User guide
9-16 
Safety thermostats
http://products.ecc.emea.honeywell.com/europe
2
3
4
5
6
7
8
9
10
11
12
13
14
Sealing pipe thermostat with well.
For safety temperature control, and in addition high temperature shut-off functionality.
Accessories
Sealing pipe thermostat with well.
For safety temperature control, and in addition high temperature shut-off functionality.
Safety limiting thermostat with setpoint knob, shut-off (STBTR) 
Protection class IP54
Housing material Aluminium diecasting with plastic cover
Ambient temperature 0 ... 80
o
C
Switch function/capacity safety control switch SPDT 230 Vac, 10 A; shut-off temperature 
switch SPST 230 Vac, 10 A
Mechanical lock/reset shut-off mechanical lock, with hand reset on outside of 
thermostat
Immersion depth 150 mm
Certificates TUEV-approval TR / STB 90 001
Thermostat application immersion tube therm. + controller
Thermostat functions temp. setting inside + outside, reset outside
Temp. setpoint range 30 ... 110
o
C
Mounting place in pipe
Immersion well material red brass, nickel plated
Immersion well thread R1/2"
Max. perm. temp. at 
sensor
130
o
C
Additional description Safety control switching differential approx. 4% of setpoint value. 
Shut-off temperature: 30..110 
o
C adjustable.
Type
STB+TR
Steel well R1/2" x 150 mm
T5NST
Safety limiting thermostat with setpoint knob, shut-off, automatic reset (STWTR) 
Protection class IP54
Housing material Aluminium diecasting with plastic cover
Ambient temperature 0 ... 80
o
C
Switch function/capacity safety control switch SPDT 230 Vac, 10 A; shut-off temperature 
switch SPST 230 Vac, 10 A
Mechanical lock/reset shut-off mechanical lock, automatic reset
Immersion depth 150 mm
Certificates TUEV-approval TR / STW (STB)89 901 S
Thermostat application immersion tube therm. + controller
Thermostat functions temp. setting inside + outside, reset inside
Temp. setpoint range 20 ... 150
o
C










