Category
2kV LV Vacuum Contactor/Switch for Mining, VACJ20-250,400A/2kV-(Y)
1. General description
This AC low voltage vacuum contactor is used in electrical network AC 50Hz or 60Hz, rated main loop voltage 2kV, rated current 800A to connect and break the circuit and start and control AC machinal electromotor. Combining with sort of protecting equipment, it can also work as magnetic starter or explosion-proof magnetic starter. Its shape and installation dimension are the same as VACJ20-630/2 contactor. They can be changed, which offers good options for upgrading and maintenance.
“Y” means this vacuum contactor has coil operation mechanism type and permanent magnet operation mechanism type. Coil operation mechanism type is normally used. Customers can choose the suitable type according to the application.
2. Main technical parameter
Item | Unit | Data | |
Main circuit rated voltage | kV | 2 | |
Main circuit rated current | A | 250 | 400 |
Main circuit making capacity | A | 2500 | 4000 |
Main circuit breaking capacity | A | 2000 | 3200 |
Limit breaking capacity | A | 3200 | 4000 |
Electrical life AC3 | times | 600,000 | |
Electrical life AC4 | times | 60,000 | |
Mechanical life times | times | 1,000,000 | |
Rated operating frequency AC3 | times/h | 600 | |
Rated operating frequency AC4 | times/h | 120 | |
Short-time operating frequency | times/h | 2000 | |
Clearance between open contacts | mm | 3±0.5 | |
Over travel | mm | ≥1 | |
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