Receives water level signals sent from an electrode and submerged electrode, and operates the inner relay and controls a pump when the water reaches a specified level

Basic Characteristics

Product summary

Fluid level control

Product purpose

Compatible with our electrode retainers and submerged electrodes

Intended use

Control liquid level of a water tank or elevated tank

Operating type

The control circuit receives the current of an electrode detected at an electrode retainer and turns the relay on or off.

Compatible standard


Mechanical Characteristics

Outer dimensions


Case material

Case: ABS

Operating temperature range


Connection terminal type

Terminal block (M4)

Product mounting method

φ4 to φ6 hole (pitch: 113 × 64 mm)

Electrical Characteristics

Rated voltage

AC 100/200V

Rated capacity


Contact withstand current


Contact withstand count

50,000 times or more

Withstand voltage

1500 VAC for 1 minute or 1800 VAC for 1 second

Insulation resistance

500 VDC megohmmeter
10 MΩ or higher

Characteristics Unique to This Product

  • Operating resistance 1.5k to 5k Ω Open resistance 5k to 30k Ω