Siemens | HP3B800 | Circuit Breaker | 800A | 3-Pole | 600V

Meet the Siemens HP3B800 circuit breaker—a purpose-built solution for high-demand, three‑phase power systems. Engineered to protect large electrical loads with precision, this 800 A, 3‑pole unit is designed to operate reliably in industrial environments where uptime and safety matter most. With a 600 V rating, it’s well suited for motor drives, heavy automation equipment, and main feeders that demand solid, dependable protection.

• Amperage: 800 A
• Poles: 3‑Pole
• Voltage: 600 V

Why this model stands out

The HP3B800 is built for longevity and consistent performance in demanding installations. Its Siemens engineering ensures seamless integration with existing Siemens panels and distribution gear, preserving electrical coordination and simplifying maintenance. This isn’t just a drop-in part—it's a carefully matched component designed to operate within the same specifications as your current protection scheme, reducing the risk of compatibility issues during retrofit or replacement projects.

Ideal use cases

• Retrofit projects where a precise 800 A, 3‑pole, 600 V protection is required to match existing infrastructure
• Maintenance replacements for aging panels in manufacturing lines, processing facilities, and large motor control centers
• New builds or upgrades of industrial electrical rooms that power heavy equipment, presses, conveyors, pumps, and drives

Fit, compatibility, and installation guidance

Before placing an order, confirm fit and ratings for your panel. The part number HP3B800 is the most reliable reference for compatibility with Siemens equipment. If you’re replacing a similar Siemens device or upgrading a three‑phase feed, this model offers a straightforward, form‑factor matched solution. Follow Siemens installation guidelines to ensure proper mounting, electrical connections, and safe operation in your specific enclosure and configuration.

What problems this breaker helps solve

• Protects high‑current loads (motors, drives, and feeders) from overload events that could cause equipment damage
• Supports reliable fault isolation in three‑phase systems, helping minimize unplanned downtime
• Provides a compatible, maintenance-friendly replacement path that preserves existing electrical coordination and system behavior

Note: Always verify the exact fit and ratings for your application. The HP3B800 is identified by its part number for compatibility, and ensuring a precise match will help maintain performance, safety, and long-term reliability in your electrical distribution network.