Fehlerstromschutzschalter

Structure and working principle This series of leakage circuit breakers, mainly by electronic leakage circuit breakers zero sequence current transformer leakage of electronic control and tripping device with overload and short circuit protection circuit breaker. All components installed in a plastic casing, its structure and principle as shown in figure 2. When there is protection circuit or personal electric leakage current and leakage current action to zero sequence current transformer, the secondary winding will output a signal, and through the leakage tripping device to cut off power supply circuit breaker, thus plays leakage and shock protection. Product specifications and parameters Basic specifications and parameters 1 leakage circuit breakers biggest break time see table 1 I train making time making maximum points I S I train n n 0.25 5In A 21 train I train n any value than 0.1-0.04 0.03 - I train n > 0.03 any value 0.2 0.1-0.04