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Ambient operating temperature
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-20 to 60°C (with no condensation or icing)
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Storage temperature
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-25 to 65°C (with no condensation or icing)
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Operating voltage range
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85% to 110% of rated operating voltage
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Rated power supply frequency
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50/60 Hz±5 Hz (AC power supply)
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Output relays
(1 × SPDT, normally closed operation)
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Resistive load
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5 A at 250 VAC or at 30 VDC
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Maximum contact voltage
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250 VAC or 30 VDC
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Maximum contact current
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5 A
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Maximum switching capacity
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1,250 VA, 150 W
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Mechanical life
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10,000,000 operations
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Electrical life
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50,000 operations at 5 A, 250 VAC or 30 VDC
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Degree of protection
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Terminal section: IP20
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Case material
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PC and ABS
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Weight
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Approx. 150 g
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Operating power
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Isolated power supply
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2.0 VA/1.1 W max. at 24 VAC/DC, 4.6 VA max. at 100 to 240 VAC
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Operate (SV)
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Operating value setting range
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10% to 100% of maximum measuring current
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Operating value
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100% operation at set value
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Reset (HYS.)
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Hysteresis
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5% of operating value (fixed)
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Resetting method
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Manual reset/automatic reset (switchable)
Manual reset: Turn OFF operating power for 1 s or longer
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Operating time (T)
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0.1 to 30 s
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Operating power ON lock (LOCK)
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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
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Repeat error
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Operating value
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±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage, DC or 50/60 Hz sine wave input)
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Operating time
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±50 ms (at 25°C and 65% humidity, rated power supply voltage)
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Input frequency range
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K8AK-AW1/-AW2
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DC input or AC input (45 to 65 Hz)
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K8AK-AW3
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AC input (45 to 65 Hz)
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Overload capacity
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K8AK-AW1/-AW2
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Continuous input at 120% of maximum input, 1 s at 150%
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K8AK-AW3
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Continuous input at 120%, 30 s at 200%, and 1 s at 600% with an OMRON CT (K8AC-CT200L)
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Indicators
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Power (PWR): Green LED, relay output (RY): Yellow LED, alarm outputs (ALM): Red LED
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Applicable standards
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Conforming standards
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EN 60947-5-1
Installation environment (pollution level 2, installation category III)
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EMC
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EN 60947-5-1
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Safety standards
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UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC
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Size in mm (H × W × D)
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90 × 22.5 × 100
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