ABB S203U-K2 2A 3-Pole 240 V Circuit Breaker

Meet the ABB S203U-K2 2A 3-Pole 240 V Circuit Breaker—a precise, compact solution engineered for reliable three-phase protection at 240 volts. With a dedicated 2 A current rating across three poles, this breaker ensures all phases trip together, safeguarding downstream equipment from overloads and short circuits while keeping your distribution running smoothly.

Why this matters

• Three-pole synchronized protection: Disarms all live conductors in unison, reducing arc risk and protecting three-phase equipment on every phase.
• Exact 2 A protection: Ideal for smaller load circuits, control panels, and instrumentation networks that demand tight, predictable current limiting.
• Compact, panel-friendly design: A space-efficient choice that fits neatly into tight distribution panels without sacrificing performance.
• Dependable ABB build quality: Designed for consistent performance over time, backed by ABB’s engineering standards and reliability.

Ideal use cases

• Small three-phase motor drives and pumps in light industrial settings operating at 240 V.
• Three-phase distribution sections in commercial HVAC or processing panels where precise protection is critical.
• Control panels that require synchronized disconnection across all three hot lines to maintain safe, predictable shutdowns.

Technical snapshot

• Current rating: 2 A
• Poles: 3
• Voltage rating: 240 V
• Part number: S203U-K2

Practical considerations and installation tips

• Ensure your panel and busbar configuration are compatible with the ABB S203U-K2 series and its three-pole layout.
• Install by qualified personnel in accordance with local electrical codes and ABB installation guidelines to guarantee proper wiring of all three poles.
• Periodically inspect terminals and the breaker housing for signs of wear or overheating to maintain reliable performance.

For projects requiring dependable, low-current, three-phase protection at 240 V, the ABB S203U-K2 2A 3-Pole 240 V Circuit Breaker delivers targeted protection, clear trip behavior, and seamless integration into your electrical distribution strategy.