7 opening and closing, 1 safety, 2 opening the inverter – SMA SB 3300 Installation User Manual
Page 43: Opening and closing, Safety, Opening the inverter, 1 safety 7.2 opening the inverter
SMA Solar Technology AG
Opening and Closing
Installation Guide
SB33_38-IEN111851
43
7 Opening and Closing
7.1 Safety
7.2 Opening the Inverter
1. Disconnect the line circuit breaker and prevent it from being reactivated.
2. Pull the Electronic Solar Switch downward, slightly
towards the wall.
3. Using a current probe, ensure that no current is
present at all DC cables.
☑ If current present, check the installation.
DANGER!
Risk of lethal electric shock!
Before opening the inverter observe the following:
• Ensure that no voltage is present on the AC side.
• Ensure that no voltage is present on the DC side.
NOTICE!
Static discharges can damage the inverter!
Internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Ground yourself before you touch a component.