SMA SIC 50 - Manual (Page 20)

Electrical Connection SMA Solar Technology AG
20 SIC50-IA-en-11 Installation Guide
6.3 Grounding
6.3.1 Grounding the Charge Controller
1. Open the charge controller. Loosen the screws of the enclosure lid and remove the lid.
2. Unscrew the lock nut of the metric-thread cable
gland (B) and slide it along the PE cable.
3. Route the PE cable through the cable gland into the
charge controller and connect it to the "EARTH"
connection terminal (A).
4. Retighten the lock nut of the cable gland.
N M25 metric-thread cable gland for the signaling contact and the battery temperature
sensor cables
O M25 metric-thread cable gland for communication cable
DANGER!
Risk of lethal electric shock.
The charge controller has the protection class I.
• Ground the charge controller properly, regardless of whether the battery and PV are
grounded.
Object Description