1.Introduction

HVJ6-12 series indoor high-voltage AC vacuum contactor has two types: One is Mechanical holding type, the other is Electromagnetic holding type. It is applicable for three-phase AC 50HZ power system of rated voltage 12KV and below and rated current up to 630 A to open and close circuit remotely and control electrical equipment like high-voltage motor, transformer and capacitive load. It is especially suitable for fields operated frequently. The contactor uses the international fashionable up and down structure arrangement and has the advantages of small, light, easy to maintain and form a complete set of circuit equipment.

2. Service condition

a) Ambient air temperature: -25℃- +40℃.

b) Altitude not exceed 2000m

c)Humidity:

-Relative humidity: daily mean not higher than 95℃,monthly mean not higher than 90℃;

-Aqueous vapor pressure: daily mean not exceed 2.2 KP, monthly mean not exceed 1.8 KP

Ambient air should not be obviously polluted by corrosive or flammable gas or vapor;

C)Free of frequent severe vibration; When running, angle of inclination between installation surface and horizontal plane should not exceed 5℃.