² When connecting with stranded wires, wire end ferrules must be used.
Art.No.
Setting Range
Operating Voltage
01220.0-00
35 to 95% RH
20VAC/DC, 250VAC
> Adjustable relative humidity
> Change-over contact
> High switching capacity
> Easily accessible terminals
> Clip fixing
The electromechanical hygrostat is designed to control enclosure heaters so that the dew point is raised when a critical relative humidity of 65% is exceeded. In this way condensation and corrosion in enclosures with electric/electronic components is effectively prevented.