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  • NT 84-F

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  • Parametri
NT 84-F
Operating VoltageAll AC/DC Voltage
Switch difference¹+/-5% RH
Permissible air velocity15m/sec.
Contact typechange-over contact
Service life>50,000 cycles
Min. switching capacity20VAC / DC 100mA
Max. switching capacity250VAC, 5A / DC 20W
Connection3-pole terminal for 2.5mm², clamping torque 0.5Nm max.: rigid wire 2.5mm²
(AWG 14); stranded wire² 1.5mm² (AWG 16)
Mountingclip for 35mm DIN rail, EN 60715
Casingplastic according to UL94 V-0, light grey
Dimensions67×50×38mm
Weightapprox. 60g
Fitting positionvariable
Operating/Storage temperature0 to +60°C (+32 to +140°F) / -40 to +60°C (-40 to +140°F)
Operating/Storage humiditymax. 95% RH (non-condensing)
Protection typeIP20

¹ at 50% RH

² When connecting with stranded wires, wire end ferrules must be used.


Art. No.Setting RangeOperating Voltage
84HF 35 to 95% RH20VAC/DC, 250VAC


  • Caratteristiche

• Adjustable relative humidity

• Change-over contact

• High switching capacity

• Easily accessible terminals

• Clip fixing


  • Grafico della struttura

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  • Applicazione

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.


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