Accessories Controllers

PH763.422.2211

nVent.com/HoFFmAn

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APPlicATion

TheMechanicalHygrostatcontrolsrelativeairhumidityinsidean

enclosuretopreventcondensationandcorrosionthatcandamage

components.Itcanalsobeconnectedtoanenclosureheater,

coolingfans,warninglightsorotherdevices.

Thecriticalrelativehumidity(RH)levelformostcomponentsis65

percent.Above65percentRH,condensationcanformandcause

electricalequipmenttomalfunction.

FeATUres

•

Adjustablerelativehumidityrange

•

Highswitchingcapacity

•

Longservicelife(>100,000cycles)

•

Maximumpermissibleairvelocityof50ft./sec.(15m/s)

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Maximumswitchingvoltage=250VAC

250Vshouldbeswitchedonlyinanon-condensingenvironment

•

Change-overcontact

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Mountingclipfor35-mmDINrail

•

Connection:3-poleterminalforAWG14max.(2.5-mmsquared)

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Contactresistancelessthan10mΩ

Finish

•

Light-grayplastic,UL94V-0

PerformanceData MechanicalHygrostat

CATALOG NUMBERS

AMHUM

ELECTRICAL DATA

Switching Capacity (Minimum)

100mA @ AC/DC 20 V

Switching Capacity (Maximum)

5A @ AC 250 V (resistive load)

0.2A @ AC 250 V (inductive load at cos O = 0.8)

DC 20W

Operating Temperature Adjustable) (°F/°C)

32/0 to 140/60

Storage Temperature (°F/°C)

-40/-40 to 140/60

UNIT CONSTRUCTION

Unit Dimensions - H x W x D (in./mm)

2.64 x 1.97 x 1.50/67 x 50 x 38

Weight (oz/g)

2.00/60