Omrdon Technology 
T1+T2 level lightning surge protection box OMP-APX40/380-P, 40KA power supply lightning protection box, lightning strike date record, remote monitoring, for low-voltage power distribution cabinet/box surge protection.
Products
OMRDON OMP-APX40/380-P, T1+T2 level 40KA power supply lightning protection box is a set of high-intensity lightning current discharge, remote monitoring and remote alarm in one of the high-performance surge protector. The product is designed for the lightning protection needs of modern electrical systems, applicable to all types of low-voltage distribution systems of AC 380V and below, including TN-S, TN-C-S, TT, IT and other systems. Its core design combines T1 level (10/350μs) direct lightning protection with T2 level (8/20μs) induced lightning protection to provide comprehensive and reliable over-voltage protection at the junction of LPZ0 and LPZ1/LPZ2 areas.
The product strictly follows GB/T18802.11 and IEC61643-11 and other domestic and international standards, with built-in failure disengagement device, which automatically isolates the module from the power grid when it fails due to overcurrent, overheating, or aging, accompanied by a red fault indicator warning, effectively preventing secondary accidents triggered by the failure of the protector. In addition, the integrated high-precision lightning strike recorder can record in detail the time and number of each lightning strike event, LCD screen, data query at any time, for system operation and maintenance and lightning risk analysis to provide a reliable basis.
Whether in communication base station, power distribution system, industrial automation equipment, or intelligent building, traffic signal system, T1+T2 40KA power supply lightning protection box can provide users with stable, safe and intelligent lightning protection solutions.
Functional Features:
✅ Dual protection for safety and security
- T1+T2 level of protectionCombination of Class I (10/350μs) and Class II (8/20μs) lightning protection technology to provide full lightning current diversion and voltage limitation.
- high throughput capacity: Maximum withstand 40KA (8/20μs) lightning current impact, response time ≤ 25ns, residual voltage as low as ≤ 1.5KV.
✅ Intelligent monitoring at a glance
- Built-in lightning strike recorderAccurately record the number of lightning strikes and time (year/month/day/hour/minute/second), support storage of 5000 records, convenient for operation and maintenance and fault analysis.
- Bi-Color Indicator LightThe real-time status can be seen at a glance: green color indicates normal operation and red color indicates module failure.
- Remote communication interface: Support COM/NO/NC signal output, which can realize remote monitoring and alarm.
✅ Robust and widely applicable
- Protection class IP55: Waterproof and dustproof, suitable for outdoor or harsh electrical environments.
- Wide temperature range: -40℃ ~ +85℃, adaptable to a variety of climatic conditions.
- Automatic disengagement mechanism: Automatic disconnection from the grid in case of lightning protection module failure to avoid fault expansion.
Typical application scenarios:
- Communications infrastructure: Provides main-level lightning protection for AC distribution systems of mobile communication base stations, fiber optic relay stations, and microwave stations to ensure continuous network operation.
- Data centers and server rooms: Installed on the incoming side of the power distribution cabinet, it protects servers, storage and network equipment from lightning overvoltage damage.
- Industrial automation systems: For PLC control cabinets, inverters, and main power inlets of production lines to prevent production interruptions and equipment damage caused by lightning strikes.
- New energy facilities: Provide a reliable lightning current discharge channel for the AC side of PV power station inverters and charging pile distribution system.
- Intelligent Buildings and Utilities: Used for power protection of building main distribution box, security system, elevator machine room, to enhance the overall building electrical safety.
- transportation system: Protect critical facilities such as highway tunnel power, signal light control cabinets, and rail transit auxiliary power equipment.
Lightning strike recorder commissioning instructions:
1. Records search
In the dormant state, randomly press the ”function” key once to wake up, two characters in the lower left corner of the display, ”y” when it means ”year, month and day”, ”H” when it means ”hours, minutes and seconds”. When ”y” means ”year, month and day”, ”H” means ”hour, minute and second”. A lightning strike record is displayed in two frames, the first frame displays ”number of lightning strikes“ and ”year, month and day”, which is displayed for 5 seconds; the second frame displays "number of lightning strikes" and "hours, minutes and seconds"; the second frame displays "number of lightning strikes" and "hours, minutes and seconds". The second frame displays "number of lightning strikes" and "hours, minutes and seconds" for 5 seconds, cycling through the display twice. Before dormant, press "down-" key to turn page forward, press "up+" key to query backward, no operation within 20 seconds, enter dormant state. If the number of lightning strikes is 0, there is no date and time display.
