KNBL6-63 series leakage breaker is suitable for the leakage protection of the line of AC 50/60Hz, rated voltage single phase 240V, rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will automatically cut off the power within 0.1s to protect human safety and prevent the accident due to the current leakage. KNBL6-63 series leakage breaker can protect against overload and short-circuit. It can be used to protect the line from being overloaded and short circuited as well as infre-quent changeover of the line in normal situation. It complies with standard of IEC/EN61009-1 and GB16917.1. Basic specification and main parameters: Frame class 63A Rated working voltage 240V Rated frequency 50/60Hz Rated working current 6,10,16,20,25,32,40,50,63A Rated residual operating current 0.01,0.03A Rated residual un-operating current 0.005,0.015 Sensibility AC Type Maximum operating time I?n t=0.4s , 5I?n t=0.01 Instant release type B,C type Limiting value of un-operating current 6In Rated limiting short-circuit current 10000A Pole number 1P+N Mechanical life 4000 Electric life 80000 The over-current tripping unit protection feature: Sequence NO. Release Test current I/In Start state Tripping time Expected restlt 1 C 1.13In Cold state t=1h Not tripping 2 C 1.45In Start right after the serial NO.1 test t<1h tripping 3 C 2.55In Cold state 1s<t<60s tripping 4 C 5In Cold state t=0.1s Not tripping 5 C 10In Cold state t<0.1s tripping