Wiring With Dc Disconnect - SMA SUNNY BOY 5000-US Installation Manual

Electrical Connection

6.2.1 Wiring with DC disconnect

Procedure and Order
1. Switch off all energy sources. Open all AC and DC disconnect switches and breakers.
2. Wiring from AC breaker to DC disconnect.
3. AC wiring from DC disconnect to Sunny Boy.
4. Wiring from PV array to DC disconnect.
5. DC wiring from DC disconnect to Sunny Boy.
6. Switch DC disconnect to position "1".
7. Switch on AC breaker.
Removing Sunny Boy from Wiring
• Disconnect all AC disconnect switches.
• Switch DC disconnect to position "0".
• Always disconnect the AC side before the DC side.
• When the Sunny Boy is switched off, remove the wiring in reverse order.
38 SB50US-80US-IA-en-36
SMA America, LLC
Installation Manual