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PDF K8AB-PW Data sheet ( Hoja de datos )
| Número de pieza | K8AB-PW | |
| Descripción | Three-phase Voltage Relay | |
| Fabricantes | Omron | |
| Logotipo |  |
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Three-phase Voltage Relay
K8AB-PW
Ideal for monitoring 3-phase power supplies
for industrial facilities and equipment.
• Monitor overvoltages and undervoltages for three-phase 3-wire
or 4-wire power supplies.
DIP switch setting for 3-phase 3-wire or 3-phase 4-wire power
supply.
• Two SPDT output relays, 6 A at 250 VAC (resistive load).
Separate outputs possible for overvoltages and undervoltages.
• World-wide power specifications supported by one Unit
(switchable using DIP switch).
• Relay status can be monitored using LED indicator.
Refer to Safety Precautions for the K8AB
Series. Refer to page 9 for the Q&A section.
Model Number Structure
■ Model Number Legend
K8AB-@@
1 23
1. Basic Model
K8AB: Measuring and Monitoring Relays
2. Functions
PW: Three-phase Voltage Relay (Simultaneous upper and lower monitoring)
3. Rated Input Voltage
1: 115, 127, 133, 138, 200, 220, 230, 240 VAC
2: 220, 230, 240, 277, 380, 400, 415, 480 VAC
CSM_K8AB-PW_DS_E_2_1
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1
1 page  
Connections
■ Wiring Diagram
Overvoltage and Undervoltage Operation Diagram
Overvoltage
setting value
L1
Input L2
L3
Undervoltage setting value
Overvoltage alarm indicator
Undervoltage alarm indicator
Flashing
Lit
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
Flashing
Lit
T T: Operating time (0.1 to 30 s)
Overvoltage relay
Undervoltage relay
T T: Operating time (0.1 to 30 s)
T1: Power ON lock (1 s or 5 s)
T1
Note: 1. K8AB-PW output relay is normally operative.
2. The power ON lock function prevents unnecessary alarms from
being generated during the unstable period when the power is first
turned ON. There is no relay output during timer operation.
3. L1 and L2 use the same power supply and will not operate due to an
undervoltage if they drop below the rated input of 60%.
K8AB-PW
N L1 L2 L3
Voltage input
L1
L2
L3
N
14
Signal output
12
11
Overvoltage
alarm
24
Signal output
22
21
Undervoltage
alarm
Load
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet K8AB-PW.PDF ] | |
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