Siemens | NGB2B110V | Circuit Breaker | 110A | 2-Pole | 480V

Meet the Siemens NGB2B110V circuit breaker—a robust, purpose-built solution for industrial panels that demand precise protection, dependable performance, and straightforward compatibility. Designed for 480V systems and a demanding workload, this 2-pole unit keeps critical equipment safe while simplifying maintenance and retrofits.

Key specifications

• Amperage: 110 A
• Poles: 2-Pole
• Voltage rating: 480V
• Part reference: NGB2B110V
• Intended use: maintenance, retrofit, and replacement in compatible systems

What sets this Siemens breaker apart

• Exact-fit reference: The NGB2B110V part number is your quickest route to compatibility, ensuring the breaker matches existing panels and protective characteristics.
• Two-pole protection for balanced shutdown: Simultaneous disconnection of both hot legs protects 480V circuits and connected equipment, reducing the risk of side-by-side faults.
• Industrial-grade reliability: Built to withstand the rigors of heavy-load environments, offering consistent performance across maintenance cycles and retrofit projects.
• Versatile application: Ideal for upgrading legacy 480V distribution, motor control centers, or panel boards where robust overcurrent protection is essential.

Practical use cases

• Upgrading aging electrical panels in manufacturing lines that run on 480V three-phase systems.
• Retrofit projects where a precise 110A, 2-pole protection device is required to match existing protection schemes.
• Maintenance replacements in industrial settings to minimize downtime and ensure continued safety for critical loads.

Compatibility and installation tips

Before ordering, verify fit and ratings to ensure seamless integration with your specific panel or switchgear. The NGB2B110V is the most reliable reference for compatibility, so cross-check the part number against your panel documentation. Follow Siemens installation guidelines for safe mounting, electrical connections, and trip settings. If you’re replacing an older breaker, ensure the surrounding protection devices, conductor sizing, and service conditions align with 110 A, 480V, 2-Pole specifications to maintain cohesive protection across the system.