Mechanical thermostat KTO 111 / KTS 111

DIN railACplastic

The mechanical thermostats KTO 111 and KTS 111 are two state regulators for use up to 5,000 meters in altitude, thanks to optimized air gap and increased creepage distance. By use of Push-In terminals the thermostat is wired tool-free. The Push-In terminals provide constant pressure on the wires to prevent them from coming loose (e.g. during transport). 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. Technical Data Switch temperature difference: 7 K (±4 K tolerance) Sensor element: thermostatic bimetal Contact type: snap-action contact Service life: 100,000 cycles verified Max. operating voltage, frequency range: AC 250 V, 50-60 Hz Connection¹: 2 Push-In clamps, rigid wire 2.5 mm² (AWG 14), stranded wire 1.5 mm² (AWG 16) Mounting: clip for 35 mm DIN rail, EN 60715 Casing: plastic according to UL94 V-0, light grey Dimensions: 60 x 33 x 41 mm Weight: approx. 40 g Fitting position: variable Operating/Storage humidity: max. 90 % RH (non-condensing) Protection type/Protection class: IP20 / II Overvoltage category/Altitude: II: up to 5,000 m; III: up to 2,000 m Approvals: VDE, UL File No. E164102, EAC ¹Stripped length of rigid wire: 10 to 12 mm. When connecting with wires, wire end ferrules must be used (square or trapezoid crimp). Length of wire end ferrule: 10 mm or 12 mm.