ABB | S4N100BW | Circuit Breaker | 100A | 3-Pole

Meet the ABB S4N100BW, a robust 100A, 3-pole circuit breaker designed for reliable protection in industrial and commercial panels. Built to support maintenance, retrofit, and replacement projects wherever exact specifications are critical, this unit helps you keep systems safe and operational with minimal configuration effort.

• Amperage: 100A
• Poles: 3-Pole
• Part number: S4N100BW — the best reference for compatibility

Note: Confirm fit and ratings before ordering to ensure seamless integration with your panel and electrical system.

Why professionals choose the ABB S4N100BW

• Exact spec alignment reduces the risk of misfit in existing panels, simplifying replacement and retrofits.
• Backed by ABB engineering standards, offering dependable performance within the constraints of your installation.
• Designed to address common maintenance scenarios, including upgrading legacy breakers or replacing failed units during service windows.

Ideal use cases

• Panel upgrades and equipment modernization in commercial or light industrial settings.
• Preventive maintenance where consistent 100A, 3-pole protection is required.
• Emergency replacement for aging or damaged breakers in service fleets.

Practical guidance

• Have the exact part number on hand when planning replacements — S4N100BW is your quickest compatibility reference.
• Verify the panel model and ratings to ensure the 100A, 3-Pole configuration matches your system requirements.
• Store spare breakers in a clean, dry environment to preserve label integrity and performance readiness.