Omron K8AK-VW2 Manual

Single-phase Overvoltage/Undervoltage Relays
K8AK-VW
Ideal for voltage monitoring for
industrial facilities and equipment.
• Monitor for overvoltages and undervoltages simultaneously.
Separate settings and outputs supported for overvoltages and
undervoltages.
• Manual resetting and automatically resetting supported by one
Relay.
• Pre-alarm Monitoring Mode.
• Two SPDT output relays, 5 A at 250 VAC (resistive load).
• 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 38 for commonly asked questions.
Ordering Information
List of Models
Setting range Supply voltage
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-VW2 0 to 30 V AC/DC
0 to 150 V AC/DC
0 to 200 V AC/DC
K8AK-VW3 0 to 300 V AC/DC
0 to 600 V AC/DC
* The range is selected using connected terminals.
Model
K8AK-VW2 24 VAC/DC
K8AK-VW2 100 to 240 VAC
K8AK-VW3 24 VAC/DC
K8AK-VW3 100 to 240 VAC
Connection terminal Setting range
V1-COM
1 to 10 V AC/DC
V2-COM 3 to 30 V AC/DC
15 to 150 V AC/DC
V3-COM
V1-COM
20 to 200 V AC/DC
V2-COM 30 to 300 V AC/DC
60 to 600 V AC/DC
V3-COM
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Input impedance
Approx. 120 kΩ
Approx. 320 kΩ
Approx. 1.6 MΩ
Approx. 1.2 MΩ
Approx. 1.7 MΩ
Approx. 3.1 MΩ
Overload capacity
Continuous input at 115% of
maximum input.
10 s at 125%
(up to 600 VAC)
1