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The mechanical thermostats KTO 111 and KTS 111 are two state regulators for use up to 5,000 meters in altitude, thanks to optimised air gap and increased creepage distance. The conductor can easily be connected via Push-In clamps without tools.

KTO 111: Thermostat (NC); contact breaker for regulating heaters. The contact opens when temperature is rising.
KTS 111: Thermostat (NO); 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.
Unit of Measure

Specifications

Contact Type

 N/A
NO / close on rise

Setting Range

 N/A +14 to +122 °F

Max. Switching Capacity

 N/A 10 (2) A

Approvals

 N/A VDE, UL File No. E164102, EAC

Technical Data

Switch Temperature Difference

 N/A 7 K (±4 K tolerance)

Sensor Element

 N/A thermostatic bimetal

Service LIfe

 N/A 100,000 cycles verified

Max. Operating Voltage, Frequency Range

 N/A AC 250 V, 50-60 Hz

Max. Inrush Current

 N/A AC 16 A for 10 sec.
Connection1 N/A 2 Push-In clamps
rigid wire 2.5 mm2 (AWG 14)
stranded wire1 1.5 mm2 (AWG 16)

Mounting

 N/A Clip for 35 mm DIN rail, EN 60715

Casing

 N/A plastic according to UL94 V-0, light grey

Dimensions

 N/A 60 x 33 x 41 mm

Weight

 N/A approx. 40 g

Fitting Position

 N/A variable

Operating/Storage Temperature

 N/A -49 to +176 ºF-45 to +80 ºC

Operating/Storage Humidity

 N/A max. 90 % RH (non-condensing)

Protection Type/Protection Class

 N/A IP20 / II

Overvoltage Category/Altitude

 N/A II: up to 5,000 m; III: up to 2,000 m

Important note

 N/A change. This can lead to a voltage drop and/or self-heating of the contacts.
  • 1 Stripped length of rigid wire: 10 to 12 mm. When connecting with wires, wire end ferrules must be used (square or trapezoid