Power contactor VACKJ-3.3kV series

motormagneticvacuum

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.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, etchant 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°.