Omron K8AK-AS1 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 for the K8AK Series on page 86.
Refer to page 13 for commonly asked questions.
Ordering Information
List of Models
Setting range
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 combina tion 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
1
Supply voltage
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.
Model
●Commercially Available CTs*
CT current on secondary
Appearance
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
side
K8AK-AS2