SMA SB 3000TL-20 Installation - Manual (Page 69)

SMA Solar Technology AG Maintenance and cleaning
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 69
8.2 Checking the Electronic Solar Switch (ESS) for Wear
Check the Electronic Solar Switch for wear before plugging it in.
Result Measure
☑ The metal tongues inside the
connector are not damaged or
discolored.
• Insert the handle of the Electronic Solar Switch
securely in the socket on the underside of the
enclosure.
• Re-commission the inverter as described in section
6 ”Commissioning” (page 53).
☑ The metal tongues inside the
connector have a brown
discoloration or are burned out.
The Electronic Solar Switch can no longer safely
disconnect the DC side.
• Replace the Electronic Solar Switch handle before
attaching it again (for the order number see
section 14 ”Accessories” (page 100).
• Re-commission the inverter as described in section
6 ”Commissioning” (page 53).