21.610/1 RAK: Universal thermostat How energy efficiency is improved Demand-led controlling, monitoring and limiting, without auxiliary energy. Areas of application For controlling and monitoring the temperature of liquids in baths, tanks, pipelines and ducts. Thanks to modular design, can be used as controller, monitor, limiter or safety limiter. Features Classified as Cat. IV according to DGRL 97/23/EC <45 s time constant in water Thermostat with remote sensor Clamp-on thermostat Capillary-tube thermostat with and without protective tube Technical description Two-part housing made of plastic, lower part black, upper part yellow, including inspection window 0,8, 1 and 1,6 m capillary tube length Also for flue gas pipes As a temperature controller-monitor (TW); with LW 7 pocket, brass, 100 mm; as per DIN 3440 RAK 582.4/3773 5...30 4 800 68 200 RAK 582.4/3770 –10...50 4 1600 68 180 RAK 582.4/3728 15...95 4 800 68 200 RAK 582.4/3754 40...120 4 1600 68 200 RAK 582.4/3726 50...130 4 800 68 200 80...160 4 1600 68 200 RAK 582.4/3729 3) 5) 150...230 4 1000 68 280 RAK 582.4/3753 3) 5) As a safety temperature limiter (STB), classified in PED 97/23/EC as per Cat. IV; with LW 7 pocket, brass, 100 mm; as per DIN 3440; intrinsically safe; with mechanical lock. RAK 13.5050S 130/120/110/100/95 1) 20 800 68 170 As a temperature limiter (TB); with mechanical lock; with LW 7 pocket, brass, 100 mm; as per DIN 3440 RAK 584.4/3782 20...60 10 800 68 200 RAK 584.4/3783 50...130 10 800 68 220 As STB for exhaust pipes with sensor tube and pocket; as per DIN 3440; intrinsically safe; with lock RAK 574.4/3715 120/100/80 20 800 91 230 RAK 574.4/3720 160/140/120 20 800 91 240 RAK 574.4/3797 200/180/160 20 800 91 250 Max. contact rating 2) Terminal 1-2 TW, TB Terminal 11-12 STB Terminal 1-4 TW Min. contact rating Time constant in water without pocket with LW 7 pocket Calibration point TW, TB STB Influence of head temperature depends on type Weight Transport and storage temp. Permissible ambient temp. (housing) as clamp-on sensor (water temp.) 1) 2) 3) 4) 5) Type of protection Protection class DIN register number Not classified in the PED Classified in the PED 97/23/EG as per Cat. IV: Test marking 4) Wiring diagram Switching Capillary Sensor Max. temp. difference tube cartridge of sensor K mm mm °C Setting range Dimension drawing Fitting instructions Settings (via catches) are irreversible If under inductive load, take RC circuit into account. Pocket included; stainless-steel pockets should be used above 130 °C; see chapter 29, pocket LW 7 Niro Certificates can be downloaded from www.tuv.com Distance piece 100 mm for temperatures > 130 °C included Sauter Components

Accessories 0364433 001* Indicator lamp: 250 V~ for showing the switching status on the monitor 0364435 001 Assembly kit for clamp-on and double thermostat with 2 plugs for maintaining degree of protection IP 54, plus retaining strap for fitting to pipes of ½ “…3“ (for RAK as a clamp-on thermostat: T < 120 °C) As stem-type thermostat: (see chapter 29 for further details on pockets) 0364439 . . . LW 7 pockets; of brass; R½; for one sensor cartridge 0364440 . . . LW 15 pockets; of brass; R½, for 2-3 sensor cartridges 0210240 010* Distance piece 100 mm As thermostat with remote sensor: 0296724 000*...

Technical notes RC circuit under inductive load For the optimum RC circuit, see specifications supplied by the manufacturer of the contactors, relays etc. If, however, these are not available, the following rule of thumb (not binding) can be used to reduce the inductive load: Capacitance of the RC circuit (F) operating current (A) Resistance of the RC circuit () coil resistance () Wiring diagram Controller, monitor, limiter TR, TW Safety temperature limiter STB Dimension drawing Sauter Components

Sauter Components

Fitting methods When used as an STB as per PED, Cat. IV, please observe the notes at www.tuv.com ID: 0000006982 on fitting. Sauter Components Printed in Switzerland Right of amendment reserved N.B.: A comma between cardinal numbers denotes a decimal point © Fr. Sauter AG, CH-4016 Basle 7121610003 07