Ac Connection; Requirements For The Ac Connection - SMA SUNNY BOY 3.0-US Instructions D'installation

SMA Solar Technology AG
Position
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6.2

AC Connection

6.2.1

Requirements for the AC Connection

Additionally required material (not included in the scope of delivery):
☐ Conduits (trade size: 21 mm (0.75 in) or smaller with suitable reducer bushing)
☐ UL-listed raintight or liquidtight conduit fittings (trade size: 21 mm (0.75 in) or smaller with
suitable reducer bushing)
Requirements on the AC conductors:
☐ The maximum permitted temperature of the terminal block for AC connection of 105°C
(221°F) must be observed.
☐ 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
☐ Conductor type: copper wire
☐ Maximum permissible temperature at SB3.0-1SP-US-41, SB3.8-1SP-US-41, SB5.0-1SP-US-41
and SB6.0-1SP-US-41: 75°C (+167°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: 4 mm² to 16 mm² (12 AWG to 6 AWG)
Load-break switch an cable protection:
☐ Each inverter must be protected with its own overcurrent protective device. Observe the
maximum permissible fuse protection (see Section 10 "Technical Data", page 65).
☐ The load-break switch or circuit breaker must be listed (see National Electrical Code
NFPA 70) or Canadian Electrical Code
☐ Loads installed between the inverter and the overcurrent protective device must be fused
separately.
☐ The overcurrent protective device for the AC output circuit is to be provided by others.
Installation Manual
Designation
Network ports A and B for connecting a router or network switch
USB port for connecting a USB flash drive (for service purposes)
MFR slot for connection to the multifunction relay
Pin connector BAT is not used
Equipment grounding terminals for the equipment grounding conductors
of the PV array
Communication assembly
Jack DISPLAY for the LED assembly connection in the enclosure lid of the
Connection Unit
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CSA C22.1).
6 Electrical Connection
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CSA C22.1.
SBxx-1SP-US-41-IA-xx-12
®
ANSI/
31