SMA RSB-2S-US-10 Manuel D'installation page 31

SMA Solar Technology America LLC
Procedure:
1.
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous DC voltage which is present
in the DC conductors. Touching the DC conductors can lead to lethal electric shocks.
• Switch off the DC load-break switch on the inverter.
• Only touch the DC conductors on their insulation.
2. Pull off the adhesive tape on the enclosure opening.
3. Attach the conduit at the conduit fitting in the Rapid Shutdown Box enclosure.
4. Lead the positive and negative conductors of the first output string up to the terminal block A.
5. Lead the positive and negative conductors of the second output string up to the terminal block
B.
6. Lead the existing equipment grounding conductors of the output strings to the equipment
ground bar and connect them:
• Strip the insulation of the equipment grounding
conductor by 12 mm (0.5 in).
• Thread the cylinder-head screw through the spring lock washer, the clamping bracket and
the washer.
• Lead the equipment grounding conductor between the washer and the clamping bracket
and tighten the cylinder-head screw using a hex socket screwdriver (TX 25) (torque: 6
Nm ± 0.6 Nm (53 in-lb ± 5 in-lb)).
7. Strip the insulation from the conductors of each output string by 12 mm (0.5 in).
8. Connect the conductors of the first output string to
the terminal block A. To do so, push the locking
levers upwards to the stop and insert the conductors
into the terminals. When doing so, ensure that the
positive terminal and negative terminal have the
correct polarity at the inverter.
Installation Manual
DANGER
6 Electrical Connection
RSS-US-IA-xx-14 31