SMA Solar Technology AG
7 Electrical Connection
Operating Manual
MC_BOX_36-BE-en-20
25
Procedure:
1. According to the type of cable routing and the installation conditions, determine the required
fuse link for the fuse switch. Remember that the permitted fuse rating is 100 A to 500 A.
2. Remove the contact hazard protection cover (see Section 7.3, page 23).
3. Insert the generator connection cable into the Multicluster Box and prepare
(see Section 7.4, page 24).
4. Turn the handle of the fuse holder down.
5. With both hands, lift the fuse holder up and out of the anchorage.
6. Release the screws on the cover of the terminals
and remove the cover. Use a PH 2 screwdriver.
7. Connect the line conductors L1, L2 and L3 to the
fuse switch
MC-F1 Generator
according to the
labels (AF 19, torque: 25 Nm). Make sure to
adhere to the following screw assembly:
screw head / spring washer/ fender washer/
terminal lug / fuse switch terminal.
8. Ensure that there is a right-hand rotating magnetic
field at the generator connection point.
9. Insert the terminal cover and tighten the screws (PH 2 screwdriver, torque: 4 Nm).
10. Insert the fuse holder in its anchorage. Press the fuse holder down slightly.
11. Insert the LV/HRC size 3 fuse links into the fuse holder.
