Omron K8AB-VW Manual
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Omron K8AB-VW Manual

Omron K8AB-VW Manual

Single-phase voltage relay
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Single-phase Voltage Relay
K8AB-VW
Ideal for voltage monitoring for industrial
facilities and equipment.
• Monitor for overvoltages and undervoltages simultaneously.
Separate settings and outputs supported for overvoltages and
undervoltages.
• Manual resetting and automatically resetting supported by one
Relay.
• Pre-alarm Monitoring Mode.
• Two SPDT output relays, 6 A at 250 VAC (resistive load).
• Process control signal (0 to 10 V) and current splitter input
supported.
• Output status can be monitored using LED indicator.
• Input frequency of 40 to 500 Hz supported.
Model Number Structure
■ Model Number Legend
K8AB-@@
1
2 3
4
1. Basic Model
K8AB:
Measuring and Monitoring Relays
2. Functions
VW:
Single-phase Voltage Relay (Simultaneous upper and lower limit monitoring)
3. Measuring Current
1:
6 to 60 mV AC/DC, 10 to 100 mV AC/DC, 30 to 300 mV AC/DC
2:
1 to 10 V AC/DC, 3 to 30 V AC/DC, 15 to 150 V AC/DC
3:
20 to 200 V AC/DC, 30 to 300 V AC/DC, 60 to 600 V AC/DC
4. Supply Voltage
24 VDC:
24 VDC
24 VAC:
24 VAC
100-115 VAC: 100 to 115 VAC
200-230 VAC: 200 to 230 VAC
Cat. No. N144-E1-02
Single-phase Voltage Relay
K8AB-VW
1

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Summary of Contents for Omron K8AB-VW

  • Page 1 Single-phase Voltage Relay K8AB-VW Ideal for voltage monitoring for industrial facilities and equipment. • Monitor for overvoltages and undervoltages simultaneously. Separate settings and outputs supported for overvoltages and undervoltages. • Manual resetting and automatically resetting supported by one Relay. • Pre-alarm Monitoring Mode.

  • Page 2: Ordering Information

    15 to 150 V AC/DC V3-COM Approx. 1.2 M Ω K8AB-VW3 20 to 200 V AC/DC V1-COM Approx. 1.7 M Ω 30 to 300 V AC/DC V2-COM Approx. 3.1 M Ω 60 to 600 V AC/DC V3-COM K8AB-VW Single-phase Voltage Relay Cat. No. N144-E1-02...
  • Page 3 Unit will not operate normally. If an unwanted current path exists, use a K8AB model with an AC power supply or use an isolated DC power supply. K8AB-VW Cat. No. N144-E1-02...
  • Page 4 Shock resistance 100 m/s , 3 times each in 6 directions along three axes (up/down, left/right, forward/backward) Degree of protection Terminal section: Finger protection Note: The reset value is valid only for automatic resets. K8AB-VW Single-phase Voltage Relay Cat. No. N144-E1-02...
  • Page 5 T1: Power ON lock (1 s or 5 s) Undervoltage (AL2) relay T1: Power ON lock (1 s or 5 s) Note: 1. The K8AB-VW output relay is normally operative. Note: 1. The K8AB-VW output relay is normally operative. 2. The power ON lock prevents unnecessary alarms from being generated during the instable period when the power 2.

  • Page 6: Setting Knobs

    8 mm max. 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 K8AB-VW Single-phase Voltage Relay Cat. No. N144-E1-02...

  • Page 7: Dip Switch Settings

    Note: Models with DC power supply have a non-isolated power supply. The input and power supply terminals are connected internally so the K8AB-VW will not operate normally if an unwanted current path is created. If an unwanted current path exists, use a model with an AC power supply or isolate with an Voltage input external power supply.

  • Page 8: Setting Method

    If the input exceeds (or drops lower than) the voltage setting, the alarm indicator will start flashing for the set period and then stay lit. Dimensions (Unit: mm) Single-phase Voltage Relays K8AB-VW1 22.5 K8AB-VW2 K8AB-VW3 K8AB-VW Single-phase Voltage Relay Cat. No. N144-E1-02...

  • Page 9: Safety Precautions

    30 Vr.m.s with 42.4 V at peak or DC60V maximum. 2. When using a noise filter, check the voltage and current and Recommended power-supply: Model S8VS-06024@. (Omron install it as close to the product as possible. product) 3.
  • Page 10 Models with a DC power supply have a non-isolated power supply. The input and power supply are connected internally so the K8AB-VW@ will not operate normally if an unwanted current path exists. If an unwanted current path exists, use a K8AB model with an AC power supply or use an isolated DC power supply.

  • Page 11: Terms And Conditions Of Sale

    Buyer indemnifies Omron against all related costs or expenses. rights of another party. 10. Force Majeure. Omron shall not be liable for any delay or failure in delivery 16. Property; Confidentiality. Any intellectual property in the Products is the exclu-...
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