K8AK-PM
3-phase voltage, phase sequence, phase loss relay
K8AK-PM monitors overvoltages, undervoltages, phase sequence and phase loss for 3-phase, 3-wire or 4-wire power supplies, in one unit. This relay features a switch setting for 3-phase, 3-wire or 3-phase, 4-wire power supply.
- Worldwide power specifications supported by one unit
- Phase sequence, phase loss: Operation reaction time 0.1 s maximum
- Overvoltages or undervoltages: Operation time setting from 0.1 to 30 s
- Relay warning status can easily be monitored using the LED indicator
- Easy wiring with ferrules
Specifications & ordering info
Ordering information
Specifications
3-phase, 3-wire mode: 200, 220, 230, 240 VAC, 3-phase, 4-wire mode: 115, 127, 133, 138 VAC |
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3-phase, 3-wire mode: 380, 400, 415, 480 VAC, 3-phase, 4-wire mode: 220, 230, 240, 277 VAC |
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Overvoltage = -30% to 25% of maximum rated input voltage1 Undervoltage = -30% to 25% of maximum rated input voltage1 |
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Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC) |
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±0.5% full scale (at 25°C and an ambient humidity of 65% at the rated power supply voltage, DC or 50/60 Hz sine wave input) |
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±50 ms (at 25°C and 65% humidity, rated power supply voltage) |
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Power (PWR): Green LED, relay output (RY): Yellow LED, alarm outputs (ALM 1/2): Red LED |
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EN 60947-5-1 |
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UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC |
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