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Ratings and Specifications
Input Range
Model
Range
*1
0 to 20 mA AC/DC
0 to 100 mA AC/DC
K8AK-AS1
0 to 500 mA AC/DC
0 to 1 A AC/DC
K8AK-AS2
0 to 5 A AC/DC
0 to 8 A AC/DC
0 to 100 A AC
K8AK-AS3
0 to 200 A AC
*1 The range is selected using connected terminals.
*2 The K8AK-AS3 is designed to be used in combination with an OMRON K8AC-CT200L Current Transformer (CT). (Direct input is not possible.)
Ratings
Power supply voltage Isolated power supply
Power consumption
Operating value setting range (SV)
Operating value
Reset value setting range (HYS.)
Reset method
Operating time setting range (T)
Startup lock time setting range (LOCK)
Note: Enabled only for overcurrent operation.
Indicators
Input impedance
Output relays
Output relay ratings
Ambient operating temperature
Storage temperature
Ambient operating humidity
Storage humidity
Altitude
Terminal screw tightening torque
Connection
Setting range
terminal
I1-COM
2 to 20 mA AC/DC,
10 to 100 mA AC/
I2-COM
DC, 50 to 500 mA
I3-COM
AC/DC
I1-COM
0.1 to 1 A AC/DC,
I2-COM
0.5 to 5 A AC/DC,
0.8 to 8 A AC/DC
I3-COM
I2-COM
10 to 100 A AC
*2
20 to 200 A AC
*2
I3-COM
24 VAC/DC
100 to 240 VAC
24 VAC/DC: 2.0 VA/1.1 W max.
100 to 240 VAC: 4.6 VA max.
10% to 100% of the maximum value of the setting range
K8AK-AS1:
2 to 20 mA AC/DC
10 to 100 mA AC/DC
50 to 500 mA AC/DC
K8AK-AS2:
0.1 to 1 A AC/DC (Compatible with commercially available CTs.)
0.5 to 5 A AC/DC (Compatible with commercially available CTs.)
0.8 to 8 A AC/DC
K8AK-AS3:
When used with the OMRON CT (K8AC-CT200L).
10 to 100 A AC
20 to 200 A AC
100% operation at set value
5% to 50% of operating value
Manual reset/automatic reset (switchable)
Note: Manual reset: Turn OFF power supply for 1 s or longer.
0.1 to 30 s
0 to 30 s
(The startup lock timer starts when the input has reached approximately 30% or more of the set value.)
Note: Enabled only for overcurrent operation.
Power (PWR): Green, Relay output (RY): Yellow, Alarm outputs (ALM): Red
Refer to Input Range on this page.
One SPDT relay (NO/NC switched using DIP switch.)
Rated load
Resistive load
5 A at 250 VAC
5 A at 30 VDC
Maximum contact voltage: 250 VAC or 30 VDC
Max. switching current: 5 A
Maximum switching capacity: 1,250 VA, 150 W
Mechanical life: 10 million operations min.
Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations
3 A at 250 VAC/30 VDC:100,000 operations
−20 to 60°C (with no condensation or icing)
−25 to 65°C (with no condensation or icing)
25% to 85% (with no condensation)
25% to 85% (with no condensation)
2,000 m max.
0.49 N·m
Input impedance
Input type
Approx. 5 Ω
Direct input
Approx. 1 Ω
Direct input
Approx. 0.2 Ω
Direct input
Approx. 0.12 Ω
Direct input
(Load : 0.5 VA)
or commer-
cially avail-
Approx. 0.02 Ω
able CT
(Load : 1.5 VA)
Approx. 0.02 Ω
---
(Load : 3 VA)
OMRON CT Continuous input at 120% with
---
,
---
OMRON CT
K8AK-AS
Overload capacity
Continuous input at
120% of maximum input
1 s at 150%
an OMRON CT (K8AC-
CT200L).
30 s at 200%
1 s at 600%
* CT capacity on primary side.
2
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