Siemens | MXD63B800 | Circuit Breaker | 800A | 3-Pole | 600V | Bolt-On

Siemens MXD63B800 Circuit Breaker is built for demanding industrial environments where reliable protection and fast field service matter. This bolt-on, 3-pole device handles up to 800A at 600V, making it a precise, compatible choice for maintenance, retrofit, and replacement projects that require exact specifications.

• Amperage: 800 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Reference: MXD63B800 – best compatibility anchor

Why this model matters in the field: the bolt-on design enables quicker, cleaner installations and field swaps, minimizing downtime during routine maintenance or during a planned retrofit. It’s purpose-built for Siemens gear and aligns with panel configurations that accept MXD63B800, delivering consistent electrical characteristics and mechanical fit across compatible frames.

Ideal use cases

Perfect for three-phase power protection in industrial panels, manufacturing lines, and large electrical feeders operating at 600V. Use it when upgrading from lower-ampacity breakers that bottleneck motor start-up or when you need a robust, high-current protection device that fits Siemens-approved installations.

Compatibility and installation tips

• Always confirm fit and ratings before ordering; the part number MXD63B800 is your most reliable reference for compatibility.
• Ensure the mounting area and supporting hardware are suitable for a bolt-on 3-pole breaker in your Siemens panel.
• Keep a compatible spare on hand to reduce downtime during planned maintenance or retrofits.