Application
WDC19B(CJ19) series switch-over capacitor contactor is suitable for the power circuit of AC50/60Hz, rated power voltage up to 660V and below, for the use of low voltage reactive power compensation equipment added-in or remove the low voltage shunt capacitor. This contactor is equipped with a surge suppression device, and it can effectively restrain the impact of closing inrush current on capacitor and reduce the breaking instantaneous overload voltage without adding the current limiting reactor. It conforms to the standard IEC/EN60947-4-1
Model No.
Normal operating condition and installation condition
1. Ambient temperature:+5℃~+40℃, average temperature within 24h does not exceed+35℃
2. Altitude: does not exceed 2000m
3. Atmospheric condition: when the highest temperature is +40℃, the relatively humidity does not exceed 50%; it can allow relatively high humidity when it is at relatively low temperature, for instance, it reaches 90% when it is at +20℃, it should take measurement when there have condensation occurred due to the temperature variation.
4. Pollution grade:33.5Installation category: Ill
6. Installation position: the gradient of the mounting surface to the vertical surface does not exceed±5°
7. lmpact and vibration: product should be installed and used at the places without obvious shake, impact and vibration.
Wiring principle
Fig 1 L1-L3 to be connected with the power end,T1-T3 to be connected with the load end.
Main technical parameter
Note:the terminal should be tightened every 1～3 months.
Dimensions
Auxiliary contacts
Code for the auxiliary contacts to see table 3
The coil of RDC19B can be reliably pull-in when it is at 80%-110% of control power voltage(Us),and can be reliably released when it is at 20%-70% of control power voltage(Us)
