Sma AUTOMATIC SWITCH BOX M-20 Manuel d'utilisateur télécharger pdf (Page 57)

SMA Solar Technology AG 10Technical Data

Installation Guide AS-BOX-M_L-IA-IEN110320 57

10.2 Automatic Switch Box L-20

General Data

Rated insulation voltage

Number of phases 3-phase

Nominal voltage range 187 V … 253 V

Nominal voltage range in case of higher input voltage

range

*

optional

195.5 V … 260 V

Nominal frequency range 45 Hz … 55 Hz

Number of Sunny Backup to be connected 3

Permitted grid structure TN-C/TT

Width x height x depth 800 mm x 950 mm x 225 mm

Weight 70 kg

Maximum altitude above MSL 3 000 m

Protection rating of enclosure

**

according to IEC 60529

IP 54

Protection rating of inner protective cover

IP 20

Protection class

***

***

according to IEC 417

EMC environment A/B

EC Declaration of Conformity Yes

Automatic disconnection unit

****

****

according to DIN VDE 0126-1-1

Yes, in combination with

Sunny Backup 5000

Inner subdivision

*****

*****

according to IEC 60439-1

Structure 1 (no subdivision)

Maximum prospective short-circuit current of grid

connection

25 kA

Switch cabinet wiring 2.5 kV AC

230 V AC terminals on control board 1.7 kV DC

Communication ports on control board 500 V DC

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Sma AUTOMATIC SWITCH BOX M-20 Manuel d'utilisateur Page 57

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