The DY series surge protector (SPD) is suitable for IT, TT, TN-C-TN-S, TN-C-S and other power supply systems with AC 50/60Hz and rated voltage of 380V, to protect against indirect lightning and direct lightning effects or other transient overvoltage surges. According to GB/T18802.1-2011 standard.
Product installation
SPD is a one port, anti electric shock protection, indoor fixed installation, voltage limiting type.
SPD has a built-in disconnector. When SPD fails due to overheating or breakdown, the disconnector can automatically disconnect it from the power grid and provide an indication signal.
When SPD is working normally, the visual window displays green, and when it fails and disengages, it displays red.
SPD is a one port, anti electric shock protection, indoor fixed installation, voltage limiting type.
The SPD has a built-in disconnector. When the SPD fails due to overheating or breakdown, the disconnector can automatically disconnect it from the power grid and provide an indicator signal. When it works normally, the visual window displays green failure and red disconnection.
Main technical parameters
| Model specifications | DY-65 | DY-40 | DY-20 | ||||||
| Rated working voltage Uopv(V) | 220(1N 50Hz)380(3N 50Hz) | ||||||||
| Maximum continuous operating voltage UC(VAC) | 420 | 385 | 275 | 420 | 385 | 275 | 420 | 385 | 275 |
| Voltage protection level Up(kV)5 | 2.2 | 2.0 | 1.8 | 2.0 | 1.8 | 1.5 | 1.6 | 1.5 | 1.2 |
| Maximum discharge current (8/20us)Imax(kA) | 65 | 40 | 20 | ||||||
| Nominal discharge current (8/20us)In(kA) | 30 | 20 | 10 | ||||||
| Response time ns | < 25ns | ||||||||
| Protection level | IP20 | ||||||||
| Recommended front-end series fuse | 63A | 32A | 16A | ||||||
| Connecting wire cross-sectional area (mm²) | ≥6 | ||||||||
| Grounding wire cross-sectional area (mm²) | ≥10 | ||||||||
| Failure indication | Aging failure, green normal, red failure | ||||||||
| Remote signaling function | Optional | ||||||||
| remarks | Other maximum continuous operating voltages Uc can be customized (500V,690V) | ||||||||
Wiring diagram and external dimensions
