K8AK-VW3 Rơ le bảo vệ điện áp Omron
Ideal for Voltage Monitoring for Industrial Facilities and Equipment. Monitor for overcurrents and undercurrents simultaneously.
• 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, 5 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.
• Inputs are isolated from the power supply.
| Setting range | Power supply voltage | Model |
|---|---|---|
| 1 to 10 V AC/DC 3 to 30 V AC/DC 15 to 150 V AC/DC |
24 VAC/DC | K8AK-VW2 24 VAC/DC |
| 100 to 240 VAC | K8AK-VW2 100-240 VAC | |
| 20 to 200 V AC/DC 30 to 300 V AC/DC 60 to 600 V AC/DC |
24 VAC/DC | K8AK-VW3 24 VAC/DC |
| 100 to 240 VAC | K8AK-VW3 100-240 VAC |
Input Range
| Model | Range* | Connection terminal | Setting range | Input impedance | Overload capacity |
|---|---|---|---|---|---|
| K8AK-VW2 | 0 to 10 V AC/DC |
V1-COM | 1 to 10 V AC/DC 3 to 30 V AC/DC 15 to 150 V AC/DC |
Approx. 120 kΩ | Continuous input at 115% of maximum input. 10 s at 125% (up to 600 VAC) |
| 0 to 30 V AC/DC |
V2-COM | Approx. 320 kΩ | |||
| 0 to 150 V AC/DC |
V3-COM | Approx. 1.6 MΩ | |||
| K8AK-VW3 | 0 to 200 V AC/DC |
V1-COM | 20 to 200 V AC/DC 30 to 300 V AC/DC 60 to 600 V AC/DC |
Approx. 1.2 MΩ | |
| 0 to 300 V AC/DC |
V2-COM | Approx. 1.7 MΩ | |||
| 0 to 600 V AC/DC |
V3-COM | Approx. 3.1 MΩ |
* The range is selected using connected terminals.
Ratings
| Power supply voltage |
Isolated power supply | 24 VAC/DC 100 to 240 VAC |
|---|---|---|
| Power consumption | 24 VAC/DC: 2.0 VA/1.1 W max. 100 to 240 VAC: 4.6 VA max. |
|
| Operating value setting range (AL1 and AL2) |
10% to 100% of the maximum value of the setting range K8AK-VW2: 1 to 10 V AC/DC 3 to 30 V AC/DC 15 to 150 V AC/DC K8AK-VW3: 20 to 200 V AC/DC 30 to 300 V AC/DC 60 to 600 V AC/DC |
|
| Operating value | 100% operation at set value | |
| Reset value | 5% of operating value (fixed) | |
| Reset method | Manual reset/automatic reset (switchable) Note: Manual reset: Turn OFF power supply for 1 s or longer. |
|
| Operating time setting range (T) | 0.1 to 30 s | |
| Power ON lock time (LOCK) | 1 s or 5 s (Switched using DIP switch.) | |
| Indicators | Power (PWR): Green, Relay output (RY): Yellow, Alarm outputs (AL1, AL2): Red | |
| Input impedance | Refer to Input Range on previous page. | |
| Output relays | Two SPDT relays (NC operation) | |
| Output relay ratings | Rated load Resistive load 5 A at 250 VAC 5 A at 30 VDC Maximum switching capacity: 1,250 VA, 150 W Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations 3 A at 250 VAC or 30 VDC: 100,000 operations |
|
| Ambient operating temperature | -20 to 60°C (with no condensation or icing) | |
| Storage temperature | -25 to 65°C (with no condensation or icing) | |
| Ambient operating humidity | 25% to 85% (with no condensation) | |
| Storage humidity | 25% to 85% (with no condensation) | |
| Altitude | 2,000 m max. | |
| Terminal screw tightening torque | 0.49 to 0.59 N·m | |
| Terminal wiring method | Recommended wire Solid wire: 2.5 mm2 Twisted wires: AWG16, AWG18 Note: 1. Ferrules with insulating sleeves must be used with twisted wires. Note: 2. Two wires can be twisted together. Recommended ferrules Al 1,5-8BK (for AWG16) manufactured by Phoenix Contact Al 1-8RD (for AWG18) manufactured by Phoenix Contact Al 0,75-8GY (for AWG18) manufactured by Phoenix Contact |
|
| Case color | N1.5 | |
| Case material | PC and ABS, UL 94 V-0 | |
| Weight | Approx. 150 g | |
| Mounting | Mounts to DIN Track. | |
| Dimensions | 22.5 × 90 × 100 mm (W×H×D) | |
Specifications
| Allowable operating voltage range | 85% to 110% of rated power supply voltage | |
|---|---|---|
| Allowable operating frequency range | 50/60 Hz ±5 Hz | |
| Input frequency range | 40 to 500 Hz | |
| Overload capacity | Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC). | |
| Repeat error |
Operating value | ±0.5% full scale (at 25°C and an ambient humidity of 65% at the rated power supply voltage, DC and 50/60 Hz sine wave input) |
| Operating time | ±50 ms (at 25°C and 65% humidity, rated power supply voltage) | |
| Applicable standards |
Conforming standards |
EN 60947-5-1 Installation environment (pollution level 2, installation category III) |
| EMC | EN 60947-5-1 | |
| Safety standards | UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA: C22.2 No.14, CCC: GB/T 14048.5 |
|
| Insulation resistance | 20 MΩ min. Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all output terminals Between all input terminals and all output terminals |
|
| Dielectric strength | 2,000 VAC for 1 min Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all output terminals Between all input terminals and all output terminals |
|
| Noise immunity | 1,500 V power supply terminal common/normal mode Square-wave noise of ±1 μs/100 ns pulse width with 1-ns rise time |
|
| Vibration resistance | Frequency: 10 to 55 Hz, 0.35-mm single amplitude 10 sweeps of 5 min each in X,Y, and Z directions |
|
| Shock resistance | 100 m/s2, 3 times each in 6 directions along 3 axes | |
| Degree of protection | Terminals: IP20 | |
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