• Adjustable switch-on and switch-off delay
  • Clearly visible LEDs for indicating operation, input, output and release
  • Protection of a tank against overspill or dry run
  • For the reliable wear protection of pumps and valves
  • Quick and time-saving rail mounting
  • Description
  • Reviews (0)


Application Protection of a tank against overspill or dry run
Electrical data
Operating voltage tolerance 2 [%] > 20
Nominal voltage AC [V] 110…240
Nominal voltage DC [V] 27
Nominal voltage tolerance [%] > 20
Nominal voltage tolerance 2 [%] 20…10
Nominal frequency AC [Hz] 50…60
Insulation rating [V] 9
Max. power consumption AC [W] 6
Max. power consumption DC [W] 4
Auxiliary energy for sensors DC [V] 18.5…30; (SELV, ≤ 100 mA)
Inputs / outputs
Number of inputs and outputs Number of digital outputs: 1; Number of relay outputs: 1
Number of digital outputs 1
Number of relay outputs 1
Contact rating 4 A (240 V AC, 24 V DC); (ohmic resistance)
Short-circuit proof yes
Operating conditions
Ambient temperature [°C] -25…60
Storage temperature [°C] -25…70
Max. relative air humidity [%] 80; (40 °C: 50 % non condensing)
Max. height above sea level [m] 2000
Protection IP 20
Protection rating terminals IP 20
Degree of soiling 2; (≤ 240 V AC)
Tests / approvals
MTTF [years] 224
UL approval
UL Approval no. N001
Mechanical data
Weight [g] 242.5
Housing housing for DIN rail mounting
Type of mounting rail; (TH35 EN 60715)
Materials plastics: PC-GF20
Displays / operating elements
voltage supply 1, green
input 1, yellow
Output 1, green
enable signal 1, yellow
Accessories (supplied)
connector: 5 x 4-wire, with screw connection, E40173
Electrical connection
Connection pin headers: 4 x ; Spacing: 5.0 mm


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