Table of Contents
Advertisement
●Relationship of Mounting Distance between
K8AK-AS Relays and Input Current
(Reference Values)
The following diagram shows the relationship between the mounting
distances and the input current. If the relay is used with an input
current that exceeds these values, the temperature of the K8AK may
rise and shorten the life of the internal components.
AS (I3 terminal)
I = 1 A
60
50
I = 8 A
I = 5 A
I = 3 A
40
30
20
10
0
5
Distance between products d [mm]
Test method
Sample: K8AK-AS
Applied voltage: 240 VAC
Mounting distances: 0, 5, and 10 mm min.
K8AK
K8AK
K8AK
K8AK
No.1
No.2
No.3
No.4
DIN Track
Distance between products: d
Connections
Wiring Diagram
●Overcurrent Operation Diagram
(Output Relay Drive Method: Normally Open)
DIP switch setting: SW3 OFF.
Power supply
voltage
Set value
Input
Alarm indicator
Relay 11-14
Relay 11-12
Lock: Startup lock time (0 to 30 s)
LOCK
●Undercurrent Operation Diagram
(Output Relay Drive Method: Normally Closed)
DIP switch setting: SW3 ON.
Power supply
voltage
Set value
Input
Flashing
Alarm indicator
Relay 11-14
Relay 11-12
T
10
15
K8AK
No.5
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
11
Signal
Relay
output
signal
12
output
Load
Note: 1. The K8AK-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.
K8AK-AS
Single-phase power
A1
Power supply
voltage
A2
I1
Current
I2
or
input
I3
COM
14
11
Signal
Relay
output
signal
12
output
Load
4
Advertisement
Table of Contents
