AFDD Ex9NLA EL 1P+N B25 A 30mA

Voltage dependent Arc Fault Detection Circuit-Breakers with Residual Current Operated function Ex9NLA EL are suitable for domestic as well as industrial applications. They are based on electronic evaluation principle for more accurate measuring of residual current. It provides overload, short circuit, leakage protection and arc fault detection. This device off ers full protection for all types of applications in 3-module width solution. These devices also do not suff er with magnetization of the tripping unit. Thus, there is no mandatory testing period, but they must be tested regularly. Local law or regulations may apply on utilization and testing period. The recommendation is to test it every 6 months in fair environment and every month in heavy condition.