Category
3kV LV Vacuum Contactor/Switch for Mining, VACKJ-350A/3.3kV;VACKJ-200A/3.3kV
1. General description
VACKJ-350A/3.3kV mining used AC L.V. vacuum contactor is used in electrical network with AC 50Hz, rated main loop voltage 3.3kV, rated current 350A to connect and break the circuit and frequently start and control AC electromotor. It can also be combined with different kinds of protecting equipment as magnetic starter, especially suitable for explosion-proof magnetic starter.
The contactor is up to the GB-T14808, IEC 60470 and GB/T 11022 standard. The main performance indicators are up to the international standards.
2. Main technical parameter
Product type | Rated voltage(V) | Rated current (main circuit)A | Main contact parameters | Power frequency withstand voltage V(effective value) | |||||
Main circuit | Control circuit | Open distance (mm) | Overtravel (mm) | Final pressure (N) | Main circuit | Auxiliary circuit | Control circuit | ||
VACKJ-350A/3.3 | 3300 | 110,220 | 350 | 3.5±0.3 | 1.5±0.3 | 100±20 | 23000 | 2500 | 2000 |
VACKJ-200A/3.3 | 3300 | 110,220 | 200 | 3.5±0.3 | 1.5±0.3 | 100±20 | 23000 | 2500 | 2000 |
Use classes | Making capacity | Breaking capacity | Limit breaking current(A) | Overload capacity | Mechanical life times | Weight(kg) |
AC-4 | 10le, 100times | 8le, 25times | 4500, 3times | 8le, 10s | 300×104 | 21 |
Ie means main circuit rated current
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