SMA E-Panel installation manual
33 |
P a g e
1 0 - 2 3 4 - 1 R E V : A
SMA SYSTEM
WITH 2 CLASSIC CONTROLLERS
L2 OUT
L2 IN
NEUTRAL
N
EU
TR
A
L
N
EU
TR
A
L
INVERTER 2
SLAVE
SUNNY
ISLAND
250
ON
OFF
ON
OFF
60
A
BATTERY
NEGATIVE
BATTERY
POSITIVE
+
-
GROUND
ON
OFF
60
A
A
C
IN
P
U
T
A
C
O
U
TP
U
T
SPD
300
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
BATTERY 48 V
70
ON
ON
90
70
ON
ON
90
PV PLUS
BUS (S)
CLASSIC 150
CLASSIC 150
PV INPUT AND
CLASSIC OUTPUT
BREAKERS LOCATED
ON SIDE OF E-PANEL
BATTERY
PLUS BUS
PV ARRAYS
BATT
NEG
SPD
300
G
R
O
U
N
D
-P
E
G
R
O
U
N
D
-P
E
A
C
1
L
O
A
D
S /
S
U
N
N
Y B
O
YS
A
C
2
G
EN
/
G
R
ID
Input and output breakers
for the Classic
In from Solar Panels/Combiners
Or Wind/Hydro
Above: a slave unit with two Classics. Other wiring removed to show charge controller wiring.
Each Classic requires an input and an output breaker. Breakers are available from MidNite Solar in Dinrail
style up to 63 Amps / 150 Vdc and in panel mount up to 100 Amps / 300 Vdc.
Either type of breakers can be easily used in the E-Panel.
Below: Breaker locations for charge controllers or general use are shown. Din Rail and panel mount.
Negative connections from Classic go
to the negative busbar on the shunt
The Classics PV input comes
from the PV Plus Bus
The Classics battery output goes to
the Battery Plus Bus for single
Classic installations. For dual
Classics it is recommended to go
straight to the battery box to reduce
the effects of ripple.
Battery box. Required output
breaker not shown.
Din Rail breakers mount here
Panel mount breakers mount
here. There are six spaces for
panel mount breakers on the
this side.
Panel mount breakers mount
here. There are four spaces
for panel mount breakers on
this side.
