K8AB-AS

5

Connections

■ Wiring Diagram

Overcurrent Operation Diagram

(Output Relay Drive Method: Normally

Open)

DIP switch setting: SW3 OFF.

Undercurrent Operation Diagram

(Output Relay Drive Method: Normally

Closed)

DIP switch setting: SW3 ON.

Note: 1. The K8AB-AS3 is designed to be used in combination with

the OMRON K8AC-CT200L Current Transformer (CT).

2. There is no polarity when a DC current input is used.

3. Refer to the “Setting Ranges and Wiring Connections” as

the explanation of current input l1, l2, and l3 terminal.

Power supply

voltage

Operating value

Input

Alarm indicator

Relay 11-14

Relay 11-12

Hysteresis

(

−5% to 50% of operating value)

Lit

Flashing

T: Operating time (0.1 to 30 s)

Lock: Startup lock time (0 to 30 s)

LOCK

T

Power supply

voltage

Operating value

Input

Relay 11-14

Relay 11-12

Alarm indicator

Lit

Flashing

Hysteresis

(5% to 50% of operating value)

T

T: Operating time (0.1 to 30 s)

Single-phase power

A1

Power supply

voltage

A2

Current

input

I1

I2

I3

COM

14

Signal

output

12

A1

A2

Current

input

I1

I2

I3

COM

14

Signal

output

12

Relay

signal

output

or

Load

Single-phase power

Relay

signal

output

Load

11

11

Power supply

voltage