K8AK-AW 1-phase control Single-phase current relay, window type These single-phasecurrent relays monitor over- and undercurrents.Manual resetting and automaticresettingare supportedby one relay. The start-uplock and operating time can be set separately. The relay warning status is easily monitoredwith the LED indicator. • Single-phase current window relay • In 22.5 mm wide industrial housing • Under and over control • Supply voltages: 24 VAC/DC, 100 to 240 VAC • Easy wiring with ferrules Ordering information Measuring currentSupply voltage Order code 2 to 20 mA AC/DC, 10 to 100 mA AC/DC, 50 to 500 mA AC/DC 0.1 to 1 A AC/DC, 0.5 to 5 A AC/DC 10 to 100 A AC, 20 to 200 A AC 24 VAC/DCK8AK-AW1 24 VAC/DC 100 to 240VACK8AK-AW1 100-240 VAC 24 VAC/DCK8AK-AW2 24 VAC/DC 100 to 240VACK8AK-AW2 100-240 VAC 24 VAC/DCK8AK-AW3 24 VAC/DC 100 to 240VACK8AK-AW3 100-240 VAC Accessories Current transformerInput range Applicable relayOrder code 10 to 100A AC, 20 to 200 A AC K8AK-AW3K8AC-CT200L Note: The K8AK-AW3 is designed to be used in combination with the K8AC-CT200L (direct input not possible) Specifications Ambient operating temperature –20 to 60°C (with no condensation or icing) Storage temperature –25 to 65°C (with no condensation or icing) Operating voltage range85% to 110% of rated operating voltage Rated power supply frequency 50/60 Hz±5 Hz (AC power supply) Output relays (1 × SPDT, normally closed operation) Resistive load 5 A at 250VAC or at 30 VDC Maximum contact voltage 250VAC or 30 VDC Maximum contact current5 A Maximum switching capacity1,250 VA, 150 W Mechanical life 10,000,000 operations Electrical life 50,000 operations at 5 A, 250VAC or 30 VDC Degree of protection Terminal section: IP20 Case materialPC and ABS WeightApprox. 150 g Operating power Isolated power supply2.0 VA/1.1 W max. at 24 VAC/DC, 4.6 VA max. at 100 to 240 VAC Operate (SV)Operating value setting range 10% to 100% of maximum measuring current Operating value 100% operation at set value Reset (HYS.) Hysteresis5% of operating value (fixed) Resetting method Manual reset/automatic reset (switchable) Manual reset: Turn OFF operating power for 1 s or longer Operating time (T)0.1 to 30 s Operating power ON lock (LOCK) 0 to 30 s (The startup lock timer starts when the input has reached approximately 30% or more of the set value.) Note: Enabled only for overcurrent operation Repeat errorOperating value ±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage, DC or 50/60 Hz sine wave input) Operating time ±50 ms (at 25°C and 65% humidity, rated power supply voltage) Input frequency range K8AK-AW1/-AW2DC input or AC input (45 to 65 Hz) K8AK-AW3AC input (45 to 65 Hz) Overload capacity K8AK-AW1/-AW2Continuous input at 120% of maximum input, 1 s at 150% K8AK-AW3Continuous input at 120%, 30 s at 200%, and 1 s at 600% with an OMRON CT (K8AC-CT200L) IndicatorsPower (PWR): GreenLED, relayoutput (RY): YellowLED, alarm outputs (ALM): Red LED Applicable standards Conforming standardsEN 60947-5-1 Installation environment (pollution level 2, installation category III) EMCEN 60947-5-1 Safety standards UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC Size in mm (H × W × D)90 × 22.5 × 100 642
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