10
4.6 PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV
module connection. To reduce risk of injury, please use the proper recommended cable size as below.
Model Wire Size Cable (mm
)
Torque value（max）
3.2KW/5KW 1 x 12AWG 4 1.2 Nm
PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.
INVERTER MODEL
3.2KW
5KW
Max. PV Array Open Circuit Voltage
500Vdc
PV Array MPPT Voltage Range
120Vdc~450Vdc
Take 250Wp PV module as an example. After considering above two parameters, the recommended module
configurations are listed as below table.
Solar Panel Spec.
(reference)
- 250Wp
- Vmp: 30.1Vdc
- Imp: 8.3A
- Voc: 37.7Vdc
- Isc: 8.4A
- Cells: 60
SOLAR INPUT
Q'ty of panels
Total input
power
(Min in serial: 6 pcs, max. in serial: 13 pcs)
6 pcs in serial 6 pcs 1500W
8 pcs in serial 8 pcs 2000W
12 pcs in serial 12 pcs 3000W
13 pcs in serial 13 pcs 3250W
8 pieces in serial and 2 sets in parallel 16 pcs 4000W
10 pieces in serial and 2 sets in parallel 20 pcs 5000W
PV Module Wire Connection
4.7 Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown below.
CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because it’s required
to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a
short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check
manufacturer of air conditioner if it’s equipped with time-delay function before installation. Otherwise, this
inverter/charger will trig overload fault and cut off output to protect your appliance but sometimes it still causes
internal damage to the air conditioner.
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