ABB | S1N090TL | Circuit Breaker | 90A | 3-Pole | 480V

Meet the ABB S1N090TL — a purpose-built 90 A, 3-pole circuit breaker designed for 480V three-phase systems. Engineered for dependable overcurrent protection, it fits seamlessly into maintenance, retrofit, and replacement projects where exact specifications matter. With ABB’s trusted footprint, this unit helps keep critical equipment—motors, feeders, and distribution circuits—protected and running smoothly.

Key specifications at a glance

• Amperage: 90 A
• Poles: 3-Pole
• Voltage rating: 480V
• Reference part number: S1N090TL

Why this breaker stands out When you need a reliable part that aligns with your existing ABB equipment, the S1N090TL provides a precise compatibility reference. Its ratings and form factor are chosen to match established ABB panels and switchgear, helping minimize downtime during replacements and streamlining retrofits for 480V three-phase systems.

Fit and compatibility you can trust Before ordering, confirm fit and ratings using the part number S1N090TL as the primary reference. Ensure your installation supports a 3-pole, 480V configuration and that the breaker’s interrupting characteristics meet your system’s fault-current requirements. This diligence reduces the risk of incompatibility and keeps your project on track.

Practical use cases

• Maintenance: Replace aging or failed 3-phase 480V breakers to restore reliable protection and minimize downtime.
• Retrofit: Upgrade legacy panels with a 90 A, 3-pole solution that matches the existing ABB footprint and operational behavior.
• Replacement: Substitutes for degraded S1N-series breakers with identical ratings to maintain system continuity.

Designed for technicians and facility managers who demand exact compatibility, predictable performance, and streamlined ordering, the ABB S1N090TL delivers confident protection for industrial and commercial electrical distributions.