General
In parallel module type surge protective device has large lightning current discharge capacity, large circulation, each line max. discharge current could reach lmax= 160KAI8/20 s), suits for 220V/380V power supply distribution lightning protection. This spd is module design, nice sealing performance, matched remote signal interface and faulty indicator the fault, must be replaced and legible; optional remote communication interface, the realization of remote window, installed in 35mm DIN rail, easy to wire. There has temperature control technology, over current fuse and thermal circuit breaker, automatic trip when degraded.
Overall And Mounting Dimensions(mm)
Technical Parameters
| Technical Parameters | NDU3-15 | NDU3-25 |
| Protection class | B/C/D |
| Rated Operating Voltage Uc( V~) | 220V/380V |
| Maximum Continuous Operating Voltage Uc(V~) | 385V/420V |
| Protection Level Up(v-)kV | 2.5KV |
| Nominal Discharge Current In ( 10/350us)KA | 15KA | 25KA |
| Mmximum Discharge Current IMAX (10/350 us)kA | 10 | 20 | 40 | 60 | 80 | 100 | 120 | 160 | 200 |
| Response Time ns | <25 |
| Operation Environment | -40℃ ~+85℃ |
| ralative llumidity(25℃) | ≤95% |
| the line section of communication and alarm | ≤1.5 |
| Installation | Standard Rail 35mm |
| material of outer covering | Fiber glass reinforced plastic |
Yueqing Lovadon Electric Co., Ltd.
