Siemens | ND63B800 | Circuit Breaker | 800A | 3-Pole | 600V

Siemens ND63B800 Circuit Breaker — a reliable 800A, 3‑pole solution designed for heavy‑duty industrial electrical distribution. Built to protect three‑phase systems at up to 600V, it’s an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 800A
• Poles: 3‑Pole
• Voltage rating: 600V
• Part number: ND63B800
• Application focus: maintenance, retrofit, and replacement scenarios where precise compatibility is required

Why this breaker stands out

Designed to safeguard three‑phase loads, the ND63B800 delivers dependable overcurrent protection essential for preventing equipment damage and downtime in demanding environments. Its 800A rating is tuned for robust distribution panels and equipment clusters, offering a dependable safeguard for motors, drives, and control circuits within 600V networks.

Ideal use cases

• Maintenance and service replacements on existing Siemens panel configurations
• Retrofit projects that require a precise 800A, 3‑pole, 600V solution
• New installations where a Siemens ND63B800‑compatible circuit breaker is specified
• Industrial settings such as manufacturing floors, processing lines, and data centers requiring solid three‑phase protection

Compatibility and installation notes

Note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility. For reliable installation, consult your electrical documentation and have a qualified electrician handle the replacement to ensure proper mounting, wiring, and adherence to local safety codes.

Practical tips for optimal use

• Keep a record of the ND63B800 part number for future maintenance and replacements
• Pair with compatible Siemens panels and feeders that match the 600V, 800A, 3‑pole specification
• Document any protect‑point settings and trip characteristics during commissioning to simplify future servicing