24
“Operation and installation manual”
EN
3.6 Working principles
3.6.1 Terra xx4 variants CC, CJ, NC, and NN
Ref. Description
A
Main fuse
B
AC contactor
C
Residual current device
D
Power module matrix
E
30kW power module
F
DC Filter
G
DC relay
H
DC fuse
I
Overcurrent board
J
EV
K
CPI board
L
IMI board
M
Interlink contactor
N
AC SPD
O
Breaker
P
Auxiliary transformer
Q
Auxiliary breaker
R
Heater
S
Power supply unit
T
DC EMC filter
U
DC cooling fans
V
CCB board
W
HMI
X
Power bridge board
Power connection
Black and thin lines: auxiliary
power connection.
CAN bus.
Control signal or monitoring
signal.
NOTE
For Terra 94, the second array of three power modules is empty and it can perform only one DC
charge session.
A
C
C
F
F
D
I
J
L
K
M
N
O
P
Q
R
S
V
W
X
T
U
U
H
G
B
E
E
E
E
E
E
I
J
L
K
H
G