I 1
2
1
I 2
S
S
S
S
U
U
Installation procedure: Embed the controller into the hole on the panel first, then push the mounting
parts into the upper and lower slots on the controller case. Tighten the screws to fix the controller onto
the panel. After installing the upper and lower mounting parts, please make sure the controller is secured,
otherwise it may fall out or be damaged due to vibration during transportation.
3.2.2 Product wiring
Figure 3 Product wiring
① Terminals “US1” and “US2” are connected to sampling voltage. They must be connected to
380VAC or 220VAC based on rated operating voltage.
② Terminals “IS1” and “IS2” are connected to sampling current which comes from total load
current tranformer and set apart from “US1” and “US2”. (Phase A for current, phase B and C
for voltage; phase B for current, phase A and C for voltage; phase C for current, phase A and B for
voltage)
③ Terminal “COM” is the relay common terminal for the output of group 1~12 of the controller.
Terminals “1~12” are used for output control of the contactors of the compensation circuits of
the capacitor display.
④ If the system voltage is 3-phase 380V and the coil voltage of contactor J is 220V, P is connected
to phase N. If the coil voltage of contactor J is 380V时, P is connected to phase C (different from
relay common terminal COM).
⑤ If the system voltage is 3-phase 220V, please select 220V for the coil voltage of contactor J, and P
10
9
8
7
6
5
4
3
2
1
COM
12
11
J 1
JKF8
H
L
5A
1A
1A
J12
F
U
1
F F
U
U
2
3
A
B
C
N
A
B
C
N
P
P
Power transformer
Rear View
To load control panel
Total current transformer
Low voltage side
High voltage side
JKF8 SeriesSmart Low-Voltage Reactive Power Compensation Controller
04
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