10
R3 Note Series
User Manual
11
R3 Note Series
User Manual
Figure 3-4 mounting the inverter
3.4 Mounting procedure
Setp1: Drill 4 Fix Ø11 holes in the wall according to the dimensions.
Step2: Fix the wall mounting bracket on the wall with 4 expansion bolts in accessory bag.
Setp4: Place the inverter on the wall-mounted bracket and install the fix screw.
fix screw
3.5 Electrical connection
3.5.1 Connection to the grid (AC output)
Connect the inverter to the grid as follows:
1)Strip off N/L1/L2/L3 cables as figure 3-5:
Diameter ranges
：
15-25mm
12mm
50mm
6-10mm²
Remark
Protective layer
Length of stripped off
Insulate layer
Cross section of ac cables
Description
A
B
C
D
No.
Figure 3-5 Strip off N/L1/L2/L3 cables
2) Strip off PE cable as figure 3-6:
1) Add breaker or fuse to AC side, the specification should be more than 1.25 times of rated AC output
current.
2) The PE line of inverter should be connected to the earth, make sure the impedance of neutral wire
and earth wire less than 10 ohm.
3) Disconnect the breaker or fuse between the inverter and the utility.
4) All inverters incorporate a certified internal Residual Current Device (RCD) in order to protect against
possible electrocution and fire hazard in case of a malfunction in the PV array, cables or inverter.
There are 2 trip thresholds for the RCD as required for certification (IEC 62109-2:2011). The default
value for electrocution protection is 30mA, and for slow rising current is 300mA.
A
C
D
B
