SMA SB Series - Danger: Electric Arc

7 Mounting the Power Unit
SMA Solar Technology AG
Replacement Manual SBxx-1SP-US-41-PU-RM-xx-10 15
6. Plug the terminal block with the connected DC
conductors into slot DC-in in the Connection Unit.
While doing so, only touch the terminal block on the
black enclosure.
7.
DANGER
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 injuries.
• Mount the terminal block on the slot as described in the following.
8. Tighten (torque: 1.7Nm ± 0.3 Nm (15.05in-lb ±
2.65in-lb)) the screws of the terminal block using a
flat-blade screwdriver (blade width: 4mm (5⁄32in)).
9. Ensure that the terminal block is securely in place.
10. Plug the terminal block with the connected AC
conductors into the AC-out slot in the
ConnectionUnit, and tighten (torque: 1.7Nm ± 0.3
Nm (15.05in-lb ± 2.65in-lb)) with a flat-blade
screwdriver (blade width: 4mm (5⁄32in)).
ENGLISH