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K8AK-PM1 Safety Light Curtain | F3SJ Series Industrial Safety Sensor

The OMRON K8AK-PM1 is a three-phase voltage and phase-sequence phase-loss relay designed for monitoring power supplies in industrial facilities and equipment . This compact unit (22.5 mm width) provides comprehensive protection by simultaneously monitoring for overvoltage, undervoltage, phase sequence, and phase loss .

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Key Specifications Parameter Specification Brand OMRON Model K8AK-PM1 Series K8AK-PM Product Type Three-phase Voltage and Phase-sequence Phase-loss Relay Monitoring Functions Overvoltage, Undervoltage, Phase Sequence, Phase Loss Rated Input Voltage (3W3) 200, 220, 230, 240 VAC (selectable) Rated Input Voltage (3W4) 115, 127, 133, 138 VAC (selectable) Input Frequency 50/60 Hz Input Load Approx. 4.4 VA Output Configuration 2 x SPDT relays (1c x 2) Output Contact Rating 5 A at 250 VAC / 5 A at 30 VDC (resistive load) Maximum Switching Capacity 1250 VA / 150 W Mechanical Life 10 million operations min. Electrical Life (5A) 50,000 operations Operating Value Setting Range -30% to +25% of rated input voltage (over/under) Operating Value Accuracy 100% operation at set value Reset Value 5% of operating value (fixed) Reset Method Automatic reset Operating Time Setting (Over/Under) 0.1 to 30 seconds (adjustable) Operating Time (Phase Sequence) 0.1 s ±0.05 s Operating Time (Phase Loss) 0.1 s max.