SMA SMC 4600A Installation - Manual (Page 57)

SMA Solar Technology AG Maintenance and Cleaning
Installation Manual SMC46-60A11-IA-en-81 57
8.3 Checking the Electronic Solar Switch (ESS) for Wear
Check the Electronic Solar Switch for wear before plugging it in. Depending on the shape of the
Electronic Solar Switch, you can estimate the wear on either the metal tongues (shape A) or on the
plastic (shape B).
Result Measure
☑ The metal tongues in the Electronic Solar
Switch are undamaged and not discoloured
(A).
or
☑ The plastic in the Electronic Solar Switch is
undamaged (B).
1. Securely attach the Electronic Solar Switch
handle.
2. Commission the inverter as described in
Section 6 "Commissioning" (page 44).
☑ The metal tongues in the Electronic Solar
Switch have a brown discolouration or are
burned through (A).
or
☑ The plastic in the Electronic Solar Switch
shows thermal deformation (B).
The Electronic Solar Switch can no longer reliably
disconnect the DC side.
1. Replace the Electronic Solar Switch handle
before re-attaching (for the order number
see Section 12 "Accessories" (page 79)).
2. Recommission the inverter as described in
Section 6 "Commissioning" (page 44).
A
B
A
B