SMA SB3.0-1SP-US-40, Installation Manual, Page: 72 / 236

10 Technical Data SMA Solar Technology AG
Installation Manual SBxx-1SP-US-40-IA-xx-15 72
10.6 Fan (only with Sunny Boy 7.0-US / 7.7-US)
Width x height x depth 60 mm x 60 mm x 25.4 mm
(2.36 in x 2.36 in x 1 in)
Maximum operating altitude 3000 m (9843 ft)
Air flow rate ≥ 40 m³/h
10.7 Protective Devices
DC reverse polarity protection Short-circuit diode
AC short-circuit current capability Current control
Grid monitoring SMA Grid Guard 4.0
Maximum permissible fuse protection 50 A
Ground fault monitoring SB3.0-1SP-US-40 Insulation monitoring: R
iso
> 600 kΩ
Ground fault monitoring SB3.8-1SP-US-40 Insulation monitoring: R
iso
> 600 kΩ
Ground fault monitoring SB5.0-1SP-US-40 Insulation monitoring: R
iso
> 600 kΩ
Ground fault monitoring SB6.0-1SP-US-40 Insulation monitoring: R
iso
> 500 kΩ
Ground fault monitoring SB7.0-1SP-US-40 Insulation monitoring: R
iso
> 429 kΩ
Ground fault monitoring SB7.7-1SP-US-40 Insulation monitoring: R
iso
> 391 kΩ
All-pole sensitive residual-current monitoring unit Available
Arc fault detection AFCI, type 1, listed accord-
ing to UL1699B Available
10.8 Torques
Screw M5x60 for securing the inverter to the
wall mounting bracket 1.7 Nm ± 0.3 Nm (15.05 in-lb ± 2.65 in-lb)
Screws for attaching the enclosure lid of the
Connection Unit 3 Nm ± 0.3 Nm (26.55 in-lb ± 2.65 in-lb)
Screws for grounding at equipment grounding
terminals 6 Nm ± 0.3 Nm (53.10 in-lb ± 2.65 in-lb)
Screws for SPS terminal block for connecting
the outlet for secure power supply operation
0.3 Nm (2.65 in-lb)
Screws for AC-out terminal block for AC con-
nection
0.3 Nm (2.65 in-lb)
Screws for DC-in terminal block for DC connec-
tion
0.3 Nm (2.65 in-lb)
ENGLISH