Omrdon Technology 
OMP-APK25/4 Power Surge Protector, T1,25KA (10/350μs) Surge Protector, Class 1 Surge Protector
Product Description:
OMRDON (OMRDON) Class I Surge Protection Device (Surge Protection Device, or SPD) (also known as power supply lightning protector, power supply lightning arrester, surge protector, overvoltage protector), its design basis in line with GB and IEC technical standards; applicable to AC 380V (50Hz/60Hz) and below TN-S, TN-C-S, TT, IT and other power supply line system of lightning electromagnetic pulse (LEMP) protection, for lightning strike area of the LPZOA zone or LPZOB zone and LPZ1 zone interface.
Functional Features:
- Optional telecommunication terminal alarm function, easy to remote alarm monitoring
- Withstand up to 25KA (10/350μs) lightning current shock.
- Fast reaction speed, action response time is less than 25ns.
- Flame retardant housing designed for easy installation on 35mm electrical rails.
- Built-in thermal release failure disengagement device, so that the protector can be automatically disconnected when it fails due to overheating or breakdown.
- The visual alarm window color indicates the working status of the protection, green (normal), red (fault).
- Reinforced flame retardant PBT housing
Typical Applications:
- Apply to the LPZOA zone or LPZOB zone and LPZ1 zone of the lightning strike area, and install in parallel in the main distribution cabinet of the low-voltage entry end of the buried through-pipe feeder to do the first level of lightning protection.
Technical Parameters
name (of a thing) | Class I Power Surge Protector |
typology | one-port |
Experimental level | Class I |
model number | OMP-APK25/4 |
item number | 800010 |
protected mode | L-PE , N-PE |
Rated Working Voltage | 220V~380V |
Maximum continuous operating voltage (Uc) | 385V 50Hz/60Hz |
Pulse withstand current (In) | 25KA (8/20μs) |
Lightning impulse current (Iimp) | 25KA (10/350μs) |
Voltage protection level Up (8/20μs) | ≤2.2KV |
response time | 25ns |
Size | 144*90*65mm |
Backup Protector Selection | D type 63A-125A/35KA |
Connection wire cross-section (L/N) | ≥10mm² |
Connection to grounding conductor cross-section (PE) | ≥16mm² |
working environment | -40℃~+85℃ |
relative humidity | ≤95% |
Installation | 35mm standard electrical rail |
Housing Material | Reinforced flame retardant PBT |
Test basis | GB/T18802.11、IEC61643-11 |
Simulated Lightning Impact Test
Product Dimension Drawing
Installation Notes:
1. This SPD should be installed in parallel, in general, only need to connect any one of the two terminals can be connected, can also be connected by double wiring (Kevin wiring method). The connecting wires are required to be firm and reliable, and are required to be short, thick and straight.
2. When installing, please connect according to the installation schematic, where L1, L2, L3 are phase wires, N is zero wire, PE is ground wire, do not misconnect. After installation, close the automatic circuit breaker (fuse) switch.
3. It is recommended to connect fuses or automatic circuit breakers in series at the front of the SPD. Ensure to avoid fire caused by short-circuit after deterioration of the SPD.
4. Remember not to work with electricity, the power supply must be cut off before installation, it is strictly prohibited to operate with electricity.
5. The grounding must be good and in line with the relevant national lightning protection standard requirements.
6. The equipment needs to be inspected regularly and must be replaced immediately after product deterioration.
