|
|
|
| BY4-60/3P |
BY4-80/3P |
| Specification |
| Type |
Pole |
Uc (V) |
In(kA) |
Imax(kA) |
Up(kV) |
| BY4-60/3-320 |
3 |
320 |
30 |
60 |
2.0 |
| BY4-80/3-320 |
3 |
320 |
40 |
80 |
2.0 |
| BY4-100/3-320 |
3 |
320 |
60 |
100 |
2.5 |
| BY4-60/3N-320 |
3 |
320 |
30 |
60 |
2.0 |
| BY4-80/3N-320 |
3 |
320 |
40 |
80 |
2.0 |
| BY4-100/3N-320 |
3 |
320 |
60 |
100 |
2.5 |
| BY4-60/4-320 |
4 |
320 |
30 |
60 |
2.0 |
| BY4-80/4-320 |
4 |
320 |
40 |
80 |
2.0 |
| BY4-100/4-320 |
4 |
320 |
60 |
100 |
2.5 |
| BY4-60/3N-385 |
3 |
385 |
30 |
60 |
2.0 |
| BY4-60/3N-385 |
3 |
385 |
40 |
80 |
2.5 |
| BY4-60/3N-385 |
3 |
385 |
60 |
100 |
3.0 |
| BY4-60/4-385 |
4 |
385 |
30 |
60 |
2.0 |
| BY4-80/4-385 |
4 |
385 |
40 |
80 |
2.5 |
| BY4-100/4-385 |
4 |
385 |
60 |
100 |
3.0 | Notes: Some of these types are available with accessories: alarm and remote signalling contact ( those ending with B and X ). |
| Technical Parameters : |
|
BY4-60/3-385 BY4-60/3N-385 BY4-60/4-385 |
BY4-80/3-385 BY4-80/3N-385 BY4-80/4-385 |
BY4-100/3-385 BY4-100/3N-385 BY4-100/4-385 |
| Maximum continuous operating voltage Uc |
385 V |
| Test grade |
Class 2 |
| Nominal discharge current In(8/20 µ s) kA |
30 kA |
40 kA |
60 kA |
| Maximum discharge current Imax (8/20 µ s) kA |
60 kA |
80 kA |
100 kA |
| Voltage protective level Up |
2.0 kV |
2.5 kV |
3.0 kV |
| Response time ns |
< 25 ns |
| Defending grade |
IP20 |
| Ambient temperature |
-40---- +85 ℃ |
| Color ( Mould ) |
Orange |
| ( Base ) |
Grey |
| Outer covering material |
Reinforced fire-retardant nylon PBT |
| Phase Line , Zero Line |
6 ----3 5 mm ² |
| Earth Line |
6 ----3 5 mm ² |
| Signal Line |
1.5 mm ² |
| Accessory |
According to the needs adding the remote signaling contact |
|
BY4-60/3-320 BY4-60/3N-320 BY4-60/4-320 |
BY4-80/3-320 BY4-80/3N-320 BY4-80/4-320 |
BY4-100/3-320 BY4-100/3N-320 BY4-100/4-320 |
| Maximum continuous operating voltage Uc |
320 V |
| Test grade |
Class 2 |
| Nominal discharge current In(8/20 µ s) kA |
30 kA |
40 kA |
60 kA |
| Maximum discharge current Imax (8/20 µ s) kA |
60 kA |
80 kA |
100 kA |
| Voltage protective level Up |
2.0 kV |
2.0 kV |
2.5 kV |
| Response time ns |
< 25 ns |
| Defending grade |
IP20 |
| Ambient temperature |
-40---- +80 ℃ |
| Color ( Mould ) |
Orange |
| ( Base ) |
Grey |
| Outer covering material |
Reinforced fire-retardant nylon PBT |
| Phase Line , Zero Line |
6 ----3 5 mm ² |
| Earth Line |
6 ----3 5 mm ² |
| Signal Line |
1.5 mm ² |
| Accessory |
According to the needs adding the remote signaling contact | |
| Appearance and Installation Dimension |
 |
| Operating Principle |
| In three-phase four- line system , three phase lines and one zero line are connected protective device to the earth cable . (figure 9 ) . In normal situation , the protective device is high resistance , when the over voltage brings for electric network shocked by thunder or other reasons , the protective device will rapidly transmit in ns , then lead the voltage into earth and protect the electric equipment . As the surge voltage through the protective device and after disappear it will recover to high resistance and not influence the normal operating . Figure 10 is the electric principle about it. |
 |
| Installation Location and Application |
SPD class D, functioning as an equi-potential connection in case of lightning.
Installed at the joint of the LPZOA, LZPOB and LPZ1 zones.
It is usually installed in low voltage main distribution cabinet connected to the incoming end of the buildings.
It adopts 35 mm DIN rail.
It is linked by 6 --- 35 mm² copper wire.
The cable should choose double color wire which is longer than 6 mm ² .
In order to guarantee electrical network's normal operating after protective device losing efficiency , the protective device which linked to the phase line must be connected a fuse box whose current is higher than 63A or a circuit breaker. |
