Small Thermostat
KTO 011 / KTS 011

  • Compact design
  • Wide adjustment range
  • Color coded temperature dials
  • DIN rail mountable

The mechanical thermostats KTO 011 and KTS 011 are two state regulators used to control heaters, coolers, filter fans or signal devices.

Thermostat (NC): Thermostat opens on temperature rise - for regulating heaters or for switching signal devices. Comes with red temperature dial.

Thermostat (NO): Thermostat closes on temperature rise - for regulating filter fans and heat exchangers or for switching signal devices. Comes with blue temperature dial.

Switching difference12.6 °F ± 7 °F tolerance (7 K ± 4 K)
Sensor elementthermostatic bimetal
Contact typesnap-action contact
Service life> 100,000 cycles
Max. operating voltageAC 120 V (UL)
AC 250 V (VDE)
Max. inrush currentAC 16 A for 10 sec.
Connection2-pole terminal, clamping torque 0.5 Nm max.:
solid wire - AWG 14 max. (2.5 mm²)
stranded wire1 - AWG 16 max. (1.5 mm²)
Housingplastic, UL 94V-0, light grey
Mountingclip for 35 mm DIN rail, EN 60715
Mounting positionvariable
Dimensions2.4 x 1.3 x 1.7” (60 x 33 x 43 mm)
Weightapprox. 1.4 oz. (40 g)
Operating / Storage temperature-49 to +176 °F (-45 to +80 °C)
Operating / Storage humiditymax. 90 %RH (non-condensing)
Protection typeIP20

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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 rangePart No. (NC)Part No. (NO)     Switching current / capacity max.                    Approvals
AC 120 VAC 230 VDC 24-72 V
+32 to +140 °F01140.9-0001141.9-0015 (2) A10 (2) A30 WUL File No. E164102VDECSAEAC
+14 to +122 °F01142.9-0001143.9-0015 (2) A10 (2) A30 WUL File No. E164102VDECSAEAC
0 to +60 °C01146.9-0001147.9-0015 (2) A10 (2) A30 WUL File No. E164102VDECSAEAC
-10 to +50 °C01142.0-0001143.0-0015 (2) A10 (2) A30 WUL File No. E164102VDE  -EAC
+20 to +80 °C01159.0-0001158.0-003 (2) A3 (2) A30 WUL File No. E164102VDECSAEAC

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Dimensioned Drawing

Small Thermostat KT 011 / KTS 011

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