Siemens | NGB1K070B | Circuit Breaker | 70A | 1-Pole | 347V

Engineered by Siemens, the NGB1K070B circuit breaker delivers dependable overcurrent protection for 347V circuits in commercial and industrial panels. With a 70A rating and a single-pole design, this unit is purpose-built for maintenance, retrofit, and replacement projects where exact specs matter.

Key specifications

• Amperage: 70A
• Poles: 1-Pole
• Voltage rating: 347V
• Part number: NGB1K070B

Why this Siemens breaker stands out

• Genuine Siemens part: Designed to integrate seamlessly with Siemens panels and distribution systems, ensuring reliable performance and consistent protection.
• Exact match for 347V applications: Ideal for circuits in commercial environments where 347V systems are used, providing proper protection without compromising compatibility.
• Focused on replacement scenarios: A straightforward option for maintenance, retrofits, or replacements when your setup requires the same specifications and part reference.

Ideal use cases

• Replacing worn or damaged breakers in Siemens-compatible panels serving 347V circuits.
• Retrofit projects where a 70A, 1-pole solution matches existing wiring and load requirements.
• Maintenance tasks to restore defined protection in commercial electrical distributions.

Installation tips & compatibility

• Verify fit and ratings before ordering: Use the part number NGB1K070B as the primary compatibility reference to ensure it matches your panel model and circuit requirements.
• Check panel labeling: Confirm that a 70A, 1-pole, 347V breaker is suitable for the intended circuit and enclosure before installation.
• Plan for replacement life: Align replacement timing with panel refresh intervals to minimize downtime and maintain protective coordination.