JCZ5-12kV 160A 250A 400A 630A AC Three Pole High Voltage Vacuum Contactor
The JCZ5-7.2kV and JCZ5-12kV series indoor AC high voltage vacuum contactors are available in two designs: mechanical holding and electromagnetic holding. These contactors are designed for three-phase AC 50Hz power systems, with rated voltage of 7.2kV or 12kV and rated current up to 630A.
They are widely used for long-distance making and breaking of circuits, as well as for controlling high voltage motors, transformers, capacitor banks, and other electrical loads. The JCZ5 series is particularly suitable for frequent operation, offering reliable performance, compact design, and lightweight construction.
The modular structure adopts an internationally popular up-and-down assembly layout, making it convenient for installation, operation, and maintenance. With its high reliability, long service life, and excellent switching capability, the JCZ5 series is an ideal solution for modern medium and high voltage power distribution systems.
Item | Data |
Rated voltage (Un) | kV |
Rated current | 630 / 6300 / 5040 / 6300 / 6300 |
Rated closed current (r.m.s.) | 630, 400, 250 |
Max breaking current | 4000, 3200, 4000, 4000, 4000, 300 |
4s thermal stability of current | 250000 |
Power frequency withstand voltage | 300000 |
Lightning impulse withstand voltage | 250000 |
Operating frequency | AC 110 / 220 |
Coil absorption current | ≤ DC 63 |
Keep coil current | DC 0.32 / 0.16 |
Shunt trip coil current | DC 25 / 13 |
Contact form | — |
Contact distance | 5.5 – 7 mm |
Overtravel | 15 ± 0.5 mm |
Closing synchronicity | ≤ 0.25 ms |
Average closing speed | 0.3 – 0.6 m/s |
Average breaking speed | — |
Three-phase break synchronicity | ≤ 0.5 ms |
Closing time / breaking time | — |
Resistance (20°C) | — |
Mechanical life (MC-3) | 250,000 |
Electrical life (MC-4) | 200,000 |
Phone: +8613736779975
E-mail: sales@vcbbreaker.com
Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China
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