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10kA 3P+N Surge protective device (SPD)
LYD6 series surge protective device is suitable used in the TT, TN-S, TN-C, IT, TN-C-S and power supply system of AC50/60Hz, rated voltage 380V and below, to protect from direct and indirect lightning impulse and other transient over voltage, SPD meets with IEC61643-1 standards.
Installation:
- LYD6-20 is mounted between LPZ1 or LPZ2 zone and LPZ3 zone, the cross sectional area of multi-standard soft copper conductor to be connected with 2.5 to 35mm2. It is used in distribution boxes of living house, computer center, communication equipment, electronic equipment and control equipment or nearest socket box.
- LYD6-40 is mounted between LPZ0B or LPZ1 zone and LPZ2 zone. The cross sectional area of multi-standard soft copper conductor to be connected with 2.5 to 35mm2.
The contacts:
Contact for remote communication can be provided for SPD, the contact has one pair for transferring, 11 as middle position, 12 and 11 opened under SPD acting, 11 and 14 as NO. contact. If one or more of modules of SPD is invalid, the contact will be closed and send fault signal.
Technical parameter
Model and specification |
LYD6-60 |
LYD6-40 |
LYD6-20 |
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Maxi continuous operating voltage Uc(VAC) |
420 |
385 |
320 |
275 |
420 |
385 |
320 |
275 |
420 |
385 |
320 |
275 |
Voltage protective level(kV)≤ |
2.5 |
2.0 |
1.8 |
1.6 |
2.0 |
1.8 |
1.6 |
1.3 |
1.8 |
1.5 |
1.3 |
1.2 |
Maxi discharge current Imax(kA) (8/20µs) |
60 |
40 |
20 |
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Normal discharge current Imax(kA) (8/20µs) |
30 |
20 |
10 |
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Response time (ns) |
<25 |
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Protection grade |
IP20 |
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Indication of invalidation |
Aging invalidation: white is normal and red is invalidation |
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Application |
Primary protection for in line |
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Remote signal function |
Remote signal function can select. |
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Remarks |
Maxi continuous operating voltage Uc 175V, 440V, 690Vcan be customized. |
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Outside size:
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