Siemens | HNXD63B800 | Circuit Breaker | 800A | 3-Pole | 600V | Bolt-On

Engineered by Siemens, the HNXD63B800 circuit breaker delivers robust, three‑phase protection for demanding electrical systems. With an 800A rating, 3‑pole configuration, and a 600V operating range, this bolt‑on unit is designed for fast, secure installation in maintenance, retrofit, or replacement projects within Siemens‑based panels and compatible industrial setups.

Specifications at a glance

• Amperage: 800A
• Poles: 3‑Pole
• Voltage: 600V
• Mounting: Bolt‑On
• Part number: HNXD63B800

Why this Siemens HNXD63B800 stands out

• Secure bolt‑on mounting: The bolt‑on design simplifies installation, delivering a solid mechanical connection and reliable long‑term performance without complex wiring changes.
• Coordinated three‑phase protection: A true 3‑pole breaker ensures balanced protection across all phases, helping prevent phase loss issues and maintaining system stability in moving loads and motors.
• Clear compatibility reference: The part number HNXD63B800 is the best reference for compatibility, making it easier to verify fit during maintenance, retrofit, or replacement programs in Siemens environments.
• High‑capacity protection: An 800A rating provides the capacity needed for large distribution panels and heavy‑duty applications common in industrial facilities, data centers, and commercial builds.

Ideal use cases

• Maintenance and service of existing Siemens panels that require a like‑for‑like replacement with the same electrical characteristics.
• Retrofit projects where upgrading to an 800A, 3‑pole, 600V main or feeder breaker is necessary to accommodate increased load requirements.
• New installations in three‑phase systems where a bolt‑on protection device is preferred for quick, secure mounting in rugged industrial environments.

Practical installation and compatibility tips

Before ordering, verify that the breaker’s ratings match the panel specifications and that the part number aligns with your equipment for a seamless fit. Because the HNXD63B800 is tightly aligned with Siemens panel design, using the exact part number minimizes mismatch risk and simplifies future maintenance. Always follow proper lockout/tagout procedures and consult your panel manual to ensure correct bus bar alignment and torque specifications for bolt mounting.

Ready to secure your three‑phase protection with a trusted Siemens solution? The HNXD63B800 is built to deliver reliable, sustained overcurrent protection in demanding environments, helping your electrical system run safely and efficiently.