Crate-type power lightning arrester (oversize box)
Electric surge protector of low-voltage distribution system, which is in the form of a box, is designed according to IEC standard.，It has invalidation detection indication, lightning stroke numbering display,installed overflowing and overheating protection with great lightning current discharge capability. It's applicable to the protection of buildings' general supply system against lightning, as well as Grade 1 and 2 lightning protection of the general supply in building, machine room, plant and enterprise to make sure the safe operation of electronic equipment and other electrical equipment. This lightning arrester is very convenient to be maintained. It connects with the circuit in parallel and has no limit to the power of equipment fixed later.
Model
HD-D380B-DX200
HD-D380B-DX100
HD-D380B-DX80
HD-D380B-DX60
Nominal working
voltage Un
380V
380V
380V
380V
Maximum continuous
working voltage Uc
385V
385V
385V
385V
Nominal discharge current In （8/20μs）
100KA
50KA
40KA
30KA
Maximum discharging current Imax（8/20μs）
200KA
100KA
80KA
60KA
Voltage protection
level Up
4KV
2.5KV
2.3KV
2KV
Prepositive
overflowing protection
125A
125A
125A
63A
External dimension
360*500*160mm
Response time Ta
≤25ns
Operating
temperature range Tup
-40℃至+70℃
Working status indication
Green light means work normally,red light means fault indicaiton.
Section of minimum
installed conductor
6mm2
multi-folded wire
Sheathing material
Metal spraying
Mode of connection
parallel
connection
Protection mode
4+0/3+1/1+1/2+0
Installation method：
Ground the null line repeatedly when Long-distance overhead incoming lines enter buildings.
Plug the power phase line (L) and null line (N）into corresponding connector of the electric surge protector and make sure it's firm and reliable. Connect the ground terminal of arrester with the ground lead of lightning protection well (recommended earth resistance ≤4Ω).
Suggested specification of the lead wire: no less than 6mm2, short and straight.
