SMA SUNNY BOY 5000-US Installation Manual page 45

SMA America, LLC
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 .
10. Tighten the AC terminal blocks in the inverter with the following torques:
Gray terminal blocks (Weidmüller)
Green terminal blocks (Phoenix)
11. Check that all terminals have the correct wiring and that the cables are secure.
SB50US-80US-IA-en-36
N
L1
X
X
X
L2
black
10 ... 6 AWG: 18 in-lb. (2 Nm)
8 ... 6 AWG: 40 in-lb. (4.5 Nm)
10 AWG: 2 in-lb. (2.5 Nm)
SB50US-80US-IA-en-36
Electrical Connection
2 3 5 7 A B + -
GROUNDING
ELECTRODE
CONDUCTOR
1 2 3 4
UNGROUNDED GROUNDED L1 L2 N
2 3 5 7 A B + -
GROUNDING
ELECTRODE
CONDUCTOR
1 2 3 4
UNGROUNDED GROUNDED L1 L2 N
2 3 5 7 A B + -
ELECTRODE GROUNDING ELECTRODE GROUNDING
CONDUCTOR CONDUCTOR
1 2 3 4
UNGROUNDED UNGROUNDED GROUNDED GROUNDED L1 L2 N
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