SMA Solar Technology AG
• On the right-hand side of the DC switch, each
pair of contacts DC+ against each contact DC-
(red, blue and white conductor against 1 black
conductor; gray, green and lilac conductor
against 1 blue conductor)
• On the right-hand side of the DC switch, each
contact DC+ and DC- against the grounding
conductor (red, blue, white, black, gray, green,
lilac and blue conductor against grounding
conductor)
5. Ground yourself prior to replacing the assembly to prevent ESD damage.
6. Remove the cable tie from the ferrite of the ribbon cable X1.
Replacement Manual
5 Removing the BFS Assembly
STP50-40-BFS-RM-xx-10
15