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Connections
Wiring Diagram
Phase Sequence and Phase Loss Operation Diagram
Phase Loss Operation
L1
Input
L2
L3
Relay
Note: 1. Motor load phase loss cannot be detected. To detect motor
load phase loss, use the K8AB-PM or K8AB-PA.
2. The K8AB-PH output relay is normally operative.
Nomenclature
Front
Power indicator
Relay status indicator
Dimensions
K8AB-PH
J-32
Phase-sequence Phase-loss Relay
Phase Sequence Operation
L1
L3
L1
L3
L2
L2
L2
L1
L3
22.5
K8AB-PH
L1
L2
L3
Load
Indicators
Item
Power indicator (PWR:
Green)
Relay status indicator (RY:
Yellow)
5
100
90
5
The power
supply is
shared with
the rated in-
put voltage.
Input
L1
L2
L3
14
11
Output
Alarm
12
Meaning
Lit when power is being supplied.
Lit when relay is operating (normally lit).
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