
The ND15 series surge protector is used for protection against surge caused by direct or indirect lightning or other transient voltages in the power supply systems, like IT, TT, TN-C, TN-S, and TN-CS, with the frequency of AC 50 or 60 Hz and the rated voltage of 380V.
This surge protection device is in line with GB18802.1 or IEC61643-1. According to the IEC 61643-1: 1998-02, it belongs to a Class B surge protector, suitable for use in high lightning-risk areas.
Model Specification | ND15-D/15 | ND15-C/40 | ND15-B/65 |
Grid operation voltage Un (V) | 380 | 380 | 380 |
Maximum continuous operating voltage Uc (V) | 420 | 420 | 420 |
Voltage protection level Up (kV)< | ≤1.8 | ≤1.8 | ≤1.8 |
Maximum discharge current | 15 | 40 | 65 |
Nominal discharge current | 8 | 20 | 35 |
Response time ns | <25 | ||
Protection class | IP20 | ||
Installation | 35mm Track | ||
Case material | Flame-retardant PC | ||
Remote telesignalling contact type | Normally open contact | ||
Terminal performance | AC220V 1A DC30V 1A COS Φ=1 | ||
Cross-section of terminal conductor for remote signaling | 1.5mm2 single strand/double strand |