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PDF K8AB-PM Data sheet ( Hoja de datos )
| Número de pieza | K8AB-PM | |
| Descripción | Three-phase Phase-sequence Phase-loss Relay | |
| Fabricantes | Omron | |
| Logotipo |  |
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Three-phase Phase-sequence Phase-loss Relay
K8AB-PM
Ideal for monitoring 3-phase power supplies
for industrial facilities and equipment.
• Monitor overvoltages, undervoltages, phase sequence, and
phase loss for three-phase 3-wire or 4-wire power supplies with
just one Unit.
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).
Output overvoltages and undervoltages using separate relays.
• World-wide power specifications supported by one Unit
(switchable).
• Output status can be monitored using LED indicator.
Refer to Safety Precautions for the K8AB
Series. Refer to page 8 for the Q&A section.
CSM_K8AB-PM_DS_E_3_1
Model Number Structure
■ Model Number Legend
K8AB-@@
1 23
1. Basic Model
K8AB: Measuring and Monitoring Relays
2. Functions
PM: Three-phase Phase-sequence Phase-loss 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
Ordering Information
■ List of Models
Three-phase Phase-sequence Phase-loss Relay
Rated input (See note 2.)
3-phase 3-wire mode
200, 220, 230, 240 VAC
3-phase 4-wire mode
115, 127, 133, 138 VAC
3-phase 3-wire mode
380, 400, 415, 480 VAC
3-phase 4-wire mode
220, 230, 240, 277 VAC
wwwN.Doateta: S1h. eTeht4reUe.-cpohmase 3-wire or 4-wire and the input range are switched using a DIP switch.
2. The power supply is shared with the rated input voltage.
Model
K8AB-PM1
K8AB-PM2
1
1 page  
Nomenclature
■ Front
Terminal block
(See notes 1 and 2.)
Power indicator
Relay status indicator
Alarm indicator
0.1
Overvoltage knob
(OVER)
Undervoltage knob
(UNDER)
Operating time knob (T)
Terminal block
(See notes 1 and 2.)
K8AB-PM
Indicators
Item
Meaning
Power indicator
(PWR: Green)
Lit when power is being supplied (see note).
Relay status indicator Lit when relay is operating (normally lit).
(RY: Yellow)
Alarm Overvoltage:
indicator Red
Lit when there is an overvoltage.
The indicator flashes to indicate the error status after
the overvoltage has exceeded the threshold value
while the operating time is being clocked.
Undervoltage: • Lit when there is an undervoltage or phase loss.
Red The indicator flashes to indicate the error status
after the undervoltage has exceeded the threshold
value while the operating time is being clocked.
• Lit when there is a phase sequence error.
Note: The input across L1 and L2 is used for the internal power
supply. Therefore, the power indicator will not be lit if there is no
input across L1 and L2.
Setting Knobs
Item
Usage
Overvoltage knob
(OVER)
Can be set between −30% and 25% of the rated
input.
Undervoltage knob
(UNDER)
Can be set between −30% and 25% of the rated
input.
Operating time knob (T) Used to set the operating time to 0.1 to 30 s.
Note: 1. Use either a solid wire of 2.5 mm2 maximum or a ferrule with
insulating sleeve for the terminal connection.
The length of the exposed current-carrying part inserted
into the terminal must be 8 mm or less to maintain dielectric
strength after connection.
For 2.5 mm2 or
smaller solid wires
For ferrules with
insulating sleeves
8 mm max.
Recommended ferrules
Phoenix Contact
• Al 1,5-8BK (for AWG16)
• Al 1-8RD (for AWG18)
• Al 0,75-8GY (for AWG18)
2. Tightening torque
Recommended: 0.49 N·m
Maximum:
0.54 N·m
8 mm max.
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet K8AB-PM.PDF ] | |
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