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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.
Technical Data
NT 74-F | |
Switch temperature difference | +/-5% RH |
sensor element | 15m/sec |
Contact type | change-over contact |
service life | >50,000 cycles |
Max.switching caoacity | 20VAC,DC100mA |
Max. switching capacity | 250VAC,5A/DC20W |
Connection | 3-pole terminal for 2.5mm², clamping torque 0.5Nm max.: rigid wire 2.5mm² (AWG 14);stranded wire² 1.5mm² (AWG 16) |
Mounting | clip for 35mm DIN rail, EN 60715 |
Casing | plastic according to UL94 V-0, light grey |
Dimensions | 67x50x38mm |
Weight | approx.60g |
Fitting Position | variable |
Operating/Stirage temperature | 0 to +60℃(+32 to +140℉)/-40 to +60℃(-40 to +140℉) |
Operating/Stirage humidity | max.95% RH (non-condensing) |
Protection type | IP20 |
¹ at 50% RH
² When connecting with stranded wires, wire end ferrules must be used.
Art.No. | Setting Range | Operating Voltage |
860049 | 35 to 95%RH | 20AC/DC,250VAC |
