2. Release the screws of the DC protective cover
using an Allen key (AF 3), lift the DC protective
cover upwards from below and remove it.
3. Plug the new surge arresters into the slots
provided until they lock into place with the
locking tabs. The inspection window must be
located on the right-hand side.
4. Position the DC protective cover at the upper edge, flip down and tighten it (torque: 3.5 Nm).
6 Electrical Connection
SMA Solar Technology AG
Operating Manual
27
STP20-25TL-BE-en-10