ABB S202-K2A 2-Pole 2A Miniature Circuit Breaker
The ABB S202-K2A is a high-performance miniature circuit breaker (MCB) designed to provide reliable protection for electrical circuits in commercial and industrial applications. Part of ABB’s System pro M compact S200 series, this 2-pole breaker is engineered to safeguard against overloads and short circuits, ensuring the safety and efficiency of your electrical systems.
Key Features
- Rated Current: 2 Amperes
- Number of Poles: 2
- Tripping Characteristic: K-Curve
- Rated Operational Voltage: 400V AC (IEC/EN 60898-1), 440V AC (IEC/EN 60947-2)
- Breaking Capacity: Up to 6 kA at 230/400V AC
- Mounting: DIN Rail
- Standards Compliance: IEC/EN 60898-1, IEC/EN 60947-2, UL 1077
Design and Performance
The S202-K2A features a dual tripping mechanism: a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection. This design ensures rapid response to electrical faults, minimizing potential damage to equipment and reducing downtime.
With its K-Curve tripping characteristic, the breaker is particularly suitable for protecting circuits with inductive loads, such as motors and transformers, where inrush currents are common. The current-limiting design enhances safety by reducing the energy let-through during short circuit events.
Installation and Compatibility
Designed for ease of installation, the S202-K2A is DIN rail mountable, allowing for quick and secure attachment to standard mounting rails. Its compact dimensions (35 mm width, 69 mm depth, and 88 mm height) make it suitable for installations where space is limited.
The breaker is compatible with a range of accessories, including auxiliary contacts, alarm contacts, and shunt trips, providing flexibility to meet specific application requirements. Additionally, it supports reverse feed applications, offering versatility in various electrical configurations.
Environmental and Safety Standards
Operating within a temperature range of -25°C to +55°C, the S202-K2A is built to perform reliably under diverse environmental conditions. It complies with international standards, including IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077, ensuring adherence to safety and performance requirements.
With an IP20 degree of protection, the breaker is safeguarded against solid objects larger than 12.5 mm, making it suitable for indoor installations. When installed within an enclosure with a cover, it achieves an IP40 rating, offering enhanced protection.
Conclusion
The ABB S202-K2A 2-Pole 2A Miniature Circuit Breaker is a reliable and efficient solution for protecting electrical circuits in commercial and industrial settings. Its robust design, compliance with international standards, and compatibility with various accessories make it a versatile choice for ensuring the safety and performance of your electrical systems.
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