The MK LN5780 LN5780s RCD is a high-quality circuit breaker designed by the reputable brand MK in the United Kingdom. With a 80 amp capacity and 4 poles, this RCD (Residual Current Circuit Breaker with Overload protection) provides reliable protection against earth faults and overload currents. Perfect for use in various electrical systems in businesses, offices, and industrial settings, this circuit breaker ensures safety and efficiency in circuit protection.