Siemens | HGB1K030B | Circuit Breaker | 1-Pole | 347V

Meet the Siemens HGB1K030B circuit breaker—a purpose-built, single-pole protective device engineered for dependable overcurrent protection in commercial and industrial electrical systems. With a 347V rating, this breaker is designed to safeguard a dedicated circuit, helping prevent damage from surges and faults while keeping your panel organized and compliant with existing Siemens infrastructure.

Key specifications

• Part number: HGB1K030B
• Poles: 1-Pole
• Voltage rating: 347V
• Applications: maintenance, retrofit, and replacement where matching specs are required
• Compatibility note: Confirm fit and ratings before ordering; the part number is the best reference for compatibility

Why this Siemens breaker stands out

Designed to integrate seamlessly with Siemens panels and compatible enclosures, the HGB1K030B delivers reliable, fast-acting protection for a single circuit. Its 347V rating makes it a precise match for systems that operate at higher line-to-neutral or line-to-line voltages common in commercial settings, reducing the risk of nuisance tripping while ensuring safe operation under peak demand conditions. By prioritizing exact specifications and easy retrofitting, this breaker minimizes compatibility headaches during maintenance or upgrades.

Ideal use cases

• Retrofits in existing Siemens-powered panels where a 1-pole, 347V solution is needed
• Maintenance replacements to restore original protection characteristics without changing panel configuration
• Single-circuit protection in commercial or light-industrial installations where precise voltage and pole requirements are essential

Practical guidance for selection and installation

To ensure reliable performance, always verify that the breaker’s voltage rating and pole configuration match the circuit you intend to protect. Use the part number (HGB1K030B) as the primary reference for compatibility with your Siemens panel or enclosure. Before installation, power down the equipment, confirm there are no outstanding fault conditions in the system, and ensure all connections are secure and torque-appropriate according to your panel’s guidelines. If your configuration changes or you’re performing a full retrofit, this 1-pole 347V device provides a precise, straightforward upgrade path without introducing unnecessary complexity.

Informed choice for safer, smarter panels

Choosing the Siemens HGB1K030B means aligning with a trusted protection solution that emphasizes exact specifications and straightforward compatibility. It’s ideal for electricians and facility managers who value predictable performance, simplified ordering (via the definitive part number), and a solution that slots neatly into established Siemens-based electrical ecosystems. If you’re evaluating options for a single-pole, high-voltage protective device, this model offers a well-matched combination of form, function, and reliability that supports safer, more efficient electrical operation.