# Miniature Circuit Breaker The ABB S281W-K4 Circuit Breaker is a high-performance miniature circuit breaker designed to provide reliable protection against overloads and short circuits in electrical installations. With its compact design and advanced technology, this circuit breaker ensures optimal safety and efficiency in a wide range of applications. ## Key Features • **Rated Current:** 4 A, ensuring effective protection for low-current electrical circuits. • **Voltage Rating:** 230/400 V AC, ideal for residential and commercial electrical systems. • **Pole Configuration:** 1-pole, suitable for single-phase circuits, offering straightforward installation. • **Tripping Characteristics:** Type B, designed for general applications with moderate inrush currents. • **Standards Compliance:** Conforms to IEC/EN 60898 standards, ensuring safety and reliability in operation. ## Applications • **Residential Installations:** Perfect for protecting lighting and socket circuits in homes. • **Commercial Use:** Suitable for small office buildings, retail environments, and light industrial applications. • **Compatibility:** Designed to work seamlessly with ABB’s range of electrical products, enhancing system integration. • **Environmental Suitability:** Operates efficiently in a variety of environments, including temperature ranges from -25°C to +60°C. ## Benefits • **Enhanced Safety:** Prevents electrical fires and equipment damage through reliable overload and short circuit protection. • **Compact Design:** Space-saving form factor allows for easy installation in consumer units and distribution boards. • **Durability:** Built with high-quality materials ensuring long-lasting performance and reduced maintenance requirements. • **Cost-Effective Solution:** Reduces potential downtime and repair costs by providing robust protection for electrical systems. --- *Product information compiled with AI assistance for reference purposes.*