SMA Solar Technology AG
68 SB50US-80US-IUS094030 Installation Guide
5.11 Closing the SMA DC-Disconnect (if applicable)
1. Make sure the string fuses are securely mounted.
2. Position the cover onto the SMA DC-Disconnect
and insert the switch handle into the cover.
3. Turn the switch to the "0" position and tighten the
screw on the right side of the switch with a small
phillips screwdriver (used screw: UNC no 5 x 3/
4“, cross recess Pillips pan head machine screw).
4. Install the screw and washer on the bottom side of
the SMA DC-Disconnect, to fasten the cover. The teeth of the washer must face toward the cover
in order to ensure proper grounding. Tighten the screw to a torque of 44 in-lb (5 Nm).
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