Protection Devices; Dc Disconnect; Torques And Cable Sizes - SMA SUNNY BOY 3000-US Installation Manual

12 Technical Data

12.3 Protection Devices

DC reverse polarity protection
AC short-circuit current capability
AC overcurrent protection
Grid monitoring (SMA Grid Guard

12.4 DC Disconnect

Maximum DC input current
Maximum DC short-circuit current
Maximum system voltage
Maximum nominal size for string fuses
Maximum AC operating current
Dimensions W x H x D
Weight
Enclosure
Specifications subject to change without notice.

12.5 Torques and Cable Sizes

Terminal
AC & DC connecting terminal plate, inverter
AC & DC connecting terminal plate,
DC Disconnect
"COMBINED" spring terminal, DC Disconnect
Ground terminals PV protective conductor/
DC protective conductor, DC Disconnect
Screws for attaching the inverter and the
DC Disconnect to the wall mounting bracket and
closing the DC Disconnect cover
Screws for the enclosure lid of the inverter
96 SB30-40-US-IA-en-33
®
2)
15 in-lb. (1.7 Nm)
15 in-lb. (1.7 Nm)
15 in-lb. (1.7 Nm)
44 in-lb. (5 Nm)
53 in-lb. (6 Nm)
Short-circuit diode
Software-controlled
Current-controlled
Yes
30 A
36 A
600 V
20 A
34 A
7 13
7 ⁄ in. x 12 ⁄
8 64
(200 mm x 310 mm x 190 mm)
8 lb. (3.5 kg)
NEMA 3R
Torque
10 AWG to 6 AWG
(6 mm
10 AWG to 6 AWG
(6 mm
‒ 10 AWG to 6 AWG
(6 mm
10 AWG to 6 AWG
(6 mm
SMA America, LLC
31
in. x 7 ⁄ in.
64
Cable size
2 2
to 16 mm )
2 2
to 16 mm )
2 2
to 16 mm )
2 2
to 16 mm )
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Installation Manual