1. Киришүү
The EARU Surge Protective Device (SPD) is engineered to safeguard electrical systems and connected equipment from damage caused by lightning strikes and instantaneous over-voltage events. This manual provides essential information for the safe and effective installation, operation, and maintenance of your SPD.
This device is available in various configurations for both AC (Alternating Current) and DC (Direct Current) applications, with different pole counts and current ratings to suit diverse electrical environments.
2. Коопсуздук маалыматы
WARNING: Installation of this device involves working with high voltage electricity. Improper installation can lead to serious injury, electric shock, or damage to equipment.
- It is strongly recommended that installation be performed by a qualified professional electrician.
- Always ensure the power supply is completely disconnected before attempting any installation, inspection, or maintenance work on the SPD.
- Verify that the ground line is properly connected as indicated in the wiring diagrams to ensure effective surge protection.
- Do not operate the device if it appears damaged or if the visual indicator shows a fault.
3. Продукт бүтүп калдыview
The EARU SPD is a compact, modular device designed for easy integration into electrical panels. Key features include:
3.1 Visual Warning Module
The SPD is equipped with a visual warning module that indicates its operational status:
- Жашыл көрсөткүч: Signifies normal working condition. The device is active and providing protection.
- Кызыл көрсөткүч: Indicates a working state failure. The internal protection component has been consumed by a surge event and needs replacement.
3.2 Компоненттери жана өлчөмдөрү
The SPD features clearly labeled input/output terminals, indicator windows, and a ground wire end. It is designed for 35mm DIN rail mounting.
4. Техникалык шарттар
4.1 AC Surge Protective Device (SPD)
| Параметр | EASP-40 (Type C) | EASP-60 (Type B) | EASP-20 (Type D) |
|---|---|---|---|
| Электр рейтингдери | 230/400V, AC50/60Hz, 3-phase | ||
| Макс. Үзгүлтүксүз операция Voltage (Uc) | ~385VAC | ||
| Nominal Discharge Current (In, 8/20μs) | 20KA | 30KA | 20KA |
| Max. Discharge Current (Imax, 8/20μs) | 40KA | 60KA | 10KA |
| Тtage Коргоо деңгээли (Жогору) | ≤1.8KV | ≤2.2KV | ≤1.8KV |
| Жооп убактысы | < 25ns | ||
| Ачуу ток | ≤20μA | ||
| Жумушчу чөйрөнүн температурасы | -40°Cден +80°Cге чейин | ||
| Салыштырмалуу нымдуулук | <95% | ||
| Deterioration Indication | Green (normal), Red (malfunction) | ||
| Коргоо режими | L-PE, N-PE (1P, 2P, 3P, 3P+N) | ||
| Сырткы кабык материалы | Flame retardant materials (UL94V0) | ||
| Сертификация | CE, IEC/EN 61643-1 | ||
4.2 DC Surge Protective Device (SPD)
| Параметр | Нарк |
|---|---|
| Номиналдуу томtage (БУУ) | 500V/800V/1000V DC |
| Max. Continuous D.C. Voltage (Uc pv) | 500V/800V/1000V DC |
| Коргоо режими | CM/DM |
| Maximum Discharge Current (Imax, 8/20μs) | 40kA/60KA |
| Nominal Discharge Current (In, 8/20μs) | 20kA/30KA |
| Тtage Protective Level CM/DM at In (Up) | ≤2.2кВ |
| Isolation Resistance (Risol) | >102МΩ |
| Response Time (tA) | ≤25 ns |
| I / O байланыштары | By screw terminal: 10-35mm², By connection bus |
| Монтаждоо | Symmetrical rail (EN50022/DIN46277-3) |
| Иштетүү Температура диапазону | -40°Cден +85°Cге чейин |
| Коргоо даражасы | IP20 |
| Турак жай материалы | UL94V0 |
| Ажыратуунун көрсөткүчү | Mechanical indicator |
| Алыстан башкаруу байланышы | Жок |
| Түс | Боз |
5. Орнотуу жана орнотуу
The EARU SPD is designed for easy installation on a 35mm DIN rail. Follow these general guidelines and refer to the specific wiring diagrams for your AC or DC system.
- Энергияны өчүрүү: Before starting any installation, ensure that the main power supply to the electrical system is completely turned off and locked out to prevent accidental re-energization.
