
Expansion units for SecuriFire 2000
Mounting and installation, Technical Description, T 811 086 en e
49 / 128
6.15
Connecting Hochiki Ex-i detectors in Ex areas
V
D
S
H
X
B6-EIO
X2/X3
1
10
Equipotential
bonding
1
5
4
1 2
5
4
Ex area
Ex-Barrier
Pepperl & Fuchs
Type: Z487/Ex
4K7
4K7
2
4
13
11
21
23
1
5
4
1
5
4
YBN-R/4IS
1 2
5
4
Ex area
Ex-Barrier
Pepperl & Fuchs
Type: Z487/Ex
8
YBN-R/4IS
YBN-R/4IS
YBN-R/4IS
6
6
6
6
Fig. 62 Connecting Hochiki Ex-i detectors in Ex areas