Category
1.14kV LV Vacuum Contactor/Switch for Mining and Petrol Field, EXJ5-1000,1250A/1.14kV
1. General description
EXELEK high performance 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 vacem vacuum 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. Main technical parameter
Item | Unit | CKJ5-1000~1250/1.14 | |
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/10times | 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 | |
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