Closing The Dc Disconnect - SMA SUNNY BOY 5000-US Installation Manual

SMA America, LLC

6.9 Closing the DC Disconnect

All string fuses must be securely mounted
.
1. Mount the cover onto the DC disconnect and insert
the rotary handle. Turn the rotary handle to position
"0".
2. Tighten the screw on the right side of the rotary
handle. Use a cross-head screwdriver (screw used:
3
UNC no. 5x ⁄
4
3. Insert the screw and conical spring washer of the
DC disconnect into the underside. Tighten the screw with a torque of 44 in-lb. (5 Nm).
The toothing of the conical spring washer must point toward the cover for the DC
disconnect to be grounded
SB50US-80US-IA-en-36
2 4
1 3
1 2 3 4
UNGROUNDED
in. cross-head, flat-head).
GROUNDED
Electrical Connection
2 4
GROUNDING
ELECTRODE
CONDUCTOR
1 3
1 2 3 4
UNGROUNDED GROUNDED L1 L2 N
SB50US-80US-IA-en-36 57