KXBY1-C surge protective device series:
Application:
KXBY1-C series surge protective device apply to TT,IT,TN-S,TN-C,TH-C-S etc electric supply system with AC50/60Hz,voltage less than 230V/400V, can be equipotential connecting when thunderstrike, its design according to criteria: GB18802.1,GB50057, maximum can release 40kA thunderstrike over current, mainly used to protective low voltage user electric apparatus, . Discharge energy into earth rapidly once thunderstrike caused overvoltage or operation over voltage, makes electric grid after over voltage impact still can lower than the specific maximum over voltage, prevent electric apparatus impact by thunderstrike overvoltage or operation overvoltage.
Model No. and meaning:
Product feature:
1. Modularization: No need cut off power supply when replace protection unit
2. Discharge electric current: Maximum can bear 40Ka(8/20us)
3. Swift: Operate action time less than 25ns
4. Status indicate: status indicator green color means surge protective device working normally; red color means fault.
Overall and installation size:
Main technical parameter:
Level specification Item parameter | KXBY1-C(second class protection) | |
Pole | 1P, 1P+N, 2P, 3P, 3P+N, 4P | |
Rated working voltage Un(V) | 230/400 | |
Nominal discharge current In(8/20us)Ka | 20 | |
Maximum discharge current Imax(8/20us)Ka | 40 | |
Maximum continuous working voltage Uc(V) | 275,320,385,420,440 | |
U1mA varistor voltage(V) | 430,510,620,680,710 | |
Protection level (Up)Kv | 1.5,1.6,1.8,2.0,2.2 | |
Response time(ns) | ﹤25 | |
Leakage current 70% Uc 1mA | ﹤20uA | |
Testing classification | II degree | |
Protection degree | IP20 | |
Surrounding limiting temperature | -40～+70℃ | |
Isolation moulded case material | PBT/PA66 | |
Flame retardant rating, according to UL94 | VO | |
Install form | 35mm standard electric rail | |
Moulded case color | Red/grey | |
Suggestion fuse or circuit breaker (A) | 16-40 | |
Suggestion connecting wire diameter(mm) | Phase wire, null line | 4-16 rigid wire |
Ground lead | 4-16 double colors | |
Testing standard | GB18802.1, GB18802.21 | |
Installation guide and electric apparatus connecting:
C degree surge protective device can be installed in uplink line end which need protect user apparatus (connect pull-in line downlink immediately), it's a grounding connecting device of connecting outer conductor(L) or neutral line(N) and user apparatus. Can be installed in the junction of LPZOA or LPZ1, normally install into incoming wire low voltage main distribution box.
