SMA Sunny Boy 3000TL-US Installation Manual page 56

10 Disconnecting the Inverter from Voltage Sources
6.
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic discharge.
• Ground yourself before touching any components.
7. Ensure that no voltage is present on the AC connecting terminal plate using a suitable measuring
device. Insert the test probe in each round opening of the terminal:
• Ensure that no voltage is present between
L1 and N.
• Ensure that no voltage is present between L1 and
the equipment grounding conductor.
• Ensure that no voltage is present between
L2 and N.
56 SB3-5TLUS22-IA-en-12
SMA America, LLC
Installation Manual