product description:
OMRDON Class III Surge Protection Device (SPD) (also known as lightning protection device, lightning arrester, surge protector, overvoltage protector), suitable for AC 380V (50Hz/60Hz) and The following TN-S, TN-CS, TT, IT and other power supply systems are protected by lightning electromagnetic pulse (LEMP) caused by lightning strikes. They are used in the LPZ 2-3 zone or higher interface of the lightning strike zone. The design basis is in accordance with GB18802. 1. The IEC61643-1 technical standard is used for the third-level fine surge protection of the equipment.
working principle:
Surge protector (SPD) is an indispensable device for lightning protection of electronic equipment. Its function principle is that under normal conditions, the surge protector is in a very high resistance state to ensure the normal operation of the power system; when the system circuit When a surge over-voltage or over-current occurs on the SPD, the resistance of the SPD suddenly changes or continues to drop to a low impedance. The SPD is immediately turned on within nanoseconds, and the surge energy is discharged into the earth through the SPD; when the surge is over, The surge protector quickly returns to a high-impedance state, so as not to affect the normal power supply of the system.
Features:
1. Optional remote signal terminal alarm function, convenient for remote alarm monitoring. To
2. It can withstand up to 20KA (8/20μs) lightning current impact.
3. The response speed is fast, and the action response time is less than 25ns.
4. Flame-retardant shell design can be easily installed on 35mm electrical rails.
5. Built-in thermal tripping failure disengagement device, so that the lightning protector can be automatically disconnected when it fails due to overheating or breakdown. To
6. The color of the visual alarm window indicates the working status of the protection, green (normal) and red (faulty). To
| name |
Class III surge protector |
|
| model |
OMP-APM20 |
NPE
|
| Test level (according to IEC61643-1) |
II
|
I |
| Protection mode |
L-PE, N-PE; L-N, N-PE |
N-PE |
| Rated working voltage (Un) |
220～380V |
|
| Maximum continuous working voltage (Uc) |
420V 50Hz/60Hz |
255V50Hz/60Hz |
| Voltage protection level (Up) at Isn |
≤1.2kV |
≤1.2kV |
| Nominal discharge current (In) |
10kA(8/20μs) |
15kA(8/20μs)
|
| Maximum discharge current (Imax) |
20kA(8/20μs)
|
- |
| Lightning impulse current (Iimp) |
- |
12KA(10/350μs) |
| Response time (Ta) |
≤25ns |
≤100ns |
| Selection of backup protection circuit breaker |
D type 16A-25A, |
- |
| Access wire section (L/N) |
≥6mm² |
|
| Connecting ground wire section (PE) |
≥6mm² |
|
| working environment |
-40℃~+85℃ |
|
| Relative humidity |
≤95% |
|
| installation |
35mm standard electrical rail |
|
| Shell material |
Reinforced flame retardant PBT |
|
| Test basis |
GB18802.1, IEC61643-1 |
|
| Item No. |
model |
Remarks |
| 800120 |
OMP-APM20/2 |
OMP-APM20/1+NPE |
| 800121 |
OMP-APM20/1+NPE |
Single-phase 220V use, 1+1 protection mode |
| 800118 |
OMP-APM20/4 |
For three-phase 380V, 4P |
| 800119 |
OMP-APM20/3+NPE |
For three-phase 380V, 3+1 protection mode |
| 800128 |
OMP-FM |
(Optional) Remote signal alarm contact terminal for remote alarm monitoring function. |
Product application and installation location:
OMRDON three-level series of surge protectors are suitable for the LPZ2-3 area or higher interface in the lightning strike area. They are generally used for fine overvoltage protection of electronic equipment to prevent terminal equipment from being interfered by overvoltage. It is level III (D) Overvoltage protector; usually installed in the household distribution box, computer center, information equipment, electronic equipment and control equipment in front of or in the nearest outlet box.
