SMA Sunny Boy Storage 3.8-US Instrucciones De Instalación página 55

SMA Solar Technology AG
☐ The DC terminal block temperature rating is +90°C (+194°F).
☐ The maximum permitted temperature for the fuses of the DC connection of 105°C (221°F)
must be observed.
☐ Conductor type: copper wire
☐ Permissible temperature: at least 75°C (+167°F) or 90°C (194°F)
☐ The conductors must be made of solid wire, stranded wire or fine stranded wire. When using
fine stranded wire, bootlace ferrules must be used.
☐ Conductor cross-section: 2.5 mm² to 10 mm² (14 AWG to 8 AWG)
☐ Maximum length of conductors: 10 m (33 ft)
6.8.3 Connecting the power cable of the battery
Danger to life from electric shock due to live DC cables at the battery.
The DC cables connected to a battery may be live. Touching the DC conductors or the live
components leads to lethal electric shocks.
• Ensure that the inverter is disconnected from all voltage sources.
• Do not touch non-insulated cable ends.
Procedure:
1. Remove the adhesive tape from the enclosure opening for DC connection and, if other
enclosure openings are to be used, take the sealing plugs out of these enclosure openings.
2. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.
3. Attach the conduit to the conduit fitting.
4. Guide the conductors from the conduit into the inverter. In the process, install the conductors in
the inverter such that they do not come into contact with communication cables, the cable of
the LED assembly or other live conductors. Lay the conductors as a loop if they are too long.
5. To connect equipotential bonding of the battery to a grounding point, first strip off the
insulation of the conductor by 18 mm (0.71 in).
6. Insert the screw through the conical spring washer,
the clamping bracket and the washer. Then put the
conductor between the washer and clamping
bracket and tighten the screw (TX 25, torque: 6 Nm
± 0.3 Nm (53 in-lb ± 2.65 in-lb)). Here, the
conductor must have contact with an inner edge of
the clamping bracket.
Installation Manual
DANGER
SBSxx-US-10-IA-xx-14
6 Electrical Connection
55