The switching capacitor contactor of CJ19B(16B)(acronymed contactor below) is a special contator for on-off low voltage shunt capacitors. It is widely applied in reactive power compensating equipment auto-compensated; Suitable for a power system of AC 50Hz, rated votalge upto 380V for making and breaking the capaictor upto 320Kvar to improve power factor.

Normal working conditions and installing conditions:
A. Surrounding air temperature: It works within -5º C~ +40º C and the average degree is no more than +35º C in 24 hours.
B. Altitude: No more than 2000m.
C. Humidity: The air relative humidity of the contactor installing place is no more than 50% at +40º C, the average lowest temperature in the wettest month is no more than +25º C, and the maximal relative humidity this month can not beyond 90%.
D. Pollution grade: Class 3.
E. Install category: Category 3.
F. Impact and vibration: The contactor should not be installed in apparentjolty, impactive and shakable place.
G. Installing condition: The abliquity of the surface between install and perpendicularity of the contactor should be less than 5° .