CKJ20 series of high current vacuum contactors
This series of vacuum contactors main used for AC 50-60hz, main circuit rated voltage 1.6kv below the rated current from 630a-1250a power network systems for remote making and breaking and frequent starting and control of AC motors, transformers and capacitor banks and other occasions.Advantages: good interchangeability, reliable performance, maintenance-free, long life, at the same time, this series vacuum contactor is the ideal replacement product for the old kinds of contactor.
| CKJ20 Series630A-1250A Large current AC vacuum contactor | |||||
| 630/1.6KV | 800/1.6KV | 1000/1.6KV | 1250/1.6KV | |
| Main circuit rated voltage (KV) | 1.6 | 1.6 | 1.6 | 1.6 | |
| Main circuit rated current (A) | 630 | 800 | 1000 | 1250 | |
| Main circuit making capacity (A/100times) | 6300 | 6300 | 8000 | 8000 | |
| Main circuit break-make ability (A/25times) | 5000 | 5000 | 6000 | 6000 | |
| Maximum break ability (A/3times) | 6300 | 6300 | 8000 | 8000 | |
| Electricity life AC3(times) | 60 0000 | 60 0000 | 60 0000 | 60 0000 | |
| Electricity life AC4 (times) | 10 0000 | 10 0000 | 10 0000 | 10 0000 | |
| Mechanical life (times) | 100 0000 | 100 0000 | 100 0000 | 100 0000 | |
| Rated operate frequency AC3 (times/h) | 300 | 300 | 300 | 300 | |
| Rated operate frequency AC4 (times/h) | 120 | 120 | 120 | 120 | |
| Clearance betweenopen contacts (mm) | 3±0.2 | 3±0.2 | 3±0.2 | 3±0.2 | |
| Over travel (mm) | 1.2±0.2 | 1.2±0.2 | 1.2±0.2 | 1.2±0.2 | |
| Secondary control voltage (v) | ACorDC:36 v 110v 127v 380vor can be customized | ||||
