Installation and Operating Manual / Version 7 / 3626-019600ex
en / Protection class
0: public / 2020-07-15
BTS-Ex, non-contacting thermal switch unit
3 Technical Data
3.1 Switching element
Fig. 2
The following switching elements are available for the different turbo coupling sizes:
Dimension of thread M18x1.5 M24x1.5
Nominal response temperature
85 / 90 / 100 / 110 /
125 / 140 /160 / 180 °C
85 / 125 / 140 /
160 / 180 °C
suitable for coupling size 366 – 650 750 – 1150
Response tolerance ± 5 °C
Trip temperature approx. 40 K below the response temperature
Width across flats 27 32
Tightening torque 60 Nm 144 Nm
Ui = 10 V Ii = 50 mA Pi = 50 mW
Service temperature in the coil
area
-40 °C to +120 °C
Service temperature in the
area of the thermostatic switch
to 90 °C (T5), to 125 °C (T4), to 190 °C (T3)
Table 1
The type of switching element is stamped in on the housing indicating:
- Voith
- Nominal response temperature
- Ex marking II Ex i X
- Serial number (example: Voith 140 °C II Ex i X 1234 5678)
The nominal response temperature of the switching element is determined in
connection with the the coupling design.