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K8AK-VW

3

Specifications

Connections

Terminal Diagram

Note: 1.

There is no polarity for the DC power supply input.

2.

For the voltage input, you can input only from the C terminal and one other terminal.

3.

Refer to 

Setting Ranges and Wiring Connections

 for information on the V1, V2, and V3 voltage input terminals.

4.

Use the recommended ferrules if you use twisted wires.

Allowable operating voltage range

85% to 110% of rated power supply voltage

Allowable operating frequency range

50/60 Hz 

±

5 Hz

Input frequency range

40 to 500 Hz

Overload capacity

Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC).

Repeat error

Operating value

±

0.5% full scale (at 25

°

C and an ambient humidity of 65% at the rated power supply voltage, DC and 50/60 

Hz sine wave input)

Operating time

±

50 ms (at 25

°

C and 65% humidity, rated power supply voltage)

Applicable stan-
dards

Conforming standards

EN 60947-5-1
Installation environment (pollution level 2, installation category III)

EMC

EN 60947-5-1

Safety standards

UL 508 (Recognition), Korean Radio Waves Act (Act 10564), 
CSA: C22.2 No.14, CCC: GB/T 14048.5

Insulation resistance

20 M

Ω

 min.

Between all external terminals and the case
Between all power supply terminals and all input terminals
Between all power supply terminals and all output terminals
Between all input terminals and all output terminals

Dielectric strength

2,000 VAC for 1 min

Between all external terminals and the case
Between all power supply terminals and all input terminals
Between all power supply terminals and all output terminals
Between all input terminals and all output terminals

Noise immunity 

1,500 V power supply terminal common/normal mode
Square-wave noise of ±1 

μ

s/100 ns pulse width with 1-ns rise time

Vibration resistance

Frequency: 10 to 55 Hz, 0.35-mm single amplitude
10 sweeps of 5 min each in X,Y, and Z directions

Shock resistance

100 m/s

2

, 3 times each in 6 directions along 3 axes

Degree of protection

Terminals: IP20

V1

V2

V3

A1

A2

C

11

12

Control Output

Relay output

250 VAC, 5 A (resistive load)
30 VDC, 5 A (resistive load)

14

B

 Power Supply Voltage

100 to 240 VAC

24 VAC/DC

(No polarity)

Relay Output

Common

Relay Output

Common

A

 Voltage Input

VW2

30 V max.

150 V max.

VW3

10 V max.

300 V max.

600 V max.

200 V max.

21

24

22

K8AK-VW2 100-240VAC

A

B

AL2

AL1

C

V1

V2

V3

V2

V1

V3

C

A1

A2

A1

A2

11

12

14

21

24

22

Summary of Contents for 378174

Page 1: ...afety Precautions on page 9 Refer to page 8 for commonly asked questions For the most recent information on models that have been certified for safety standards refer to your OMRON website Setting ran...

Page 2: ...stive load 5 A at 250 VAC 5 A at 30 VDC Maximum switching capacity 1 250 VA 150 W Minimum load 5 VDC 10 mA reference values Mechanical life 10 million operations min Electrical life 5 A at 250 VAC or...

Page 3: ...4 CCC GB T 14048 5 Insulation resistance 20 M min Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all outp...

Page 4: ...is no relay output during timer operation V1 21 V2 V3 24 22 11 12 14 A1 A2 C A1 A2 Single phase power supply Load Power supply voltage Power supply AC DC t t1 t Delay 250 ms reference value Delay 250...

Page 5: ...tes 1 and 2 Terminal block See notes 1 and 2 Item Meaning Power indicator PWR Green Lit when power is being supplied Relay status indicator RY Yellow Lit when relay operates Not light when both AL1 an...

Page 6: ...perating mode are set using the DIP switch located on the bottom of the Unit Model Setting range Wiring connection K8AK VW2 1 to 10 V AC DC V1 COM 3 to 30 V AC DC V2 COM 15 to 150 V AC DC V3 COM K8AK...

Page 7: ...sing Input Terminal V3 COM The maximum setting range will be 600 VAC VDC and the setting range will be 60 to 600 V Operating Time The operating time is set using the operating time knob T The operatin...

Page 8: ...nnection Diagram How to Measure the Operating Time Overvoltage Change the input suddenly from 0 to 120 of the set value and measure the time until the Unit operates Undervoltage Change the input sudde...

Page 9: ...9 N m Use of the product beyond its life may result in contact welding or burning Make sure to consider the actual operating conditions and use the product within its rated load and electrical life co...

Page 10: ...rely and become difficult to see 15 Do not use the product if it is accidentally dropped The internal components may be damaged 16 Be sure you understand the contents of this catalog and handle the pr...

Page 11: ...CONNECTED WITH THE PRODUCTS WHETHER SUCH CLAIM IS BASED IN CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY Further in no event shall liability of Omron Companies exceed the individual price of the Pr...

Page 12: ...A Tel 1 847 843 7900 Fax 1 847 843 7787 Regional Headquarters OMRON EUROPE B V Wegalaan 67 69 2132 JD Hoofddorp The Netherlands Tel 31 2356 81 300 Fax 31 2356 81 388 Contact www ia omron com Tokyo JA...

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