ABB Protecta Plus Blank Miniature Circuit Breaker is suitable for use with 250A DIN rail mounting distribution boards. This distribution solutions upgrade power in buildings to create safer, more energy efficient and more productive environments. With the new Protecta Plus system, ABB has developed a new and personalised series of MCB distribution boards which can be expanded over time. The wide internal accessibility ensures a quick and easy approach to the electrical components assembly. The neutral and earth bars positioned on the inner sides of the distribution board are completely isolated to ensure better safety.