Omron K8AK-AS Manual

Single-phase Current Relay
K8AK-AS
Ideal for Current Monitoring for
Industrial Facilities and Equipment.
• Monitor for overcurrents or undercurrents.
• Use commercially available CTs (CT current on secondary
side: 0 to 1 A or 0 to 5 A).
• Manual resetting and automatically resetting supported by one
Relay.
• Startup lock and operating time can be set separately.
• One SPDT output relay, 5 A at 250 VAC (resistive load).
• Output relay can be switched between normally open and
normally closed.
• Output status can be monitored using LED indicator.
• Inputs are isolated from the power supply.
Refer to Safety Precautions on page 9.
Refer to page 8 for commonly asked questions.
Ordering Information
List of Models
Setting range Power supply voltage
2 to 20 mA AC/DC, 24 VAC/DC
10 to 100 mA AC/DC,
100 to 240 VAC
50 to 500 mA AC/DC
0.1 to 1 A AC/DC, 24 VAC/DC
0.5 to 5 A AC/DC,
100 to 240 VAC
0.8 to 8 A AC/DC
24 VAC/DC
10 to 100 A AC*,
20 to 200 A AC*
100 to 240 VAC
*1 The K8AK-AS3 is designed to be used in combination with an OMRON K8AC-CT200L Current Transformer (CT). (Direct input is not possible.)
Accessory (Order Separately)
●OMRON CT
Appearance Input range
10 to 100 A AC,
20 to 200 A AC
Model
K8AK-AS1 24 VAC/DC
K8AK-AS1 100-240 VAC
K8AK-AS2 24 VAC/DC
K8AK-AS2 100-240 VAC
K8AK-AS3 24 VAC/DC
K8AK-AS3 100-240 VAC
Applicable
Model
Relay
K8AK-AS3 K8AC-CT200L
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
●Commercially Available CTs*
CT current on secondary
Appearance
side
0 to 1 A AC,
0 to 5 A AC
* If you use a commercially available CT, do not exceed the overload
capacity of the K8AK-AS2.
Applicable Relay
K8AK-AS2
1