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Help CenterZW20-12 Outdoor Pole-mounted VCB
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ZW20-12 series outdoor pole-mounted vacuum circuit breaker has a good sealing performance, with box-type sealing structure, filled with SF6 insides, independent of environmental influences, free of maintenance.
Features:
l Best choice for urban and rural grid construction
Used with controller to realize the functions of remote control, metering, signaling and adjustment
l Flexible operation
Motor and manual stored energy, open and close electrically and manually
l Excellent breaking capacity
Short circuit breaking current 25kA 30 times
l Free of maintenance
l Good sealing performance
l Secure for operation
It is equipped with a explosion-proof device. There won’t any high temperature gas or splash even under the condition of internal fault.
Service conditions:
Altitude: ≤3000m
Ambient temperature: -40℃~+40℃
Wind speed ≤35m/s
It shall not be exposed to flammable gas, fire, explosions and corrosive environment or long-term vibrations.
Technical Data
No. |
Description |
Unit |
Data |
1 |
Rated voltage |
KV |
12 |
2 |
Rated current |
A |
630, 1000 |
3 |
Rated frequency |
Hz |
50 |
4 |
Power frequency withstand voltage (1min) Phase to phase/earth, between open contacts |
KV |
42/48 |
5 |
Lightning impulse withstand voltage (peak) |
KV |
75/85 |
6 |
Rated short circuit breaking current |
KA |
12.5, 16, 20, 25 |
7 |
Rated short circuit making current (peak) |
KA |
31.5, 40, 50, 63 |
8 |
Rated peak withstand current |
KA |
31.5, 40, 50, 63 |
9 |
Rated short-time withstand current (4s) |
|
12.5, 16, 20, 25 |
10 |
Rated short circuit current breaking capacity |
times |
30 |
11 |
Power frequency withstand voltage on secondary circuit (1 min) |
KV |
2 |
12 |
Mechanical endurance |
times |
10000 |
13 |
Net weight |
kg |
140 |
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