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PDF K8AB-AS Data sheet ( Hoja de datos )
| Número de pieza | K8AB-AS | |
| Descripción | Single-phase Current Relay | |
| Fabricantes | Omron | |
| Logotipo |  |
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Single-phase Current Relay
K8AB-AS
Ideal for current monitoring for industrial
facilities and equipment.
• Monitor for overcurrents or undercurrents.
• Manual resetting and automatically resetting supported by one
Relay.
• Startup lock and operating time can be set separately.
• One SPDT output relay, 6 A at 250 VAC (resistive load).
• Output relay can be switched between normally open and
normally closed.
• Process control signal (4 to 20 mA) and commercial CT input
(0 to 1 A or 0 to 5 A) supported.
• Output status can be monitored using LED indicator.
• Inputs are isolated from the power supply.
Refer to Safety Precautions for the K8AB
Series. Refer to page 9 for the Q&A section.
CSM_K8AB-AS_DS_E_5_1
Model Number Structure
■ Model Number Legend
K8AB-@@
1 23
4
1. Basic Model
K8AB: Measuring and Monitoring Relays
2. Functions
AS: Single-phase Current Relay (One-sided operation)
3. Measuring Current
1: 2 to 20 mA AC/DC, 10 to 100 mA AC/DC, 50 to 500 mA AC/DC
2: 0.1 to 1 A AC/DC, 0.5 to 5 A AC/DC, 0.8 to 8 A AC/DC
3: 10 to 100 A AC, 20 to 200 A AC (See note.)
Note: The K8AB-AS3 is specially designed to be used in combination with the OMRON K8AC-CT200L Current Transformer (CT). (Direct input is
not possible.)
4. Supply Voltage
24 VAC/DC: 24 VAC/DC
100-115 VAC: 100 to 115 VAC
200-230 VAC: 200 to 230 VAC
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1 page  
Connections
■ Wiring Diagram
Overcurrent Operation Diagram
(Output Relay Drive Method: Normally
Open)
DIP switch setting: SW3 OFF.
Power supply
voltage
Hysteresis
(−5% to 50% of operating value)
Operating value
Input
Alarm indicator
Relay 11-14
Flashing
Lit
Relay 11-12
T: Operating time (0.1 to 30 s)
T
Lock: Startup lock time (0 to 30 s)
LOCK
Undercurrent Operation Diagram
(Output Relay Drive Method: Normally
Closed)
DIP switch setting: SW3 ON.
Power supply
voltage
Operating value
Input
Alarm indicator
Relay 11-14
Relay 11-12
Flashing
Lit
Hysteresis
(5% to 50% of operating value)
T T: Operating time (0.1 to 30 s)
K8AB-AS
Single-phase power
Single-phase power
Power supply
voltage
A1
A2
Current
input
I1
I2
I3
COM
or
14
Signal
output
12
Relay
signal
output
11
Power supply
voltage
A1
A2
Current
input
I1
I2
I3
COM
14
Signal
output
12
Relay
signal
output
11
Load
Load
Note: 1. The K8AB-AS3 is designed to be used in combination with
the OMRON K8AC-CT200L Current Transformer (CT).
2. There is no polarity when a DC current input is used.
3. Refer to the “Setting Ranges and Wiring Connections” as
the explanation of current input l1, l2, and l3 terminal.
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet K8AB-AS.PDF ] | |
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