SMA MULTICLUSTER BOX 12 - Manual (Page 42)

12 Technical Data SMA Solar Technology AG
42 MC-BOX-12-3-20-BE-en-10 Operating Manual
General Data
Number of line conductors 3
Permitted grid configuration TN-S, TN-C-S and TT
Rated voltage between L and N 250 V
Rated voltage between L1 and L2 433 V
Rated voltage for auxiliary circuits 230 V 250 V AC
Rated frequency 50 Hz
Frequency range 45 Hz to 65 Hz
Rated impulse withstand voltage 4 kV
Width x height x depth (with base) 1,200 mm x 1,600 mm x 435 mm
(incl. 200 mm base)
Weight 200 kg
Maximum operating altitude above mean sea level 3,000 m
Inner subdivision Form 1 (no subdivision)
Exterior design closed type
Installation only fixed interior installation permitted
Construction type fixed components
Suitable for use by electrically qualified persons or unqualified
persons
Installation of the system and replacement of
equipment by electrically qualified persons only /
actuation of test buttons and read-off of information
by unqualified persons permitted
Measures for protection against electric shock Basic protection afforded by insulation materials and
covers / fault protection by grounding conductors
and short-circuit protection devices / personal
protection by residual-current devices
Degree of protection of enclosure*
* in accordance with IEC 60529
IP55
Degree of protection with enclosure door open* IP20
Pollution degree at the mounting location**
** in accordance with IEC 61439-1:2011
3
Pollution degree in the enclosure (micro-environment) 2
Protection class***
*** in accordance with IEC 417
1
Overvoltage category****
**** in accordance with EN 60664
Overvoltage category 3
EMC environment, emission** B
EMC environment, interference immunity** A
EC Declaration of Conformity Yes
Operating temperature range*****
*****At operating temperatures of over 40°C the Sunny Island inverters reduce their output power (derating).
− 25°C to +60°C
Humidity 0% to 100%