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68TECHNICAL 68 REGULATING DATASHEET www.stego.de | www.stego.co.uk | www.stegonorden.se PRODUCT CATALOGUE - STEGO SMALL COMPACT THERMOSTAT KTO 011 / KTS 011 >>Large setting range >>Small size >>Simple to mount >>High switching performance The mechanical thermostats KTO 011 and KTS 011 are two state regulators used to control heaters, coolers, filter fans or signal devices. KTS 011: 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 Connection diagrams Thermostat KTO 011 (NC) Thermostat KTS 011 (NO) Switch temperature difference 7 K (±4 K tolerance) Sensor element thermostatic bimetal Contact type snap-action contact Service life > 100,000 cycles Max. operating voltage AC 250 V (VDE) AC 120 V (UL) Max. inrush current AC 16 A for 10 sec. Connection 2-pole terminal, clamping torque 0.5 Nm max.: rigid wire 2.5 mm² (AWG 14) stranded wire1 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 43 mm Weight approx. 40 g Fitting position variable Operating/Storage temperature -45 to +80 °C (-49 to +176 °F) Operating/Storage humidity max. 90 % RH (non-condensing) Protection type IP20 ¹ 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. Thermostat KTO 011 (NC) Heater Thermostat KTS 011 (NO) e.g. Fan Thermostat KTS 011 (NO) e.g. Signal device Examples of connection Heater Filter fan, Cooling equipment, Signal device L N Art. No. Contact maker (NO) L N L N Setting range Art. No. Contact breaker (NC) Switching current/capacity max. AC 250 V AC 120 V DC 24 - 72 V Approvals 0 to +60 °C 01140.0-00 01141.0-00 10 (2) A 15 (2) A 30 W VDE - - EAC -10 to +50 °C 01142.0-00 01143.0-00 10 (2) A 15 (2) A 30 W VDE UL File No. E164102 - EAC +20 to +80 °C 01159.0-00 01158.0-00 3 (2) A 3 (2) A 30 W VDE UL File No. E164102 CSA EAC +32 to +140 °F 01140.9-00 01141.9-00 10 (2) A 15 (2) A 30 W VDE UL File No. E164102 CSA EAC +14 to +122 °F 01142.9-00 01143.9-00 10 (2) A 15 (2) A 30 W VDE UL File No. E164102 CSA EAC 0 to +60 °C 01146.9-00 01147.9-00 10 (2) A 15 (2) A 30 W VDE UL File No. E164102 CSA EAC 19.03.2019 | Specifications are subject to change without notice. Errors and omissions excepted. Suitability of this product for its intended use and any associated risks must be determined by the end customer/buyer in its final application. KTO 011: Thermostat (NC); contact breaker for regulating heaters. The contact opens when temperature is rising.