Siemens | NGB3B100L | Circuit Breaker | 100A | 3-Pole | 600V

Siemens NGB3B100L is a rugged, reliable circuit breaker designed for demanding 3‑phase electrical systems. With a 100A rating, three poles, and a 600V maximum, it provides solid protection for mid‑ to large‑sized industrial and commercial panels where dependable fault isolation is essential.

Key specifications at a glance

• Amperage: 100A
• Poles: 3‑Pole (three‑phase protection)
• Voltage rating: 600V
• Part reference: NGB3B100L

Ideal use cases

• Maintenance: Replace worn or failing breakers in existing Siemens panels to restore original protection and performance.
• Retrofit: Update legacy systems to meet current electrical codes while preserving panel architecture and wiring layouts.
• Replacement: Swap in a compatible unit when a failed breaker disrupts critical processes in industrial or commercial settings.

Why choose this Siemens model

• Exact compatibility reference: The best way to ensure a risk‑free fit is to match the part number—NGB3B100L. Always verify against your panel manufacturer’s documentation before purchasing.
• 3‑pole design for balanced protection: Suitable for clean, stable three‑phase distribution, helping maintain consistent equipment performance and safety.
• Industrial reliability: Built to withstand the demands of commercial and light‑industrial environments, providing dependable interruption of fault conditions.

Practical guidance for installation and selection

• Before ordering, confirm fit and ratings with your panel specifications and the installer’s documentation. The NGB3B100L is optimized for Siemens systems and compatible configurations, but exact fit depends on your equipment model.
• Work with a licensed electrician to ensure correct wiring, proper clearance, and compliance with electrical codes and lockout/tagout procedures during installation.
• Plan for future serviceability: label the breaker clearly with its amperage, voltage rating, and part number to simplify replacement and audits.

Progress your electrical modernization with confidence by choosing the Siemens NGB3B100L—an industry‑trusted 100A, 3‑pole, 600V circuit breaker designed for straightforward maintenance, seamless retrofits, and reliable replacements in demanding electrical environments.