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Connections
■ Wiring Diagram
Overcurrent Operation Diagram
(Output: Normally Open)
Power supply
voltage
Operating value
Input
Alarm indicator
Relay
Lock: Startup lock time (0 to 30 s)
LOCK
Undercurrent Operation Diagram
(Output: Normally Closed)
Power supply
voltage
Input
Operating value
Flashing
Alarm indicator
Relay
T
Cat. No. N142-E1-02
Hysteresis
(−5% to 50% of operating value)
Flashing
Lit
T: Operating time (0.1 to 30 s)
T
Hysteresis
(5% to 50% of operating value)
Lit
T: Operating time (0.1 to 30 s)
Single-phase power
A1
Power supply
voltage
A2
I1
Current
I2
input
I3
COM
14
Signal
Relay
output
signal
12
output
Load
Note: The K8AB-AS3 is designed to be used in combination with the
OMRON K8AC-CT200L Current Transformer (CT).
The 24-VDC power supply type is a non-insulated power
supply.
The inputs and power supply are connected internally, so a
malfunction may occur due to an unwanted current path if the
inputs and power supply are connected to the same line.
Single-phase Current Relay
Single-phase power
A1
Power supply
voltage
A2
I1
Current
I2
or
input
I3
COM
14
11
Signal
Relay
output
signal
12
output
Load
K8AB-AS
11
5
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