The JCZ5 series high-voltage vacuum contactor is suitable for power, metallurgy, mining, petrochemicals, construction and other departments, as well as power distribution systems in factories and mining enterprises. It is used to control high-voltage motors, transformers and capacitive loads of 12kV, 7.2kV and below, and is particularly suitable for various frequent operation fields. Small in size and light in weight, adopting the internationally popular assembly structure with top and bottom arrangement, easy to use and maintain, and easy to form F-C circuit complete equipment.
JCZ5-12J (D)/630-6.3 High Voltage Vacuum Contactor Parameters:
| rated voltage |
12kV |
| rated current |
630A |
| Rated closing current (effective value) |
6300A |
| Rated maximum breaking current |
5040A |
| Rated operating voltage |
110/220V.AC |
| Lightning impulse withstand voltage |
75kV |
| Rated short-time withstand current |
6.3kA |
| Rated short-circuit duration |
4s |
| Rated peak withstand current |
16kA |
| Power frequency withstand voltage between contacts in the open state |
42kV |
| Closing coil attracts current |
≤DC10/5A |
| Keep the coil holding current |
DC0.6/0.3A |
| Opening coil tripping current |
DC2.5/1.3A |
| Rated operating frequency |
300 times/h |
| mechanical life |
30 × 104 times |
| electrical life |
AC-3 |
25 × 104 times |
| AC-4 |
10 × 104 times |
| contact gap |
6+1-0.5mm |
| overrun |
1.5±0.5mm |
| Average closing speed |
0.2±0.1m/s |
| Average opening speed |
0.6±0.1m/s |
| Synchronization of three-phase closing |
≤2.0ms |
| Contact bounce time |
≤5.0ms |
| Closing time |
≤150ms |
| Inherent opening time |
≤50ms |
| Resistance of each phase conductive circuit (20 ℃) |
≤250μΩ |
| Length of contact spring in closed state |
36±1mm |
| weight |
About 32kg |
| Rated working voltage |
Agreed heating current A |
Service life (times) |
Usage category |
Rated working current |
| mechanical |
electricity |
communication |
direct current |
| DC 220V |
six |
≥5×106 |
≥2×105 |
DC11 |
|
0.4 A |
| Communication 380V |
six |
AC11 |
4A |
| |
JCZ5-12J (D)/630-6.3 High Voltage Vacuum Contactor Outline Drawing:

| model |
W0 |
W1 |
W2 |
W3 |
W4 |
W5 |
H1 |
H2 |
H3 |
D0 |
D1 |
D2 |
Φ |
Φ |
|
installation dimensions |
|
|
|
apart |
|
|
|
|
installation dimensions |
|
|
installation aperture |
Busbar aperture |
| JCZ5- 12kV |
three hundred and ninety |
five hundred and ten |
thirty |
four hundred and fifty |
one hundred and seventy |
one hundred and forty-four |
four hundred and fifty |
one hundred and sixty-eight |
two hundred and twenty-five |
one hundred and sixty-one |
two hundred and forty |
4(5) |
nine |
thirteen |
JCZ5-12J (D)/630-6.3 High Voltage Vacuum Contactor