- Монтаждоо: Snap the SPD unit(s) onto a standard 35mm DIN rail within your electrical panel.
- Wiring Connection:
- Connect the surge protector directly to the main incoming line, typically after the main air switch or leakage protection device.
- For AC systems, connect the Line (L) and Neutral (N) wires to the corresponding terminals on the SPD.
- For DC systems, connect the Positive (+) and Negative (-) input wires to the corresponding terminals on the SPD.
- Жерге туташтыруу: Crucially, connect the ground wire from the SPD to the main grounding busbar of your electrical system. The ground line should be derived from the incoming line.
- Ensure all connections are secure and tightened to the specified torque.
- Текшерүү: After wiring, double-check all connections for correctness and tightness. Ensure no bare wires are exposed.
- Power калыбына келтирүү: Restore power to the system. Observe the visual warning module on the SPD. It should display a жашыл көрсөткүч, signifying normal operation.
Important Note: The circuit is dangerous. Please ensure installation is performed by a professional electrician.
5.1 Электр байланыш схемалары
6. Иштөө нускамалары
The EARU SPD operates automatically to protect your electrical system. Once correctly installed and powered, it continuously monitors the voltage and diverts any detected surges to the ground, preventing them from reaching your sensitive equipment.
No manual intervention is required for its protective function during normal operation. The primary operational aspect for the user is to monitor the visual warning module.
- A жашыл көрсөткүч confirms the SPD is functioning correctly and providing protection.
- A кызыл көрсөткүч signals a fault, meaning the SPD has absorbed a significant surge and its protective element needs attention.
7. Техникалык тейлөө
To ensure continuous and effective protection, periodic maintenance of your EARU SPD is recommended:
- Визуалдык текшерүү: Regularly check the visual warning module on the SPD. If the indicator is кызыл, it signifies a working state failure.
- Модулду алмаштыруу: In case of a red indicator, the internal lightning protection module (cartridge) needs to be replaced. Ensure the power is off before attempting to replace the module.
- Бирдикти алмаштыруу: If the entire protector unit appears physically damaged or if replacing the module does not resolve the red indicator issue, the entire SPD unit should be replaced directly by a qualified electrician.
- Тазалык: Keep the SPD and its surroundings clean and free from dust and debris to ensure proper ventilation and operation.
8. Кыйынчылыктарды
This section addresses common issues you might encounter with your SPD.
8.1 Red Indicator on Visual Warning Module
Көйгөй: The visual warning module displays a red indicator.
Себеби: The SPD has successfully diverted a surge, and its internal protective component (varistor) has reached its end-of-life or is damaged.
Чечим: The lightning protection module (cartridge) needs to be replaced. If the module is not replaceable or the entire unit is damaged, replace the complete SPD unit. Always disconnect power before replacement.
8.2 No Apparent Protection / Equipment Damage Despite SPD Installation
Көйгөй: Electrical equipment is still experiencing damage from surges, or the SPD does not seem to be functioning.
Себеби: Incorrect installation, improper grounding, or the SPD is not adequately rated for the system's surge levels.
Чечим:
- Verify all wiring connections, especially the ground connection, according to the provided diagrams and safety guidelines.
- Ensure the SPD's voltage and current ratings (e.g., Uc, Imax, In) are appropriate for your specific electrical system and the expected surge environment.
- Consult a qualified electrician to inspect the installation and system compatibility.
9. Колдонуучунун кеңештери
- Solar Panel Systems (PV): For solar panel installations, ensure you select a DC SPD model with appropriate voltage ratings (e.g., DC 500V, 800V, 1000V) and surge capacities (e.g., 20-40KA or 30-60KA). These devices are suitable for protecting PV systems.
- Коргоо классы: For AC systems, the devices are available in different protection classes (Type B, C, D, or T1, T2, T3). For DC systems, the models typically correspond to Type 2 (T2) or combined T1+T2 applications, depending on the specific model and installation requirements. Consult relevant electrical standards for your region to choose the correct class.
- Кесиптик орнотуу: Given the critical role of SPDs and the dangers of electrical work, always prioritize professional installation to ensure optimal performance and safety.
10. Кепилдик жана колдоо
For technical support, service, or warranty claims, please contact your retailer or the manufacturer directly. Keep your purchase receipt and any installation records for warranty validation. The manufacturer's warranty covers defects in materials and workmanship under normal use conditions.
