Mechanical Thermostat FZK 011 Series Adjustable temperature High switching capacity Small hysteresis Terminals easily accessible Change-over contact 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. Due to the integrated thermal feedback the switch temperature difference could be reduced.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. Regulating Clip fixing Switch temperature difference 5K (-3/+2K tolerance)* Sensor element thermostatic bimetal Contact type change-over snap-action contact Service life > 100,000 cycles Min. switching capacity 10mA Max. switching capacity, NC 250VAC, 10 (4) A 120VAC, 10 (4) A 30WDC Max. switching capacity, NO 250VAC, 5 (2) A 120VAC, 5 (2) A 30WDC Max. inrush current 16AAC for 10 sec. Connection 4-pole terminal, clamping torque 0.5Nm max.: rigid wire 2.5mm stranded wire (with wire end ferrule) 1.5mm Mounting clip for 35mm DIN rail, EN 60715 Casing plastic according to UL94 V-0, light grey Dimensions 67 x 50 x 38mm Enclosure heater Weight approx. 0.1kg Filter fan, Cooling equipment, Signal device Fitting position variable Operating / Storage temperature -45 to +65C (-49 to +149F) Operating / Storage humidity max. 90% RH (non-condensing) Protection type IP20 Approvals UL File No. E164102 *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. Connection diagram Heater Thermostat FZK 011 e.g. Filter fan for cooling Thermostat FZK 011 e.g. Signal device Thermostat FZK 011 Examples of connection Art. No. 01170.0-00 01170.0-01 01170.0-02 01170.9-00 01170.9-01 Operating voltage 230VAC 230VAC 230VAC 120VAC 120VAC Setting range +5 to +60C +40 to +140F -20 to +35C +40 to +140F +5 to +60C ++ STEGO UK Ltd. + Unit 12, First Quarter Business Park + Blenheim Road + Epsom, Surrey KT19 9QN + England + info@stego.co.uk + www.stego.co.uk ++ 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. 02.05.2011 Technical Data