Relay Modules
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324
With supply via C-rail and cross-connected root:
Supply via C-rail (-)
‚Max.. 8 relay modules (+)
Fig. 233: Wiring diagram BL20-S4x-SBCS
C-rail
‚cross-connection via jumper in the base module
Fig. 234: Block diagram BL20-S4x-SBCS
WARNING
Dangerous electrical voltage
Acute danger to life due to electric shock!
† It is only permitted to load the C-rail with a maximum of 24 V, not with 230 V!
NOTE
Contact designations used for base modules are not designations of relay contacts
according to DIN.
............
242424
2323
23
222222
212121
141414
1313
13
121212
111111
–
+
Relais 1 Relais nPower
Feeding
24 V DC
a
b
R1
R2
a
b
24 V DC
Ö
0
W
0
11
14
21
24
Ö
1
W
1
23
R2
13
R1
Elektronik-
modul
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