Ac Connection In The Dc Disconnect - SMA SUNNY BOY 5000-US Installation Manual

Electrical Connection

6.5.2 AC Connection in the DC Disconnect

If you replace an existing inverter
• In the switchbox, disconnect the cables for the AC line on which you are working.
1. Switch off the main switch in the main switchbox.
3
2. Install a ⁄ in. cable gland in the breakout opening for the AC cables of the DC disconnect.
4
3. Between the main switchbox and the breakout opening for the AC cables of the DC disconnect,
3
install a ⁄ in. cable conduit.
4
4. Pull the AC cables from the switchbox through the cable conduit into the DC disconnect.
Open terminals fully before feeding through the cables
5. Connect the AC device grounding conductor to the
PE terminal labeled
208 V and 240 V System Configuration
Do not connect the Sunny Boy 8000-US to a 208 V grid.
6. Connect conductor L1 (AC conductor 1 or
UNGROUNDED) to terminal L1.
7. Connect conductor L2 (AC conductor 2) to terminal
L2.
8. Connect conductor N (AC conductor N) to terminal
N.
When using grounded 240 V or 208 V Delta grids
• Connect terminal L2 to the grounded phase.
42 SB50US-80US-IA-en-36
in the DC disconnect.
GROUNDED L1 L2 N
L2
GROUNDED L1 L2 N
N
SMA America, LLC
2 3 5 7 A B + -
PE
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
Installation Manual