Electrical Connection
Electrical Connection
35
WARNING!
Damage to the inverter due to electrostatic discharge
Touching electronic components will cause damage to or
destroy the inverter through electrostatic discharge.
Ground yourself before touching any component.
WARNING!
Damage to the inverter due to moisture ingress during
installation!
Never open the inverter when it is raining or snowing, or the
humidity is over 95%.
For attaching conduit to the enclosure, only use UL-listed
rain-tight conduit fittings or UL-listed conduit fittings for
wet locations complying with UL514B.
Seal all unused openings tightly.
6.1 Overview Of All Electrical Wiring Methods
All electrical wiring will be done in the wiring box, and all electrical wiring
methods are similar. Therefore this section will introduce all electrical wiring
steps and requirements.
Required wire size and torques
Ø
Inverter power terminal (Purchased by customer)
Inverter communication terminal (Purchased by customer)
34
1
2
3
3
4
5
6
7
No.
Terminals
Type
Cross-sectional Area Range
Strip Length
1
PV terminals
90°C (194°F),600V,Copper 10–8 AWG
0.47in/12mm
2
AC terminals
90°C (194°F),600V,Copper
12–8 AWG(3.8KW)
10–8 AWG(5.0KW\6.0KW\7.6KW)
0.47in/12mm
3
Ground terminals 90°C (194°F),600V,Copper 8 AWG
0.47in/12mm
No.
Terminals
Port Pin
Type
Cross-sectional Area
Range
Strip Length
Torque
Pin1:RS485_METER_A
Pin2:RS485_METER_B
Pin3:GND
Pin4:+12V_RELAY_OUT
Pin5:DRM0
Pin6:+12V_COM
Pin7:
Pin8:STOP_NO-
Pin 1: SYSR_L
Pin 2: SYSR_H
Pin 3: CAN_L
Pin 4: CAN_H
Pin 5: RS485_BI_A
Pin 6: RS485_BI_B
Pin 7: +12V
Pin 8: GND
Pin 1: SYSR_L
Pin 2: SYSR_H
Pin 3: CAN_L
Pin 4: CAN_H
Pin 5: RS485_BI_A
Pin 6: RS485_BI_B
Pin 7: +12V
Pin 8: GND
Pin 1: GND
Pin 2: RS485_MLPE_A
Pin 3: RS485_MLPE_B
CAT5 or better
24-18 AWG
0.24in/6mm
1.8 in-lbs
CAT5 or better
24-18 AWG
0.24in/6mm
1.8 in-lbs
18-16 AWG
CAT5 or better
24-18 AWG
0.24in/6mm
1.8 in-lbs
18-16 AWG
2
Communication in terminal
3
Communication out terminal
4
MLPE terminal
1
AUX terminal
CAT5 or better
24-18 AWG
0.24in/6mm
1.8 in-lbs
