Description
This series vacuum contactor is suitable for power network of AC 50Hz,the main circuit rated voltage 1140V,rated current is 1000A-1250A,
for making,breaking,frequently starting and controlling AC motor,and suitable for forming magnetic starter with a variety of protectors
(JDB electronic integrated protection,JR9 type over current protection devices,the RC absorption device),especially suitable for components
widely used anti-explosion magnetic starter and large mineral lapping switch equipment.
The contactor complies with GB/T 14048.4,IEC 60947-4-1 and JB/T 7122 standard,the main performance indicators have reached the international level.
2. Normal using conditions
a. Environment temperature : -5ºC~+40ºC, and average value is no more than +35ºC within 24 hour.
b. Altitude: no more than 1000m.
c. Atmospheric conditions: monthly highest humidity in the most wet month is no more than 90% and monthly average minimum temperature
shall be 25ºC. Condensation on the products due to temperature changes shall be considered.
d. Impact vibration: The place is without extensive shaking, impact, and vibration.
e. The place is without explosion hazard, enchant gas and sleet.
f. No rain and snow in places
g. Pollution degree: Three grade
h. Installation type: .III
i. Installation condition: Slant angle between installation surface and vertical surface is no more than 15°.
3.Main technical parameter
| Item | Unit | CKJ-5-1000~1250/1.14 | |
| Main circuit rated voltage | kV | 1.14 | |
| Main circuit rated current | A | 1000 | 1250 |
| Main circuit making capacity | A/100times | 6000 | |
| Main circuit breaking capacity | A/100times | 4500 | |
| Limit breaking capacity | A/3times | 5000 | |
| Electrical life AC3 | times | 600,000 | |
| Electrical life AC4 | times | 60,000 | |
| Mechanical life time | times | 1,000,000 | |
| Rated operating frequency AC3 | times/h | 600 | |
| Rated operating frequency AC4 | times/h | 120 | |
| Short-time operating frequency(20s) | times/h | 1000 | |
| Clearance between open contacts | mm | 2.8±0.1 | |
| Over travel | mm | 1.0±0.1 | |
4. Packaging
For Vacuum Circuit Breaker, pls click: https://china-vacem.en.made-in-china.com/product-group/roqEnxmCTUYh/Vacuum-Circuit-Breaker-catalog-1.html
5.International fairs
6. Company show
