Siemens | NGB2B030 | Circuit Breaker | 30A | 2-Pole | 347V

Siemens NGB2B030 Circuit Breaker delivers precise overcurrent protection for 347V, two-pole circuits. Engineered for reliability, it’s a dependable choice for maintenance, retrofit, and replacement projects where exact specifications matter—helping you restore protection quickly and with confidence.

Key specifications at a glance

• Amperage: 30A
• Poles: 2-Pole
• Voltage: 347V
• Part number: NGB2B030
• Recommended use: maintenance, retrofit, and replacement where matching specs are required

Why this Siemens breaker stands out

Placed in compatible Siemens panels, the NGB2B030 provides reliable, predictable protection for 347V distribution. Its two-pole design ensures both hot legs trip together, enhancing safety and minimizing the risk of arc faults in high-voltage applications. Because the part number is your best reference for compatibility, you can confidently match it to existing Siemens setups without guesswork.

Ideal use scenarios

• Retrofits in commercial or light industrial panels that operate on 347V systems
• Replacement for aging breakers in serviceable Siemens electrical install bases
• Maintenance projects where exact 30A, 2-Pole protection is required for 347V circuits

Installation and compatibility tips

• Always confirm fit and ratings before ordering—use the part number NGB2B030 as the primary compatibility reference
• Inspect panel labeling and ensure the breaker type aligns with the panel’s listing and electrical code requirements
• Handle with care to preserve the integrity of the push-to-seat mechanism and ensure secure terminal connections

When you need a dependable, purpose-built solution for 347V two-pole protection, the Siemens NGB2B030 delivers clear, controlled protection that keeps critical circuits safe and running smoothly.