3.7.2.7
Versions -XX-BF3
3.7.2.7.1 1-wire with spring return constant spring return period BF3
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.
70: SB7.4 - cable type 9+PE, cable diameter 8.8mm
3 | Device description
56
Translation of the original installation guide · Version 1.0 · 2021-05-27