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●Operating Time
The operating time is set using the operating time knob (T).
The operating time can be set to between 0.1 and 30 s.
If the input current exceeds (drops lower than) the set value, the alarm indicator will start flashing for the set period and then stay lit.
●Startup Lock Time
The startup lock time is set using the startup lock time knob (LOCK).
The startup lock time can be set to between 0 and 30 s.
The startup lock time will start when the input current reaches 30% or more of the set value.
Use startup lock time to prevent unwanted operation, e.g., as a result of inrush current.
Note: Enabled only for overcurrent operation.
Dimensions
Single-phase Current Relays
K8AK-AS1
K8AK-AS2
K8AK-AS3
OMRON CT
K8AC-CT200L
Optional Parts for DIN Track Mounting
●DIN Tracks
PFP-100N
PFP-50N
22.5
9.3
9.3
1.7
1.7
4.7
11
63
Four M4 × 6 screws
54
50
8.5
34.5
33.5
6
57
14.5
14.5
86
5.2
10
20
10
1.8
4.1
5.9
76
4.5
15
25
25
10
1,000 (500)*
Current set value
30% of current
set value
Startup lock timer start
100
72
20
17
13.5
81.5
30 dia.
Note: The OMRON Current Transformer (CT) is
designed to be used with the K8AK-AS3.
Use terminals k and l for connections.
(Terminals kt and lt are not used.)
7.3
±0.15
35
±0.3
25
25
15 (5)*
10
*Dimensions in parentheses are for the PFP-50N.
K8AK-AS
Inrush current
Startup lock time
There are no outputs
during this period.
(Unit: mm)
90
5
Mounting Hole Dimensions
Two M5 screw holes or
two 5.5-dia. holes
76
27
±0.15
1
7
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