SMA SUNNY BOY 7000-US - Page 45

SMA America, LLC Electrical Connection
SB50US-80US-IA-en-36 SB50US-80US-IA-en-36 45
10. Tighten the AC terminal blocks in the inverter with the following torques:
11. Check that all terminals have the correct wiring and that the cables are secure.
208 V and 240 V System Configuration
Do not connect the Sunny Boy 8000-US to a 208 V grid.
6. Connect the white cable of the DC disconnect to the
terminal labeled N. Connect the black cable of the
DC disconnect to the terminal labeled L1.
7. Connect the red insulated conductor to the terminal
labeled L2.
277 V System Configuration
8. Connect the white cable of the DC disconnect to the
terminal labeled N. Connect the black insulated
conductor of the DC disconnect to the terminal
labeled L1.
9. Connect the red insulated conductor to the terminal
labeled .
Gray terminal blocks (Weidmüller) 10 … 6 AWG: 18 in-lb. (2 Nm)
Green terminal blocks (Phoenix) 8 … 6 AWG: 40 in-lb. (4.5 Nm)
10 AWG: 2 in-lb. (2.5 Nm)
1 2 3 4
UNGROUNDED GROUNDED
L1 L2 N
2357 AB+-
GROUNDING
ELECTRODE
CONDUCTOR
COMBINED
2
4
0
V
2
7
7
V
2
0
8
V
L1
N
1 2 3 4
UNGROUNDED GROUNDED
L1 L2 N
2357 AB+-
GROUNDING
ELECTRODE
CONDUCTOR
COMBINED
2
4
0
V
2
7
7
V
2
0
8
V
L2
X
X
X
1 2 3 4
UNGROUNDEDUNGROUNDED GROUNDEDGROUNDED
L1 L2 N
2357 AB+-
GROUNDINGGROUNDING
ELECTRODEELECTRODE
CONDUCTORCONDUCTOR
COMBINEDCOMBINED
0
V
24
0
V
2
0
8
V
2
7
7
V
0
V
2
4
0
V
black