User Manual

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)Frost Protection Thermostat RAK-TW.5..H

CE1N1203en

2018

-03-23

Building Technologies

203

Frost Protection

Thermostat

RAK-TW.5..H

RAK-TW.5..H..

Electromechanical thermal reset limit thermostat

• Monitoring of frost protection temperature, with single-pole changeover

microswitch

• Switching capacity: contact connection 1-2: 16 (2.5) A, AC 250 V

contact connection 1-3: 6 (2.5) A, AC 250 V

• Time constant conforming to DIN EN 14597

• 3 mounting choices: pipe, air duct (with perforated pocket) or wall mounting

• Adjusted limit temperature can be checked through the viewing window in the

housing

• IP43 und IP65 protection class available

• Push-in terminals for fast installation

Use

Typical applications:

• Heat generation plant

• For general use in heating, ventilation and air conditioning plant

• Frost protection

Summary of content (6 pages)

PAGE 1
203 Frost Protection Thermostat RAK-TW.5..H RAK-TW.5..H.. Electromechanical thermal reset limit thermostat Use • Monitoring of frost protection temperature, with single-pole changeover microswitch • Switching capacity: contact connection 1-2: 16 (2.5) A, AC 250 V contact connection 1-3: 6 (2.
PAGE 2
Function Changeover switch (S.P.D.T.) When the adjusted limit temperature is reached on falling temperature (frost protection function), contact connection 1-3 changes over to contact connection 1-2. When the temperature of the medium rises by the value of the switching differential, the frost protection thermostat reverts to contact connection 1-3. If the probe has cooled down to a temperature below approx.
PAGE 3
Notes Mounting aid Installation Instructions are enclosed in the package. Mounting location It must be ensured that there is sufficient clearance above the thermostat for seeing through the viewing window, for adjusting the limit temperature and for removing and replacing the thermostat, if required. Pipe mounting The clamping band should be properly tightened to ensure the entire length of the sensing element is in close contact with the pipe’s surface.
PAGE 4
Technical data Switching mechanism Directives and Standards Switching capacity Nominal voltage Nominal current I (IM) contact connection 1-2 contact connection 1-3 External fuse Life expectancy at nominal rating Safety class Degree of protection: Temperature setting range RAK-TW.5000HS RAK-TW.5000S-H RAK-TW.5010S-H Thermal switching differential Product standard AC 24…250 V 0.1...16 (2.5) A 0.1… 6 (2.5) A 16 A min. 100 000 switching cycles I to EN 60 730 IP43 and IP65 to EN 60 529 (with tool) 5...
PAGE 5
General data Housing colors Dimensions of sensing element Capillary length Min. bending radius of capillary Construction Carrier of switching mechanism Capillary tube and sensing element Diaphragm Weight of standard set base RAL 7001 (dark-grey) cover RAL 7035 (light-grey) 6.5 mm dia. x 78 mm 1 600 mm R min. = 5 mm plastic copper stainless steel 0.35 kg 1) The documents can be downloaded from http://siemens.com/bt/download.
PAGE 6
<ϑ 1 L1 N 1188A01 Connection diagram 3 2 E E 3 2 For frost protection function, contact connection 1 – 2 closes Dimensions 156 131 55 52 200 57 64 1188M01 200 Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Theilerstrasse 1a 6300 Zug Switzerland Tel. +41 58-724 24 24 www.siemens.