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K8AK-LS

Conductive Level Controller

K8AK-LS

Ideal for Liquid Level Control in Industrial Facilities and Equipment.

Ratings

Power supply voltage 24 VAC 50/60 Hz or 24 VDC
100 to 240 VAC 50/60 Hz
Voltage across elec-trodes 5 V p-p (Approx. 20 Hz)
Power consumption 24 VAC/DC: 2.0 VA/1.1 W max.
100 to 240 VAC: 4.6 VA max.
Operating resistance 10 k to 100 kΩ (variable)
Reset resistance 250 kΩ max.
Response time Approx. 0.1 to 10 s (variable)
Length of cable 100 m max. (fully insulated 3-core 0.75-mm2 cab-tyre cable, 600 V)
Indicators PWR: Green, RY: Yellow
Output contact 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/30 VDC: 100,000 operations
Ambient operating tem-perature -20 to 60°C (with no condensation or icing)
Storage temperature -25 to 65°C (with no condensation or icing)
Ambient 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
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 × D × H)

Specifications

Operating voltage range 85% to 110% of rated voltage
Installation environ-ment Installation category II, pollution level 2
Approved standards EN 61010-1
EMC EN 61326-1 Industrial electromagnetic environment
Safety standards UL 508 (Recognition), Korean Radio Waves Act (Act 10564),
CSA: C22.2 No.14, CCC: GB14048.5
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 termi-nals
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 termi-nals
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