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  • DMO 1140-F/DMS 1141-F
  • DMO 1140-F/DMS 1141-F

Product Name:Small Compact Thermostat DMO 1140-F/DMS 1141-F

Product Model:DMO 1140-F/DMS 1141-F



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  • Parameters

Technical Data

DMO 1140-F/DMS 1141-F
Switch temperature difference+/-5℃
sensor elementthermostatic bimetal
Contact typesnap-action contact
service life 100000 cycles
Max.switching caoacity250VAC,10(2)A/ 120VAC,15(2)A
DC 30W at 24VDC to 72VDC
Max.inrush currentplastic according to UL94 V-0, light grey
Connection2-pole terminal,clamping torque 0.5Nm max.:rigid wire 2.5mm2(AWG 14)
stranded wire1 1.5mm2(AWG 16)
Mountingclip for 35mm DIN rail,EN 60715
Casingplastic according to UL94 V-0, light grey
Fitting Positionvariable
Operating/Stirage temperature-45 to +80℃(-49 to +176℉)
Operating/Stirage humiditymax.90% RH (non-condensing)
Protection typeIP20

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

Important note: The contact system of the regulator is subjected to environmental influences, thus the contact

resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.

Art.No.Contact breaker(NC)Art.No.Contact maker(NC)Signal current 
8600118600160 to +80℃
860012860017-10 to +50℃
860013860018+20 to +80℃
860014860019+32 to +140℉
860015860020+14 to +122℉

  • Features

• Large setting range

• Small size

• Simple to mount

• High switching performance

  • Structure Chart


  • Certification
  • Application

DMO 1140-F: Thermostat (normally closed); contact breaker for regulating heaters. The contact opens when temperature is rising.

DMS 1141-F: Thermostat (normally open); contact maker for regulating of filter fans and heat exchangers or for switching signal devises when temperature limit has been exceeded. The contact closes when temperature is rising.

  • Video

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