2. Clock calibration
In hibernation state, press the ”school time” key screen is awakened, the lower left corner of the screen ”y” is the ”year, month and day”, and the ”year” number is flashing; you can use the ”up +” or ”down -“ key to enter the screen, the "year" number is flashing; you can use the "up +" or "down -" key to enter the screen. The number of "year" is flashing; you can press "up+" or "down-" key to enter the "year".
Press the ”Calibrate” key to correct the ”Day of the month”. Press ”Calibrate Time” key to calibrate ”month and day”. After that, press the ”Calibration” key again, it will go to the second frame to calibrate the "hours, minutes and seconds", after the calibration is completed, press the "Calibration" key again, it means that the calibration is completed.
3. Counting Zero
Lightning strike recorder can store 5000 records, when the record is almost full to zero the recorder, or to set a new record start time, also need to record the recorder ”zero” operation. In the dormant state, press the “zero” key, in order to avoid misuse, the first time you press the “zero” key for three seconds, and then the second time you press and hold down the “zero” key for two seconds after the validity.” After "Zero" is pressed, the lightning strike record is no longer found, and the lightning strike count is displayed as 0.
Technical Parameters
| Type | omp-apx40/380-p |
| Test level | ClassⅠ+Ⅱ / T1+T2 |
| protected mode | L-N, N-PE |
| Nominal Operating Voltage (Un) | ~220VAC (L-N, 50/60Hz) |
| Maximum Continuous Operating Voltage (MCOV) | ~385VAC ( L-N), ~255VAC (N-PE) |
| Voltage Protection Level (VPR) | ≤1.8KV (L-N), ≤1.5KV (N-PE) |
| Nominal discharge current (In) | 20KA@8/20μs |
| Maximum discharge current (Imax) | 40KA @8/20μs |
| Lightning Impulse Current (Iimp) | 15KA@10/350μs |
| Response Time (Ta) | ≤25ns |
| Maximum Access Wire Cross Section (L/N) | 35mm2 |
| Selection of back-up protection openings | D Type 25A ~ 32A |
| Maximum number of lightning strike counts | 9999 times. |
| Record the minimum induced current | 200A@8/20μs,1kA@10/350μs |
| Counter Sensitivity | 0.2KA@8/20μs |
| Lightning strike recording time | Year Month Day Hour Minute Second Y M D H m s |
| Number of lightning strike records stored | 5000 items (built-in E2ROM memory, power-down memory) |
| working environment | -40℃ ~ +85℃,30-90% |
| Shell protection grade | IP55 |
| Telecommunication Terminal Wiring | COM: Common, NO: Normally open, NC: Normally closed |
Simulated Lightning Impact Test
Product wiring schematic and dimensional drawings
Production Pictures
📦 Precautions before installation
- Be sure to install under power failure, and strictly prohibit operation with electricity.
- Use multi-stranded copper-core conductors conforming to specifications with a recommended cross-sectional area of ≥16 mm².
- It is recommended to use with D type 25A~32A backup protection air switch.
🔧 Introduction to installation steps
- Select the mounting location (close to the incoming terminal or the front of the unit is recommended).
- Connect L, N, PE wires correctly and tighten the terminals.
- Turn on the power and observe if the indicator light is green.
- For remote alarm, connect COM/NO/NC to the monitoring system.
📅 Instructions for use of the lightning strike recorder
- Inquiry RecordPress the “Function” key to wake up, the screen displays the time and number of lightning strikes in two screens.
- time calibrationPress the “Calibration” button to enter the calibration mode and set the year, month, day, hour, minute and second.
- Record clearingPress and hold the “Zero” button (anti-touch design) to clear the record and reset the counter.
Maintenance and Troubleshooting
🛠 Routine maintenance
- Periodically check for loose wiring and normal indicator lights.
- Clean the housing to ensure good ventilation and heat dissipation.
- For areas with frequent lightning strikes, professional inspection is recommended every 1-2 years.
🚨 Common Troubles and Handling
| impunity | Possible causes | Recommendations for handling |
|---|---|---|
| Red light always on | Lightning protection module failure/wiring sequence error | Check the wiring or contact technical support immediately |
| Remote Alarm Trigger | Abnormal wiring or module failure | Check the wiring or contact technical support |
| No display on logger | The built-in lithium battery of the logger is low or exhausted (3-5 years of normal use). | Please disassemble the small box behind the front cover panel of the case, replace the battery (CR123A) and the display lights up, if there is no change, please contact technical support. Note: Please disconnect all mains power before operation, be sure to confirm with an electric pen or multimeter. |
