K8AB-PW データシートの表示（PDF） - OMRON Corporation

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K8AB-PW

Three-phase Voltage Relay

OMRON Corporation 

Connections

■ Wiring Diagram

Overvoltage and Undervoltage Operation Diagram

Overvoltage

setting value

L1

Input L2

L3

Undervoltage setting value

Overvoltage alarm indicator

Undervoltage alarm indicator

Flashing

Lit

Hysteresis: Fixed at 5%

Hysteresis: Fixed at 5%

Flashing

Lit

T

T: Operating time (0.1 to 30 s)

Overvoltage relay

Undervoltage relay

T T: Operating time (0.1 to 30 s)

T1: Power ON lock (1 s or 5 s)

T1

Note: 1. K8AB-PW output relay is normally operative.

2. The power ON lock function prevents unnecessary alarms from

being generated during the unstable period when the power is first

turned ON. There is no relay output during timer operation.

3. L1 and L2 use the same power supply and will not operate due to an

undervoltage if they drop below the rated input of 60%.

K8AB-PW

N L1 L2 L3

Voltage input

L1

L2

N

L3

14

Signal output

12

11

Overvoltage

alarm

24

Signal output

22

21

Undervoltage

alarm

Load

5

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