beautypg.com

4 connecting additional sma pv offset boxes – SMA PVO-N-20 User Manual

Page 31

background image

SMA Solar Technology AG

7  Electrical Connection

Installation Manual

PVO-BOX-IA-en-10

31

18. Screw the enclosure lid onto the SMA PV Offset

Box using the 4 screws (torque: 5 Nm).

7.2.4 Connecting Additional SMA PV Offset Boxes

The AC cable is looped through between each SMA PV Offset Box.

1. Disconnect the previously installed SMA PV Offset Box from all voltage sources (see Section 9).
2. Slightly release the swivel nut of the second cable

gland M20 on the previously installed
SMA PV Offset Box.

3. Remove the sealing plug from the cable gland.
4. Route the cable through the cable gland to the terminals in the previously installed

SMA PV Offset Box.

5. Remove the cable ties.
6. Connect L and N to the 4-pole plug as follows:

• Connect L to the first or second free terminal.
• Connect N to the third or fourth free terminal.