Siemens 3WX3666-7JA00 - Block Diagram

6
Block Diagram
Wiring
The wiring of terminal block X1 is shown in the following diagram:
Notes • Ensure that the phase sequence of the feeders is correct.
• Use 10 A Diazed fuses for the feeders.
• Additional enable is possible via external switch on terminals 7 and 8 for switch-on of normal
mains supply. Remove the plug-in jumper in this case.
• Additional enable is possible via external switch on terminals 20 and 21 for switch-on of emer-
gency supply, e.g. for enable signal following generator start-up. Remove the plug-in jumper in
this case. Generator startup must be completed before giving switchover clearance.
G
10 A
3
3WX3666-7JA00
(L1, L2, L3)N
Auxiliary supply
Load
Normal supply QN
Generator QG
3 WN6 (QN)
3 WN6 (QG)
3
(L1, L2, L3)
10 A
X100, X200
X100, X200
Terminal block X1
connections
Auxiliary supply
connections
e
X100.9, X100.12, X200.2
X200.13
X100.8, X200.6
N
4
5
X200.7
X100.11
6
7
8
X200.8
X200.14
X200.3
9
10
11
X200.9
X200.12
12
13
L1
L2
L3
N
1
2
3
N
X100.9, X100.12, X200.2
X200.13
X100.8, X200.6
N
17
18
X200.7
X100.11
19
20
21
X200.8
X200.14
X200.3
22
23
24
X200.9
X200.12
25
26
L1
L2
L3
14
15
16
Terminal block X1
QN
QG