Siemens | HGB3K070B | Circuit Breaker | 70A | 3-Pole | 600V

Designed to protect high-demand, three-phase circuits, the Siemens HGB3K070B is a dependable 70A, 3-pole circuit breaker rated for up to 600V. Built for service, retrofit, and replacement projects, it ensures continued protection without compromising performance in demanding electrical panels.

• Amperage: 70 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Reference for compatibility: Part number HGB3K070B is your best reference; always confirm fit and ratings prior to ordering.

Why choose this Siemens breaker for your project?

• Exact 3-phase protection for equipment and branch circuits up to 70 amps, enabling reliable shut-off during overloads and faults.
• Consistent Siemens engineering ensures predictable performance and straightforward replacement in compatible panels.
• Clear replacement path during maintenance or retrofit when a matching 600V, 3-pole device is required.

Ideal use cases include panel retrofits in commercial electrical rooms, upgrades to accommodate increased load on three-phase circuits, and serving as a dependable spare for Siemens-based electrical systems. Before you order, verify that your panel and bus configuration match 3-pole 600V devices and that the HGB3K070B is the correct part number for your installation.

• Practical tips
• Keep a labeled spare on hand for quick replacements during routine maintenance.
• Cross-check the panel labeling to ensure the HGB3K070B device is listed as a compatible replacement for your model.
• Follow all relevant electrical codes and perform work with the system de-energized to ensure safety.