73 73 MECHANICAL THERMOSTAT FZK 011 >>Adjustable temperature >>High switching capacity >>Small hysteresis >>Change-over contact >>Clip fixing The mechanical thermostat is used for controlling heating and cooling equipment, filter fans or signal devices. The thermostat registers the surrounding air and can switch both inductive and resistive loads via snap-action contact. Functionality: The temperature setting on the scale equals to the upper switch point, which means that the NC contact opens. The temperature setting minus switch temperature difference (and tolerances) equals to the lower switch point, which means that the NC contact closes. TECHNICAL DATA Heater Filter fan, Cooling equipment, Signal device Switch temperature difference 5 K (-3/+2 K tolerance) Sensor element thermostatic bimetal Contact type change-over snap-action contact Service life > 100,000 cycles Min. switching capacity 10 mA Max. switching capacity, NC AC 250 V / AC 120 V, 10 (4) A DC 30 W Max. switching capacity, NO AC 250 V / AC 120 V, 5 (2) A DC 30 W Max. inrush current AC 16 A for 10 sec. Connection 4-pole terminal, clamping torque 0.5 Nm max.: rigid/stranded wire 2.5 mm (AWG 14) Mounting clip for 35 mm DIN rail, EN 60715 Casing plastic according to UL94 V-0, light grey Dimensions 67 x 50 x 38 mm Weight approx. 0.1 kg Fitting position variable Operating/Storage temperature -45 to +65 C (-49 to +149 F) Operating/Storage humidity max. 90 % RH (non-condensing) Protection type IP20 Approvals UL File No. E164104, EAC If the Normally Closed contact is used, the switch temperature difference could be reduced by connecting terminal "N" (RF heating resistor). It causes the thermal feedback which is subject to surrounding conditions and thus has to be determined for each individual application. When connecting with wires, wire end ferrules must be used. Connection diagram 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. Heater Art. No. Operating voltage Setting range 01170.0-00 AC 230 V +5 to +60 C 01170.0-01 AC 230 V +40 to +140 F 01170.0-02 AC 230 V -20 to +35 C 01170.9-00 AC 120 V +40 to +140 F 01170.9-01 AC 120 V +5 to +60 C Thermostat FZK 011 2 e.g. Filter fan for cooling L Thermostat FZK 011 3 e.g. Signal device L L N 3 L N Examples of connection Thermostat FZK 011 L L N 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. www.stego.de | www.stego.co.uk | www.stegonorden.se REGULATING STEGO - PRODUCT CATALOGUE TECHNICAL DATASHEET