INVT iMars BG25KTR

iMars grid-tied solar inverters Installation
24
(8) The installation should ensure that the inverter is reliably grounded, and the material of
grounded metal conductor should be consistent with the metal material reserved for the
grounding of the inverter.
z Do not remove any part and component of the inverter unintended; ot
herwise
damage to the device and physical injury may occur.
4.2.3 Connection cables
The user can select connection cable according the table below:
Table 4-4 Cable specifications
Model
DC side
AC side
Cross-
section
(length ≤50m)
mmϡ
ϡ
Cross-
section
(length >50m)
mmϡϡ
Mini cross-section
mmϡϡ
L
N/PE
12kW
/15kW /
17kW
4
6
6
4
20kW / 25kW
4
6
8
4
30kW
4
6
10
6
4.2.4 Miniature circuit breakers
It is recommended strongly to install circuit breakers or fuses at the DC input and AC output to
ensure safe installation and running.
z
In order to protect the PCE, user and installer, external DC and AC circuit
breaker shall be equipped at the end-use application;
z The wiring shall be according local electric code
. Choose proper cable for power
input and output lines. Input and output cable shall be PV private cables suitable
for outdoor use.
Table 4-5 Breakers specifications
Model
DC input
AC output
Recommended DC breakers
(optional for length >100m)
Recommende
d AC breakers
12kW
DC1000V, C32A, 2P
AC400V, C25A, 4P
15kW
DC1000V, C32A, 2P
AC400V, C32A, 4P
17kW
DC1000V, C32A, 2P
AC400V, C35A, 4P
20kW
DC1000V, C40A, 2P
AC400V, C50A, 4P
25kW
DC1000V, C40A, 2P
AC400V, C63A, 4P
30kW
DC1000V, C50A, 2P
AC400V, C63A, 4P