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Single-phase Voltage Relay
K8AB-VS
Ideal for voltage monitoring for industrial
facilities and equipment.
• Monitor for overvoltages or undervoltages.
• Manual resetting and automatically resetting supported by one
Relay.
• One SPDT output relay, 6 A at 250 VAC (resistive load).
• Switch the output relay between normally ON and normally OFF
operation.
• Process control signal (0 to 10 V) and current splitter input
supported.
• Relay warning status easily monitoring using LED indicator.
• Input frequency of 40 to 500 Hz supported.
• Easy wiring with ferrules
2 × 2.5 mm
solid or 2 × 1.5 mm
2
• CE mark compliance certified by third party.
UL certification pending.
Model Number Structure
■ Model Number Legend
K8AB-@@
1
2 3
4
1. Basic Model
K8AB:
Measuring and Monitoring Relays
2. Functions
VS:
Single-phase Voltage Relay (One-sided operation)
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. N143-E1-01
2
standard ferrules.
Single-phase Voltage Relay
K8AB-VS
1
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Related Manuals for Omron K8AB-VS Series
Summary of Contents for Omron K8AB-VS Series
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Page 1: Model Number Structure
Single-phase Voltage Relay K8AB-VS Ideal for voltage monitoring for industrial facilities and equipment. • Monitor for overvoltages or undervoltages. • Manual resetting and automatically resetting supported by one Relay. • One SPDT output relay, 6 A at 250 VAC (resistive load). •... -
Page 2: Ordering Information
Ordering Information ■ List of Models Single-phase Voltage Relay Measuring voltage Supply voltage Model (See note.) 6 to 60 mV AC/DC, 24 VDC K8AB-VS1 24 VDC 10 to 100 mV AC/DC, 24 VAC K8AB-VS1 24 VAC 30 to 300 mV AC/DC 100-115 VAC K8AB-VS1 100-115 VAC 200-230 VAC... -
Page 3: Specifications
■ Specifications − 20 to 60°C (with no condensation or icing) Ambient operating temperature − 40 to 70°C (with no condensation or icing) Storage temperature Ambient operating humidity 25% to 85% Storage humidity 25% to 85% Altitude 2,000 m max. Operating voltage range 85% to 110% of rated operating voltage Rated power supply frequency... -
Page 4: Wiring Diagram
Connections ■ Wiring Diagram Overcurrent Operation Diagram Single-phase power (Output: Normally Closed) Control power Hysteresis Operating (5% to 50% of operating value) power Operating value Input Input Flashing Alarm indicator Relay T: Operating time (0.1 to 30 s) Output Alarm T1: Startup lock time (1 or 5 s) Note: The power ON lock prevents unnecessary alarms from being generated during the instable period when the power is first... -
Page 5: Dip Switch Functions
■ Function Selection DIP Switch DIP Switch Functions Function Default SW1 Power ON lock OFF 1 s time DIP Switch SW2 Resetting method OFF Manual reset Automatic reset SW3 Relay drive OFF Normally open (normally method OFF) Normally closed (normally SW4 Operating mode OFF Overvoltage monitoring Undervoltage monitoring... -
Page 6: Safety Precautions
1. Do not install the product near devices generating strong high 30 Vr.m.s with 42.4 V at peak or DC60V maximum. frequency waves or surges. Recommended power-supply: Model S8VS-06024@. (Omron 2. When using a noise filter, check the voltage and current and product) install it as close to the product as possible. -
Page 7: Warranty And Application Considerations
Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS.