Low voltage surge arresters with disconnector - PROTECT series New
Application:
Protect series surge arresters are designed to protect devices in low-voltage power systems against direct and indirect overvoltages and switching overvoltages. They are used primarily on low-voltage overhead lines. It is recommended that one set of arresters be installed at a distance of no more than 500 m along the entire length of the line.
The arresters meet the requirements of the following standards: IEC-EN 61643-11 and LVD 2014/35/EU (dated 26.02.2014).
Construction and advantages:
- UV-resistant, non-flammable housing (V-0)
- Grounding disconnector with visual fault indicator
- Equipped with an M8 screw for connecting line terminals
- High degree of protection
- Wide selection of additional accessories
Protect limiter characteristics:
- Nominal mains voltage: 230/400 V
- Continuous operating voltage Uc: according to the table
- Line discharge class: II
- Type: T2, A
- Nominal discharge current In: 5 kA or 15 kA
- Maximum discharge current Imax: for In = 5 kA Imax = 40 kA, for In = 15 kA Imax = 50 kA
- Short circuit resistance: ≥4.5 kA
- Humidity: up to 95%
- Energy absorption capacity [kJ/1kV Uc]: according to the table
- Operating temperature range: -40°C to +85°C
- Mains frequency: 48 to 62 Hz
- Maximum installation altitude: 2000 m above sea level
- Pollution zone: III (according to PN-E 06303:1998)
Electrical data:
| Symbol | Continuous operating voltage UC [V] | Nominal discharge current In [kA] |
Max discharge current Imax [kA] |
Voltage protection level Up [V] | Energy absorption capacity Uc [kJ/1kV UC] |
|---|---|---|---|---|---|
| Protect 2-5-D | 280 | 5 | 40 | ≤ 900 | ≥ 3 |
| Protect 4-5-D | 440 | 5 | 40 | ≤ 1400 | ≥ 3 |
| Protect 5-5-D | 500 | 5 | 40 | ≤ 1700 | ≥ 3 |
| Protect 6-5-D | 660 | 5 | 40 | ≤ 2000 | ≥ 3 |
| Protect 2-15-D | 280 | 15 | 50 | ≤ 900 | ≥ 5 |
| Protect 4-15-D | 440 | 15 | 50 | ≤ 1400 | ≥ 5 |
| Protect 5-15-D | 500 | 15 | 50 | ≤ 1700 | ≥ 5 |
| Protect 6-15-D | 660 | 15 | 50 | ≤ 2000 | ≥ 5 |
Attachment:
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Electrical data:
| Symbol | Continuous operating voltage UC [V] | Nominal discharge current In [kA] |
Max discharge current Imax [kA] |
Voltage protection level Up [V] | Energy absorption capacity Uc [kJ/1kV UC] |
|---|---|---|---|---|---|
| Protect 2-5-D | 280 | 5 | 40 | ≤ 900 | ≥ 3 |
| Protect 4-5-D | 440 | 5 | 40 | ≤ 1400 | ≥ 3 |
| Protect 5-5-D | 500 | 5 | 40 | ≤ 1700 | ≥ 3 |
| Protect 6-5-D | 660 | 5 | 40 | ≤ 2000 | ≥ 3 |
| Protect 2-15-D | 280 | 15 | 50 | ≤ 900 | ≥ 5 |
| Protect 4-15-D | 440 | 15 | 50 | ≤ 1400 | ≥ 5 |
| Protect 5-15-D | 500 | 15 | 50 | ≤ 1700 | ≥ 5 |
| Protect 6-15-D | 660 | 15 | 50 | ≤ 2000 | ≥ 5 |
Attachment: