping you maintain consistent protection without extensive panel modifications.

Ordering and compatibility tips

Always confirm fit and ratings before ordering. The LMXD63A800 part number is the best reference for compatibility, ensuring the correct footprint, mounting method, and trip characteristics for your panel. When upgrading or replacing, cross-check this device against your existing Siemens equipment to ensure seamless integration.

Practical installation notes

• Power down and follow proper lockout/tagout procedures before work.
• Use the specified torque on mounting bolts to ensure a secure connection.
• Inspect associated bus bars and conductors for wear or damage during retrofit or replacement.