Assembling The Ac Connector - Sungrow SG2.0RS-S User Manual

5 Electrical Connection
Before connecting the inverter to the grid, ensure the grid voltage and frequency
comply with requirements, for which, refer to " " T T e e c c h h n n i i c c a a l l D D a a t t e e " " . Otherwise, contact the
electric power company for help.
A A C C C C i i r r c c u u i i t t B B r r e e a a k k e e r r
An independent two-pole circuit breaker must be installed on the output side of the
inverter to ensure safe disconnection from the grid. The recommended specifications
are as follows.
I I n n v v e e r r t t e e r r M M o o d d e e l l
SG2.0RS-S/SG2.5RS-S/SG3.0RS-S
SG3.0RS/SG3.6RS/SG4.0RS/SG5.0RS
SG6.0RS
• Determine whether an AC circuit breaker with greater overcurrent capacity is
required based on actual conditions.
• Multiple inverters cannot share one circuit breaker.
• Never connect a load between the inverter and the circuit breaker.
R R e e s s i i d d u u a a l l C C u u r r r r e e n n t t M M o o n n i i t t o o r r i i n n g g D D e e v v i i c c e e
With an integrated universal current-sensitive residual current monitoring unit included,
the inverter will disconnect immediately from the mains power once a fault current with
a value exceeding the limit is detected.
However if an external residual current device (RCD) is mandatory, the switch must be
triggered at a residual current of 300 mA (recommended), or it can be set to other
values according to local regulations. For example in Australia, the inverter can use an
additional 30 mA (type A) RCD in installations.

5.5.2 Assembling the AC Connector

Step 1 Unscrew the swivel nut of the AC connector.
24
R R e e c c o o m m m m e e n n d d e e d d S S p p e e c c i i f f i i c c a a t t i i o o n n
25 A
32 A
40 A
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