1)Product Description:
This SPD is applied to provide fine overvoltage protection of electronic equipment whose power is supplied by direct-current power supply.It is D-level overvoltage protection device, is design according to IEC and GB standard,is available in a variety of different power supply voltage and selector corresponding specifications.
The product apply to lightning protection zone: LPZ2 area at the junction with the LPZ3 (D class) power lines of the lightning surge protection.
Apply to high temperature resistant plastic with excellent tightness , and easy to install wiring.
Adopt temperature control circuit technology which has built-in overcurrent breakers and thermal fuse circuit breakers, automatically trip because of deterioration.
With modular deterioration instructions and flame-retardant shell.
With dustproof, anticorrosion and other functions.
It is used in a relatively harsh environment staying a long-term stability
It is widely used in the lightning protection of telecommunications room DC bus, the DC busbar microwave communications room, closing the substation bus, control bus.
2)Technology parameters:
| TYPE: | KHYS12-20KA/2 | KHYS24-20KA/2 | KHYS48-20KA/2 | KHYS75-20KA/2 | KHYS110-20KA/2 |
| Protection Class: | D | D | D | D | D |
| Operating Voltage (Un): | 110V | DC75V | DC48V | DC24V | DC12V |
| Nominal Discharge Current (8/20μ s) (In): | 10KA (8/20µs) | 10KA (8/20µs) | 10KA (8/20µs) | 10KA (8/20µs) | 10KA (8/20µs) |
| Max. Discharge Current (8/20μ s) (Imax ): | 20KA (8/20µs) | 20KA (8/20µs) | 20KA (8/20µs) | 20KA (8/20µs) | 20KA (8/20µs) |
| Voltage Protection Level( Up): | ≤80V | ≤120V | ≤200V | ≤250V | ≤350V |
| Max. Continuous Operating Voltage (Uc): | 20V | 30V | 65V DC | 85V DC | 130V |
| Response Time: | <20ns | <20ns | <20ns | <20ns | <20ns |
| Leakage current(μA): | ≤30µA | ≤30µA | ≤30µA | ≤30µA | ≤30µA |
| Protection Mode: | L-PE/N-PE | ||||
| Working Environment: | Temperature -40°C +80°C;Relative humidity<95%; | ||||
| Material of Outer Shell: | Flame retardant materials | ||||
| Dimension(mm): | 90×36×62mm | ||||
| Weight(kg): | 0.245 | ||||
| Order coding: | DZE001 | DZE002 | DZE003 | DZE004 | DZE005 |
3)Product installation:
1. The lightning arrestor is connected with the power lines in series, then with the ground network.
2.When installation,inlet and outlet terminal of lightning protection devices will be connected with"+","-"pole of the corresponding DC power ; "PE" symbol is connected with grounding line; the way of wiring is the screw tight solid type;
3.All wirings must be solid and connect by electric.SPD cable: BVR≥6mm2, grounding line: BVR≥10mm2.
4.Lightningproof grounding should be consistent with lightning protection regulatory requirements, grounding wire should be as thick and short as possible,resistance should be less than 10Ω.
