K8AK-VS

Features

Single-phase voltage relay

These single-phase voltage relays are for monitoring over- and undervoltages. Manual resetting and automatic resetting are supported by one relay. Relay warning status can easily be monitored using the LED indicator.
  • Single-phase voltage relay
  • In 22.5 mm wide industrial housing
  • Under or over control
  • Supply voltages: 24 VAC/DC, 100 to 240 VAC
  • Easy wiring with ferrules
Specifications & ordering info

Ordering information

Measuring current

Supply voltage

Order code

1 to 10 VAC/DC,
3 to 30 VAC/DC,

15 to 150 VAC/DC

 

24 VAC/DC

K8AK-VS2 24 VAC/DC

100 to 240 VAC

K8AK-VS2 100-240 VAC

20 to 200 VAC/DC,
30 to 300 VAC/DC,

60 to 600 VAC/DC

24 VAC/DC

K8AK-VS3 24 VAC/DC

100 to 240 VAC

K8AK-VS3 100-240 VAC

Specifications

Ambient operating temperature

-20 to 60°C (with no condensation or icing)

Storage temperature

-25 to 65°C (with no condensation or icing)

Operating voltage range

85% to 110% of rated operating voltage

Rated power supply frequency

50/60 Hz±5 Hz ( AC power supply)

Output relays

(1 × SPDT, normally closed operation)

Resistive load

5 A at 250 VAC or at 30 VDC

Maximum contact voltage

250 VAC or 30 VDC

Maximum contact current

5 A

Maximum switching capacity

1,250 VA, 150 W

Mechanical life

10,000,000 operations

Electrical life

50,000 operations at 5 A, 250 VAC or 30 VDC

Degree of protection

Terminal section: IP20

Case material

PC and ABS

Weight

Approx. 150 g

Operating power

Isolated power supply

2.0 VA/1.1 W max. at 24 VAC/DC, 4.6 VA max. at 100 to 240 VA

Operate (SV)

Operating value setting range

10% to 100% of maximum measuring voltage

Operating value

100% operation at set value

Reset (HYS.)

Hysteresis

5% to 50% of operating value

Resetting method

Manual reset/automatic reset (switchable)
Manual reset: Turn OFF operating power for 1 s or longer

Operating time (T)

0.1 to 30 s

Power ON lock (LOCK)

1 s or 5 s (Switched using DIP switch)
(value when input rapidly changes from 0 to 100%. The operating time is the shortest at this point)

Repeat accuracy

Operating value

±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage, DC or 50/60 Hz sine wave input)

Operating time

±50 ms (at 25°C and 65% humidity, rated power supply voltage)

Input frequency

40 to 500 Hz

Overload capacity

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

Indicators

LED power (PWR): Green LED, relay output (RY): Yellow LED, alarm output (ALM): Red LED

Applicable standards

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 and CCC

Size in mm (H × W × D)

90 × 22.5 × 100

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