SMA STP 12000TL-US - Manual (Page 73)

Storage temperature −40°C to +60°C
(−40°F to +140°F)
Maximum permissible value for relative humid-
ity, non-condensing 100%
Maximum operating altitude above mean sea
level 2,000 m (6,562 ft)
Typical noise emission ≤ 51 dB(A)
Power loss in night mode < 1.8 W
Maximum data volume per inverter with Speed-
wire/Webconnect 550 MB/month
Additional data volume when using the Sun-
ny Portal live interface 600 kB/hour
Topology Transformerless
Cooling method OptiCool: temperature-controlled fan
Enclosure type rating in accordance with UL50 Type 3R
Protection class I
Grid configurations 480 V / 277 V WYE
Approvals and national standards, as per
05/2013 UL1741
CAN/CSA C22.2 No. 107.1-01
14.3 Protective Devices
DC reverse polarity protection Short-circuit diode
AC short-circuit current capability Current control
Grid monitoring SMA Grid Guard 3
Maximum permissible fuse protection 50 A
Ground-fault monitoring STP 12000TL-US-10 Insulation monitoring: R
iso
> 417 kΩ
Ground-fault monitoring STP 15000TL-US-10 Insulation monitoring: R
iso
> 333 kΩ
Ground-fault monitoring STP 20000TL-US-10 Insulation monitoring: R
iso
> 250 kΩ
Ground-fault monitoring STP 24000TL-US-10 Insulation monitoring: R
iso
> 208 kΩ
All-pole sensitive residual-current monitoring unit Available
Arc fault detection AFCI, type 1, listed accord-
ing to UL1699B Available
14 Technical Data SMA Solar Technology AG
Installation Manual 73 STP12-24TL-US-IA-en-16