JCZ7(G)12kV 400A Vacuum Contactor
JCZ7-12 series AC Vacuum Contactor 3 polesis suitable for the AC electric system, of which the frequency is 50~60 Hz, rated working voltage of 12 kV (or 7.2 kV), for direct or remote on-off control of the main circuits.
This series of vacuum contactors main used below the rated current from 160A-630A power network systems for remote making and breaking and frequent starting and control of AC motors, transformers and capacitor banks and other occasions.
| Name | Unit | Value | ||
| Main circuit | Rated working voltage (Ue) | kV | 12 | |
| Rated working current (Ie) | A | 400,630 | ||
| Rated frequency (fr) | Hz | 50 | ||
| Rated making capacity | A | 10Ie (AC-4) | ||
| Rated breaking capacity | A | 8Ie (AC-4) | ||
| Rated short time withstand current | A | 10Ie | ||
| Rated peak withstand current | A | 25Ie | ||
| Rated short circuit duration | s | 4 | ||
| Power frequency withstand voltage | Wiring terminal to earth | kV | 42 | |
| Vacuum breaks | kV | 42 | ||
| Lightening impulse withstand voltage | kV | 75 | ||
| Control circuit | Rated voltage (Us) | V | AC or DC. 110/220 | |
| Rated power (Ps) electric holding | VA | ≤1000/100(absorbing/holding) | ||
| Auxiliary circuit | Form | 
 | 3a+2b | |
| Rated value | 
 | AC 380V/5A, DC 380V/1A | ||
| Control circuit, auxiliary circuit to earth power frequency withstand voltage | kV | 2 | ||
| Rated operating frequency | Long-term | time/h | 300 | |
| Short-term | time/h | 600 | ||
| Mechanical endurance | 10000 times | 30 | ||
| Electrical endurance | 10000 times | 10 | ||
| Mechanical characteristics | Closing time | ms | ≤200 | |
| Original opening time | ms | ≤160 | ||
| 3-phase synchronism | ms | ≤3 | ||
| Closing tripping | ms | ≤15 | ||
| Net weight | kg | 49.5 | ||
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E-mail: sales@vcbbreaker.com
Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China
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