- 54 -
000408AG
5 - Installation
Load protection switch (AC disconnect switch)
To protect the AC connection line of the inverter, we recommend install-
ing a device for protection against over current and leakage with the fol-
lowing characteristics:
PVI-3.0-TL-OUTD PVI-3.6-TL-OUTD PVI-4.2TL-OUTD
Type Automatic circuit breaker with differential thermal magnetic protection
Voltage rating 230 Vac
Current rating 20 A 20 A 25 A
Magnetic protection characteristic B/C
Type of differential protection A/AC
Differential sensitivity 300 mA
Number of poles 2
Connection to the AC side terminal board
To prevent electrocution hazards, all the connection operations must be carried out with the
disconnect switch downstream of the inverter (grid side) open and locked.
For all inverter models, connection is carried out using the AC output termi-
nal block
10
passing the cables internally through the AC cable gland
19
.
Remove the protective lm located on the hole to be used for the AC
cables
19
, insert the M25 cable gland in the hole and secure it using the
M25 lock nut (to ensure environmental protection IP65 it is necessary
to x the cable gland to the inverter chassis with a minimum tightening
torque of 7.5 Nm).
Strip 10 mm of sheathing from the AC grid connection cables then plug
the AC line cable into the inverter, passing it through the previously in-
stalled cable gland; the maximum diameter accepted by the cable gland
is from 10 to 17 mm².
Connect on the terminal block
10
the protective earth (yellow-green) ca-
ble to the contact labelled with the
symbol, the neutral cable (normally
blue) to the terminal labelled with the letter N and the phase cable to the
terminal labelled with the letter L; each terminal of the terminal block ac-
cepts a cable with cross-section which can vary from 0.6 up to 16 mm²
(The AC cables must be tightened on the terminal block with a minimum
torque of 1.5 Nm). Pay special attention and ensure you do not re-
verse the phase with the neutral!
Once the connection to the terminal board has been made, tighten the
cable gland rmly (tightening torque 5.0Nm) and check the seal.
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