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SMA Solar Technology AG
• Guide the equipment grounding conductor
between the washer and clamping bracket and
tighten the screw (TX 25) (torque: 6 Nm ±
0.3 Nm (53.10 in-lb ± 2.65 in-lb)). Here, the
equipment grounding conductor must have
contact with an inner edge of the clamping
bracket.
• If two equipment grounding conductors are to
be connected to one equipment grounding
terminal, guide both equipment grounding
conductors between the washer and clamping
bracket and tighten the screw (TX 25, torque:
6 Nm ± 0.3 Nm (53.10 in-lb ± 2.65 in-lb)).
Here, every equipment grounding conductor
must have contact with an inner edge of the
clamping bracket.
7. Plug the terminal block for the DC connection into the DC-in slot in the inverter.
8.
Danger to life due to electric arc
The terminal block must be fastened to the slot with two screws. If the terminal block is not
correctly mounted and comes out of the slot, an electric arc can form. An electric arc can
cause life-threatening burns and can cause fire.
• Mount the terminal block using the two screws as described in the following.
9. Tighten the screws of the terminal block using a flat-
blade screwdriver (blade width: 3.5 mm (0.14 in))
(torque: 0.3 Nm (2.65 in-lb)).
10. Ensure that the terminal block is securely in place and the screws are tightened.
11. Strip off the conductor insulation by 18 mm (0.71 in).
12. In the case of fine stranded wire, provide each conductor with a bootlace ferrule.
Installation Manual
DANGER
SBxx-1SP-US-41-IA-xx-10
6 Electrical Connection
1
2
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