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Location: >> Products >> Electrical products >> ProductsZN23 (39)-40.5 indoor HV AC vacuum circuit breaker
General
ZN23 (39)-40.5 indoor HV AC vacuum circuit breaker applies spring operating mechanism, the main circuit applies the air insulation mode, the circuit breaker can be handcart type and fixed type, which separately installed on withdrawout type and fixed type Switchgear.
Technical parameters
|
Item |
Unit |
Parameters |
|||
|
Rated voltage |
KV |
40.5 |
|||
|
Rated insulation |
1min power frequency withstand voltage |
KV |
95 |
||
|
Lightning impulse withstand voltage |
KV |
185 |
|||
|
Rated frequency |
HZ |
50/60 |
|||
|
Rated current |
A |
1250、1600、2000 |
|||
|
Rated short time withstand voltage (4S) |
KA |
20 |
25 |
31.5 |
|
|
Rated withstand current (peak) |
KA |
50 |
63 |
80 |
|
|
Rated short circuit drop-out current |
KA |
20 |
25 |
31.5 |
|
|
Rated short circuit making current |
KA |
50 |
63 |
80 |
|
|
Rated operation sequence |
|
O-0.3S-CO-180S-CO |
|||
|
Rated short circuit drop-out current and numbers |
numbers |
20 |
|||
|
Rated capacitor bank drop-out current |
A |
630 |
|||
|
Mechanical endurance |
numbers |
10000 |
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