Siemens | HMX3B700 | Circuit Breaker | 700A | 3-Pole | 600V

For demanding industrial environments where robust overcurrent protection is non-negotiable, the Siemens HMX3B700 circuit breaker delivers dependable performance when you need it most. This 3-pole, 700-amp, 600-volt device is engineered to shield heavy-load electrical systems from faults while minimizing downtime and disruption to operations.

Key specifications

• Amperage: 700A
• Poles: 3-Pole
• Voltage: 600V

What sets this breaker apart

Designed for maintenance, retrofit, and replacement projects where exact specifications matter, the Siemens HMX3B700 provides reliable protection for multi-phase power distribution. Its three-pole configuration ensures balanced protection across all three conductors, helping prevent unbalanced fault conditions and enabling safer shutdowns. Built by Siemens, a trusted name in industrial electrical protection, this breaker is tuned for compatibility with Siemens panels and infrastructure, supporting smoother installs and fewer unexpected compatibility issues.

Ideal use cases

• Maintenance and service of 3-phase 600V electrical systems in manufacturing environments.
• Retrofit projects to upgrade protection for high-load feeders and critical machinery.
• Replacement of worn or obsolete breakers in Siemens-compatible equipment, ensuring continuity without compromising safety.
• New or existing installations where a 700A, 3-pole, 600V protection device is required to meet system demands.

Compatibility and ordering notes

Part number reference: The part number is the best reference for compatibility. HMX3B700 should match the existing specification for replacement or retrofit. Notes indicate to confirm fit and ratings before ordering to ensure seamless integration with your panel and downstream devices.