Main cable(AC line cable)shall be short circuit protected and thermal overload
protected.
Always fit the input cable with fuse. Normal gG(US:CC or T)fuses will protect the
input cable in short circuit situation. They will also prevent damage to adjoining
equipment.
Dimension the fuses according to local safety regulations, appropriate input
voltage and the related current of the solar inverter.
The rated short circuit breaking capacity of the above protective device shall be
at least equal to the prospective fault current at the point of installation. See
section technical data of this manual details.
2
2
AC output cable: Cu; R,S,T, N+PE: 3*5.0mm +5.0mm for 8.0KW and
2
2
2*6.0mm +6.0mm for 10.0KW/12.0KW/15.0KW @40
℃
ambient temperature
with a max length of 5m, with operating time of the fuses is less than 5 seconds,
installation method B2 according to EN60204-1:2006, annex D: cable in conduit
cable trunking system, number of loaded circuit only one. Use H07RNF(cord
designation 60245 IEC66) for an ambient temperature of 40
℃
or less and use
90
℃
wire for ambient temperature between 40
℃
and 60
℃
.
Note 1
: For condition differing form those mentioned above, dimension the
cables according to local safety regulations, appropriate input voltage and the
load and the load current of the unit.(You can choose a thicker cable but the
fuses must rated according to the cable.)
Note 2
: Fuses must be approved by Notified Body.
Therefore the current-carrying capacity of the components and sub-assemblies
provided in the end-use system(connectors, cables, junction box, switch ger, etc.)
and the reverse current PV modules shall be considered based on the feedback
current and reverse current. The direct current(DC) circuit breaker or fuse
between each solar generator and inverter shall be provided based on solar
inverter input ratings.
Select DC cables based in the above inverter back-feed current and ISC PV rating
and Vmax ratings.
Selection of Fuses and Cables
Earth Connection
Ø
Screw
(
φ
4
the ground screw with screwdriver shown as follow.
hexagon wrench.torque:1.5
±
0
.
2Nm)
5.5.2 Communication interface
This product has a series of communication interfaces: such as
WIFI/LAN/GPRS, RF, RS485/Meter, DRM and USB for upgrading for human
and machine communication. Operating information like output voltage,
current, frequency, faulty information, etc., can be delivered to PC or
other monitoring equipment via these interfaces.
WiFi/Lan
/GPRS(Optional)
This inverter provides a WiFi/Lan port which can collect information from
inverter including status, performance and updating information to
monitoring website via connecting Pocket WiFi/Pocket Lan( purchase the
product from supplier if needed)
Connection steps:
Please check the Pocket WiFi user manual for more details.(torque:0.6
±
0
.
1Nm)
22
23
Installation
Installation
RF(Optional)
The inverter provides a RF(radio frequency) interface which can make a
load be switched or operated in a specified duration via connecting an
external Smart plug(purchase the product from supplier if needed.) so that
the load mostly consumes PV energy and incurs the lowest-possible
energy costs during operation.
Please check the Smart Plug user manual for the detail of connection steps.
