GreenBrook Electrical has over 60 years of experience in the electrical industry, continuing to be ahead of the competition. Since their beginnings, as a manufacturer of electromechanical relays, they have grown through product development and innovation to boast a comprehensive range of electrical accessories from RCD sockets to smoke alarms. The Greenbrook K21-MP is a PowerBreaker unit which has been tested to comply with the new BS7288 regulations. This product has a voltage of 230V, has a metal clad finish, a rated current of 13A and is double pole.