SMA WBP-Box - Manual (Page 16)

5 Electrical Connection SMA Solar Technology AG
16 WBP-Box-IEN103320 Installation Guide
5.4 Connecting the Wind Power Inverter
Cable sizing:
☐ The cable has been sized for the maximum power of the wind power inverter.
☐ A stranded lead of type Silivolt-E 4 mm² or a comparable lead is used.
☐ Maximum length is 2 m.
☐ Maximum cross section is 6 mm².
Connect each wind power inverter as per the following procedure.
1. Attach the M20 cable gland to the enclosure opening for the wind power inverter.
2. Unscrew the cable gland's lock nut and pass it over the cable.
3. Remove the seal from the cable gland.
4. Pass the multiple seal insert over DC+ and DC − and press into the cable gland.
5. Connect DC+ to the DC+ connection terminal.
6. Connect DC − to the DC − connection terminal.
7. Tighten the lock nut firmly to the cable gland.
8. Close all enclosure openings that are not required with sealing plugs.