Data Sheet for Product

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)EU Declaration of Conformity RAK-ST..

CE1N1204en

20-08-04

Smart Infrastru

cture

204

Safety Limit

Thermostats

RAK-ST..M

RAK-ST..M..

Electromechanical STB according to DIN EN

14597

• Safety temperature limitation, with single-pole changeover microswitch

• Switching capacity contact connection 11-12 16 (2.5) A, AC 250 V

Terminal for alarm contact connection 11-13 2 (0.4) A, AC 250 V

• Time constant conforming to DIN EN 14597

• 3 mounting choices: pipe, pocket or wall mounting

• Switch-off temperature can be checked through the viewing window in the

housing

• Compensation of ambient temperature at switching mechanism and capillary

tube

• Fail-safe design, rupture of the capillary tube causes contact connection 11-12

to open

• Internal reset facility covered by removable threaded nipple

• IP43 or IP54 protection class

• Push-in terminals for fast installation

Use

Typical applications:

• Fire protection thermostat in duct systems

• Heat generation plant

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

Function

When the limit temperature is reached on rising medium temperature, contact 11-12

changes over to contact 11-13 (alarm) and the limiter remains tripped in this position.

When the temperature of the medium falls by the value of the switching differential, the

safety limiter must be manually reset after removal of the threaded nipple.

Should the expansion liquid escape through a leak in the sensing system, the pressure

in the diaphragm drops, causing the contact connection to mechanically 11-12 off.

Summary of content (6 pages)

PAGE 1
Safety Limit Thermostats 204 RAK-ST..M RAK-ST..M.. Electromechanical STB according to DIN EN 14597 • Safety temperature limitation, with single-pole changeover microswitch • Switching capacity contact connection 11-12 16 (2.5) A, AC 250 V Terminal for alarm contact connection 11-13 2 (0.
PAGE 2
Type summary Product No. Stock number RAK-ST.1385M2) RAK-ST.1600MP2) Degree of Limit protection temperature S55700-P105 IP54 40...70 °C S55700-P107 IP54 95...130 °C 2) S55700-P100 IP43 95 °C RAK-ST.020FP-M2) S55700-P101 IP43 100 °C RAK-ST.030FP-M2) S55700-P102 IP43 110 °C 2) S55700-P104 IP43 90...110 °C RAK-ST.1300P-M2) S55700-P103 IP43 110...130 °C RAK-ST.010FP-M RAK-ST.1310P-M RAK-ST.1430S-M 2) S55700-P106 1) 2) 3) IP43 80...
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 switch-off temperature, (e.g. type RAKST.1300P-M) 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 Switching capacity Nominal voltage Nominal current I (IM) External fuse Life expectancy at nominal rating AC 24…250 V 0.1...16 (2.5) 2 (0.4) A (terminal for alarm) 16 A Min. 300switching cycles Estimated value for B10d B10d = 250‘000 (DIN EN ISO 13849-1) Safety class Degree of protection: I to EN 60 730 IP43 or IP54 to EN 60 529 contact 11-12 contact 11-13 Fixed switch-off temperature Directives and Standards RAK-ST.010FP-M RAK-ST.020FP-M RAK-ST.
PAGE 5
Calibration Calibration temperature Manufacturing deviation Drift after life expectancy Calibrated for ambient temperature at the switching mechanism and capillary tube RAK-ST.1385M RAK-ST.1600MP RAK-ST.010FP-M RAK-ST.020FP-M RAK-ST.030FP-M RAK-ST.1300P-M RAK-ST.1310P-M RAK-ST.1430S-M Time constant in: water oil air Connections Electrical connections Earth connection Cable gland External wiring flexible cord General data Housing colors Dimensions of sensing element Capillary tube length All types Min.
PAGE 6
Connection diagram E13: Alarm Dimensions Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Theilerstrasse 1a CH-6300 Zug Switzerland Tel. +41 58-724 24 24 www.siemens.