LV Surge Arresters upto 440 V
LV Surge Arrester upto 440V for substation protection from lightening and switching overvoltages. LV Surge Arresters provide protection for low-voltage overhead lines, consumer in-house supplies, distribution transformers and other systems. Numerous tests have confirmed durability of the housing, even when exposed to extreme temperature fluctuations and contamination
- Suitable for indoor and outdoor applications
- Integrated disconnector and 1m line lead
- Overhead lines housing and lead are flame retardant and UV resistant
- Easy to identify failure indicator
- Easy to install (no tools required)
- Tested according to IEC 61643-1+ Amd.1 and EN 61643-11
Technical Information
| Type | LVA-280B | LVA-440B | |
|---|---|---|---|
| Continuous operating voltage (Uc) | V | 280 | 440 |
| Applicable standard /class | IEC 61643-1 / Class II / Imax= 40 kA | ||
| Nominal discharge current | kA | 10 | |
| High current impulse 4/10µs | kA | 100
(test as per IEC 60099-4) |
|
| Rated frequency | Hz | 48 – 62 | |
| Ambient temperature | °C | -40 to +70 | |
| Energy absorption during line discharge impulses (2shots): | kJ/kV·Uc | 4.1 | |
| Maximum Discharge current | kA | 100 | |
