14 Technical Data SMA Solar Technology AG
104 SB30-50TL-21-IA-en-21 Installation Manual
* Depending on country setting
Protective Devices
General Data
Feed-in phases 1
Connection line conductors 1
Overvoltage category as per IEC 60664-1 III
DC reverse-polarity protection Short-circuit diode
Input-side disconnection device*
*Optional
Electronic Solar Switch
DC overvoltage protection Thermally monitored varistors
AC short-circuit current capability Current control
Grid monitoring SMA Grid Guard 3
Maximum permissible fuse protection 25 A
Earth fault monitoring Insulation monitoring: R
iso
> 500 k Ω
All-pole sensitive residual-current monitoring unit Installed
Width x height x depth,
without Electronic Solar Switch
490 mm x 490 mm x 185 mm
Width x height x depth,
with Electronic Solar Switch
490 mm x 519 mm x 185 mm
Weight 26 kg
Length x width x height of packaging 597 mm x 617 mm x 266 mm
Transport weight 31 kg
Climatic category as per IEC 60721-3-4 4K4H
Environment category Outdoors
Degree of pollution outside the enclosure 3
Degree of pollution inside the enclosure 2
Operating temperature range − 25°C to +60°C
Maximum permissible value for relative humidity,
non-condensing
100%
Maximum operating altitude above MSL 2,000 m
Noise emission (typical) ≤ 29 dB(A)
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