The OMRDON two-stage single-phase/three-phase power surge protection device box is suitable for lightning protection of TN-S, TN-C-S, TT, IT and other power supply systems with AC 50Hz/60Hz, 380V and below. It is used at the junction of LPZO or LPZ1 zone and LPZ2 zone. Its design is in accordance with GB18802.1 and IEC61643-1 technical standards. The lightning protection module has a built-in failure release device. When the surge protector fails due to overcurrent thermal breakdown, the failure release device can automatically disconnect it from the power grid. At the same time, the visual alarm indicator window changes from white (normal) to red (fault), and the visual alarm indicator module can be replaced when there is working voltage. And it is equipped with a digital lightning strike counter, which can conveniently record the number of lightning wave impacts.
Functional characteristics of three-phase power lightning protection box:
1. Equipped with remote signaling terminals, remote monitoring can be achieved.
2. It can withstand up to 40KA/60KA (8/20 μ s) lightning current surge, with a response time of less than 25ns.
3. Equipped with miniature circuit breakers and lightning strike counting functions, the lightning protection box panel indicator lights green (power supply working normally), yellow (lightning protection device working normally), and red (lightning protection box failure).
4. The built-in surge protector has a visual alarm window color indicating the working status of the protection, green (normal) and red (fault).
|
name |
Single phase AC power lightning protection box |
Three phase AC power lightning protection box |
|
model |
OMP-APX40/220 |
OMP-APX40/380 |
|
Test level (according to IEC61643-1) |
II |
|
|
protected mode |
L-PE,N-PE,L-N,N-PE |
|
|
Rated working voltage (Un) |
220V |
380V |
|
Maximum continuous operating voltage (Uc) |
~385V |
~385V |
|
Voltage protection level (Up) at Isn |
≤1.8kV |
|
|
Nominal discharge current (In) |
20kA (8/20μs) |
|
|
Maximum discharge current (Imax) |
40kA (8/20μs) |
|
|
Response time (Ta) |
≤25ns |
|
|
Connecting wire cross-section (L/N) |
≥10mm2 |
|
|
Connecting the cross-section of the grounding wire (PE) |
≥16mm2 |
|
|
Selection of fuses or circuit breakers |
D型32 A~63A |
|
|
Working environment -40 ℃~+85 ℃ |
—40℃~+85℃ |
|
|
Relative humidity ≤ 95% |
≤95% |
|
|
Attachment |
Built in lightning strike counter miniature circuit breaker |
|
|
install |
Wall mounted, screw fixed |
|
|
Remote signaling terminal wiring |
COM: public end, NO: normally closed, NC: normally open |
|
|
housing material |
Outer box: sprayed metal plate; Built in module: flame retardant PBT |
|
|
Product dimensions |
300×220×130mm |
|
|
Test Basis |
GB18802.1、IEC61643-1 |
|
