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Connecting the control unit
Overview of electrical connections, junction box
1L1 3L2 5L3
2T1 4T2 6T3
M
400V~
100A
100
4
Fig. 27
Mains connection to Vitotronic control unit
fÖ
Fan motor
a-Ö
A PWM switching, fan motor
a-Ö
Mains connection, accessories to Vitotronic
aBH
control unit
Mains connection to main MCB/fuse
A
400 V/50 Hz
34
(cont.)
PE PE PE L1 L1 L2 L3 4
13
A1
14
A2
100A
L1
L2
400 V/50 Hz
L3
A
N
L1
L2 L3
N N N
40
156
N
L
L
N
Base I
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