SMA AC-SPD STP 110-60 - Final Connections

7 Installing the AC-SPD Assembly
SMA Solar Technology AG
Replacement Manual STPxxx-60-AC-SPD-RM-xx-10 19
6. Connect the three AC cables on the left side of the
assembly to their original position. Align the terminal
lugs correctly and tighten the screws provided
(M6x14) (AF10, tightening torque: 4.2±0.1Nm).
Risk of incorrect pole assignment: Ensure the
correct assignment of the AC cables (L1, L2, L3).
7. Connect the control cables.
8. Lift the plate with the AC terminals sideways and to the right into the enclosure.
9. Secure the plate with the AC terminals first with the
screw (M8x20) provided. Then fasten the five
screws (M4x10) from the scope of delivery. Tighten
all six screws (5x PH1, tightening torque:
1.5±0.1Nm/1x AF13, tightening torque:
4.3±0.1Nm).
10. Fasten the three cables (L1, L2, and L3) to the top of
the AC terminals using the hex nuts (AF13,
tightening torque: 14±0.5Nm). Ensure that the
original order of the cables is restored and that the
four cables behind them remain on the plate with
the AC terminals.
11. Fasten PE (PH#).
ENGLISH