SMA E-Panel installation manual
27 |
P a g e
1 0 - 2 3 4 - 1 R E V : A
MN-SMARB
B-NC
B-NO
B-COM
A-NC
A-NO
A-COM
A
C
IN
L
1
A
C
IN
L
2
A
C
O
U
T
L1
G
T
IN
L
1
G
T
IN
L
2
RELAY
COIL
N
O
N
C
C
O
M
C
O
M
NC
C
O
M
NC
NO
NO
A
C
O
U
T
L2
MIDNITE SOLAR
SMA SUNNY ISLAND DUAL STACK WITH SUNNY BOY AC COUPLING
AND GENERATOR BACK UP- SMARB AUTO TRANSFER SWITCH WIRING
DRAWN BY T.
CARPENTER
05/02/13
L2
OUT
L2
IN
N
EU
TR
A
L
N
EU
TR
A
L
N
EU
TR
A
L
INVERTER
2
SUNNY
ISLAND
SLAVE
250
ON
OFF
ON
OFF
60
A
BATTERY
NEGATIVE
BATTERY
POSITIVE
+
-
GROUND
L1 OUT
L1 IN
L2 OUT
L2 IN
NEUTRAL
N
EU
TR
A
L
N
EU
TR
A
L
INVERTER 1
SUNNY
ISLAND
MASTER
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
250
ON
OFF
ON
OFF
60
A
SPD
300
SPD
300
BATTERY
NEGATIVE
BATTERY
POSITIVE
+
-
GROUND
ON
OFF
60
A
ON
OFF
60
A
A
C
IN
P
U
T
A
C
IN
P
U
T
A
C
O
U
TP
U
T
A
C
O
U
TP
U
T
ON
OFF
ON
OFF
60
60
ON
OFF
ON
OFF
60
60
L2 OUT
FROM
INV 2
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
O
N
O
FF
BACKED UP LOADS
SUB PANEL
SUNNY BOY
SUNNY BOY
SUNNY BOY
“THE GRID”
NOTE: EXTERNAL COMPONENT
GROUNDS AND NEUTRALS
OMITTED FOR CLARITY
TAKE IT ON FAITH THAT THEY
ARE ALL PROPERLY CONNECTED
G
R
O
U
N
D
-P
E
A
C
2
G
EN
/
G
R
ID
A
C
1
L
O
A
D
S /
S
U
N
N
Y B
O
YS
G
R
O
U
N
D
-P
E
G
R
O
U
N
D
-P
E
6V
400a
h
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
6V
400ah
BATTERY 48 V
GENERATOR
120/240 VAC
DIG IN
COM
SYNCH
OUT
COM
SYNCH
IN
Typical complete dual AC coupled system. With an MNE250SMA-OG/AC DM. an MNE250SMA-
SLAVE and two Classic charge controllers.
Parts sold separately.
