3.7.2.4.2 3-point with spring return with constant spring return period BF
Integrated auxiliary switch,
fuse on power supply side recommended
24...240 VAC/DC
~
~
–
+
PE
1
2
3
4
PA
5
6
7
8
9
10
< 5°
> 85°
U < 90 V AC/DC
U > 90 V AC/DC
2 A 10 A, slow
5 A 10 A, slow
min. max.
1
2
Ex i trip
circuit
for ExPro-TT-...
Safety
temperature
trigger
ExPro-TT
°C
Test
button
11
Fig.
64: SB7.3 - cable type 10+PE, cable diameter 9.4
mm
For explanation of the function of switches "a" and "b" see:
3.7.2.5
Versions -XX-F3
3.7.2.5.1 1-wire with spring return constant spring return period F3
For 1-wire control, the
heating is not active if
contact is broken.
Caution!
24...240 VAC/DC
~
~
–
+
PE
1
2
3
PA
Fig.
65: SB2.5 - cable type 3+PE, cable diameter 6
mm
3 | Device description
Translation of the original installation guide · Version 1.0 · 2021-05-27
53