K8AB-PW

5

Connections

■ Wiring Diagram

Overvoltage and Undervoltage Operation Diagram

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%.

T

T1

T

L1

L2

L3

Hysteresis: Fixed at 5%

Hysteresis: Fixed at 5%

T: Operating time (0.1 to 30 s)

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

Flashing

Lit

Flashing

Lit

Overvoltage alarm indicator

Undervoltage alarm indicator

Overvoltage relay

Undervoltage relay

Undervoltage setting value

Overvoltage

setting value

Input

T: Operating time (0.1 to 30 s)

Load

Voltage input

Signal output

14

12

L1

L2

L3

11

L1

NL2 L3

Signal output

24

22

21

Undervoltage

alarm

Overvoltage

alarm

N