Installation and Operation Manual Page 30 of 104
(PVI-3.8/4.6-I-OUTD-US Rev.: 1.1)
On the AC output side an automatic magnetothermic switch should be inserted
between the Aurora inverter and the distribution grid (see sections 3.3.1 or 3.3.2 of this
manual).
WARNING: To reduce the risk of fire, connect only to a circuit provided
with 25A maximum branch circuit overcurrent protection for PVI-3.8-I or
with 32A maximum branch circuit overcurrent protection for PVI-4.6-I in
accordance with the National Electric Code (ANSI/NFPA 70)
-S-US-xx models have an integrated DC switch 600V-25A. -US-xx models don’t have
an integrated DC switch, it must be externally provided by the installer.
3.3.1 ELECTRICAL CONNECTING and/or DISCONNECTING
procedure (only -S-US-xx models)
WARNING: THE FOLLOWING OPERATIONS MUST ALWAYS BE
PERFORMED before accessing the power input of the Switch Box in order
to avoid injury to personnel and/or damage to equipment.
STEP 1 If the inverter is connected to the AC Grid (Fig. 17 - Terminal Block for AC
Connection– pos. "1", "2" and "3") DISCONNECT the inverter from the AC Grid by
opening the switch indicated as Part “D” in Fig. 9 - Electrical Connection Diagram.
STEP 2 Disconnect the DC side switch integrated in the witch Box.
STEP 3 Carefully cover all the photovoltaic panels using appropriate cover or perform
the grid CONNECTION and/or DISCONNECTION operation during night hours.
Ensure that the no photovoltaic panel can provide energy during this operation.
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