2. Technical data
NBTL circuit breaker with residual current protection is a high-performance adjustable circuit breaker with
triple protection functions of leakage, overload and short circuit. lt is applicable to AC 50/60Hz and rated
voltage230/240V. Places with rated current of 60A and below. It is mainly used for electric leakage overload and
short circuit protection of lighting, meter boxes, distribution lines and equipment of residential buildings, and
office buildings, and can also be used for infrequent operation and switching of lines under normal conditions.