Omron K8AK-VS Quick Start Manual

Single-phase Voltage Relay
K8AK-VS
Ideal for voltage monitoring for
industrial facilities and equipment.
• Monitor for overvoltages or undervoltages.
• Manual resetting and automatically resetting supported by one
Relay.
• One SPDT output relay, 5 A at 250 VAC (resistive load).
• Output relay can be switched between normally open and
normally closed.
• Process control signal (0 to 10 V) and current splitter input
supported.
• Output status can be monitored using LED indicator.
• Input frequency of 40 to 500 Hz supported.
• Inputs are isolated from the power supply.
Refer to Safety Precautions for the K8AK Series on page 86.
Refer to page 30 for commonly asked questions.
Ordering Information
List of Models
Control power supply
Setting range
1 to 10 V AC/DC 24 VAC/DC
3 to 30 V AC/DC
100 to 240 VAC
15 to 150 V AC/DC
20 to 200 V AC/DC 24 VAC/DC
30 to 300 V AC/DC
100 to 240 VAC
60 to 600 V AC/DC
Ratings and Specifications
Input Range
Model Range*
0 to 10 V AC/DC
K8AK-VS2 0 to 30 V AC/DC
0 to 150 V AC/DC
0 to 200 V AC/DC
K8AK-VS3 0 to 300 V AC/DC
0 to 600 V AC/DC
* The range is selected using connected terminals.
voltage
K8AK-VS2 24 VAC/DC
K8AK-VS2 100-240 VAC
K8AK-VS3 24 VAC/DC
K8AK-VS3 100-240 VAC
Connection terminal
V1-COM
V2-COM
V3-COM
V1-COM
V2-COM
V3-COM
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Model
Setting range Input impedance
Approx. 120 kΩ
1 to 10 V AC/DC,
3 to 30 V AC/DC, Approx. 320 kΩ
15 to 150 V AC/DC
Approx. 1.6 MΩ
Approx. 1.2 MΩ
20 to 200 V AC/DC,
30 to 300 V AC/DC, Approx. 1.7 MΩ
60 to 600 V AC/DC
Approx. 3.1 MΩ
Overload capacity
Continuous input at
115% of maximum input
10 s at 125%
(up to 600 VAC)
1