Siemens | HNX3B800 | Circuit Breaker | 800A | 3-Pole | 600V | Bolt-On

Siemens HNX3B800 — 800A, 3-Pole, 600V Bolt-On Circuit Breaker

The Siemens HNX3B800 circuit breaker is your go-to solution for reliable, high-capacity protection in demanding electrical distributions. Designed for maintenance, retrofit, and replacement projects, this 800A, 3-pole unit delivers solid performance where exact ratings and compatibility matter most.

Key features at a glance

• Amperage: 800 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Reference: Part number HNX3B800 for precise compatibility

Why this Siemens HNX3B800 stands out

Built by Siemens, this bolt-on circuit breaker combines rugged construction with dependable protection for three-phase 600V systems. The 800A rating makes it well-suited for feeder circuits, main distribution panels, or service entrances in industrial facilities and large commercial operations. Its bolt-on design supports straightforward field installation and replacement when panels are configured for bolt-on devices, reducing downtime during critical maintenance windows.

Ideal use cases

• Retrofit or replace aging 800A, 3-pole breakers in industrial control panels
• Upgrade electrical distribution to meet current safety and protection standards
• Install in new or existing 600V, three-phase systems that require robust overcurrent protection
• Maintenance projects in manufacturing facilities, data centers, and large commercial buildings

Compatibility and installation guidance

To ensure a perfect fit, always verify the panel’s specifications align with an 800A, 3-pole, 600V bolt-on device. The best reference for compatibility is the part number HNX3B800. Before ordering, confirm that the panel’s mounting provisions and electrical ratings match this breaker’s 3-pole configuration and 600V class. Bolt-on mounting typically requires appropriate hardware and panel clearance; ensure these are in place to avoid installation delays.

Maintenance, safety, and care

• Use as part of a planned maintenance program for critical power distribution
• Inspect for signs of wear, overheating, or nuisance tripping during routine checks
• Replace only with the matching HNX3B800 part to preserve protection coordination

With its precise specifications and Siemens engineering, the HNX3B800 is a purpose-built choice for protecting high-capacity, three-phase 600V circuits. When you need a reliable, plug-and-play replacement that aligns with your existing bolt-on infrastructure, this 800A, 3-pole unit meets the mark—backed by Siemens’ durability and performance for long-term electrical safety and system reliability.