Connecting The Power Cable Of The Battery - SMA SUNNY BOY STORAGE 3.8-US Instrucciones De Instalación

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6 Electrical Connection
Requirements on the DC conductors:
☐ The conductors with regards to its ampacity, rated temperatures, operating conditions and its
power loss must be made in accordance with the local standards and the National Electrical
®
Code
ANSI/NFPA 70 or the Canadian Electrical Code
☐ 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
☐ Maximum permissible temperature: 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 the 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. Strip off the conductor insulation.
6. Connect the conductors to the fuse holders in
accordance with the labeling. To do so, insert each
conductor into the terminal point of the fuse holder
and tighten the screw (PZ 2, torque: 2 Nm to
2.5 Nm (18 in-lb to 22 in-lb)).
54
SBSxx-US-10-IA-xx-12
®
CSA C22.1.
DANGER
SMA Solar Technology AG
Installation Manual
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