VLD class 2.2 (BVL)
BVL-50-120-R02
Order number: A06712
voltage limiting device, VLD of class 2.2, type VLD-O+F, limiting of occurrence non-permissible touch voltages, equalizing of the earth potential and limiting of overvoltage of a railway system AC and DC, surge protective device SPD of type 1+2
- limits non-permissible high touch voltages on non-live metal parts of a railway equipment in AC and DC railway system
- establishes temporary connection between the return circuit and the earth of the railway electric traction system, during the permissible value of voltage is exceeded
- equalizes the earth potential between the return circuit and the earth surrounding an electric and an electronics equipment and prevents their damage
- limits touch voltage and protects persons that might enter into contact with the parts affected
- eliminates high impulse overvoltages induced into the railway electric traction system or the railway equipment by a lightning strike
Technical parameters
| Parameter name | Parameter value | |
|---|---|---|
| Class VLD according to EN 50526-2 | 2.2 | |
| Type VLD according to EN 50122-1 | VLD-O+F | |
| Rated AC (rms) current (@ 60 min) | Ir | 50 A |
| Rated DC current (@ 60min) | Ir | 50 A |
| Leakage current at Uw | IL | < 120 μA |
| Non-triggering voltage | Uw | 100.00 V |
| Maximal short time DC withstand current (@ 30 ms) | Iw | 16.0 kA |
| Maximal short time DC withstand current (@ 100 ms) | Iw | 9.0 kA |
| Short time AC (rms) withstand current (@ 36 ms) | Iw | 15.0 kA |
| High charge impulse (10/350) | Iimp-hc | 35.00 kA |
| Lightning current impulse (8/20) | Iimp-n | 50.00 kA |
| High current impulse (8/20) | Iimp-high | 75.00 kA |
| Nominal triggering voltage | UTn | 120.00 V |
| Maximal residual voltage at Iimp-n | URES | 700.00 V |
| Maximal residual voltage at Ir | URES | 1.20 V |
| Maximal residual voltage at Iw | URES | 5.00 V |
| Instantaneous triggering voltage | UTi | 120.00 V |
| Response time @ lightning current | 25 ns | |
| Response time of thyristors | TR | < 1,5 ms |
| Degree of protection | IP 67 | |
| Range of ambient temperatures (min/max) | -40 / 70 °C | |
| According to standard | EN 50122-1, EN 50526-2 | |
| Weight | 2.10 kg | |
| ETIM Class | EC003621 | |
| Customs tariff number | 85301000 | |
| EAN | 8595090567127 |
Files for download
-
Product dimensions
-
Basic circuit diagram
