Small Compact Thermostat
KTO 011 / KTS 011

  • Large setting range
  • Small size
  • Simple to mount
  • High switching performance

KTO 011: Thermostat (normally closed); contact breaker for regulating heaters. The contact opens when temperature is rising.

KTS  011: 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.

Technical Data

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Switch temperature difference7K (±4K tolerance)
Sensor elementthermostatic bimetal
Contact typesnap-action contact
Service life> 100,000 cycles
Max. switching capacity250VAC, 10 (2) A / 120VAC, 15 (2) A
DC 30W at 24VDC to 72VDC
Max. inrush currentAC 16A for 10 sec.
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
Dimensions60 x 33 x 43mm
Weightapprox. 40g
Fitting positionvariable
Operating/Storage temperature-45 to +80°C (-49 to +176°F)
Operating/Storage humiditymax. 90% RH (non-condensing)
Protection typeIP20

¹ When connecting with stranded 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.

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Setting rangeArt. No. Contact breaker (NC)Art. No. Contact maker (NO)Approvals
0 to +60°C01140.0-0001141.0-00VDE--EAC
-10 to +50°C01142.0-0001143.0-00VDEUL File No. E164102-EAC
+20 to +80°C01159.0-0001158.0-00VDEUL File No. E164102CSAEAC
+32 to +140°F01140.9-0001141.9-00VDEUL File No. E164102CSAEAC
+14 to +122°F01142.9-0001143.9-00VDEUL File No. E164102CSAEAC
0 to +60°C01146.9-0001147.9-00VDEUL File No. E164102CSAEAC

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Technical Drawing

Small Compact Thermostat KTO 011 / KTS 011 Series

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