ABB S202U-K3 3A 2-Pole 240 V Circuit Breaker Potential Transformer

Meet the ABB S202U-K3 3A 2-Pole 240 V Circuit Breaker — a precise, dependable protection device built for robust electrical distribution. This genuine ABB component delivers reliable overcurrent protection for 240 V circuits, making it an essential addition to panels, control systems, and small automation setups.

Engineered for space-conscious installations, the S202U-K3 combines a two-pole design with a compact footprint, ensuring you can protect multiple conductors without crowding your distribution board. With a 3 A current rating, it provides clear, predictable tripping behavior for circuits that demand careful current management, helping prevent insulation damage and equipment failures from overloads.

Key features and benefits

• Current rating: 3 A — ideal for protecting low-current control circuits, sensor lines, and auxiliary equipment.
• Poles: 2 — safeguards both live conductors in two-phase (240 V) applications, enhancing safety and reliability.
• Voltage rating: 240 V — suitable for standard 240 V distribution in commercial and light-industrial environments.
• Part number: S202U-K3 — a genuine ABB component with consistent performance and compatibility within ABB systems.
• Application flexibility: Ideal for electrical panels, machine control cabinets, and panel boards where compact, dependable protection is required.

Who benefits from this ABB breaker

Electrical contractors, panel builders, and facility managers working with ABB-based systems will appreciate the reliability and straightforward integration of the S202U-K3. It’s well-suited for protecting low-current control circuits, auxiliary power feeds, and distribution segments within 240 V networks.

Why choose the ABB S202U-K3

ABB brings decades of engineering expertise to this compact protection device. The S202U-K3 delivers predictable performance, solid construction, and compatibility with ABB's wide range of electrical protection solutions. By choosing this part, you’re aligning with a trusted brand that emphasizes safety, consistency, and long-term reliability in panel installations and industrial environments.

Practical tips for use and maintenance

• Verify the circuit’s operating voltage and expected load to confirm the 3 A rating is appropriate for your application.
• Ensure the breaker fits your panel’s enclosure and mounting configuration, and that it aligns with the panel’s protection strategy for 240 V circuits.
• During maintenance, inspect for signs of wear or overheating on the breaker body and terminals; replace if you notice discoloration, cracking, or deformation.
• When sourcing spares or replacements, reference the exact part number S202U-K3 to ensure compatibility with ABB-enabled panels and control systems.

Choose the ABB S202U-K3 3A 2-Pole 240 V Circuit Breaker for precise, reliable protection in 240 V electrical infrastructures. It’s the practical, performance-minded choice for professionals who value consistency, safety, and easy integration within ABB-based configurations.