LYD-20 Surge Protective Device
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Features
LY1-20 series modular type power supply pressure limiting surge protectoris on the basis of IEC61643-11, GB18802.1 standard design and manufacture, canbe close to the protected equipment installation, the maximum discharge currentof 20 a mu s (8/20), this product is a standard 35 mm guide rail styleinstallation, have red, green, mechanical failure indicator, suitable forlow voltage circuit of secondary protection, depending on the powerdistribution system (TT TN IT) can choose a variety of combinations. Ty1-20zero-ground protection combination is also called 1+1/3+1 protection mode, NPE:ty1-20npe zero-ground protection module.
Red green failure indicator
Remote alarm interface is optional
The reaction speed is less than 25 nanoseconds
Maximum discharge current of single module 20kA(8/20 microns)
Built-in over heat/over current breaker
Product characteristics
| Specification | LY1-20 |
| Item name | Surge protection |
| SPD dassification according to EN61643-11 | Type 2 |
| power system | TT-TN-IT |
| Nominal voltage | 220/380V |
| Max. continuous operating a.c. voltage Uc | 275/320/385V |
| Norminal discharge current (8/20μs) In | 10kA |
| Max. discharge current（8/20us） Imax | 20kA |
| Voltage protection level UP | 1.3/1.5/1.8kV |
| Remote communication alarm | yes |
| Operating state/ fault indication | green/ red |
| Cross-section area | 4-35mm2 |
| For mounting on | 35mm Din rail |
| Degree of protection | IP20 |
| Operating temperature range Tu | -40~70℃ |
| Enclosure material | Thermal plastic UL94-V0 |
