Pv Connection - INFOSEC C3 MPPT User Manual

5. Make sure the wires are securely connected.
CAUTION: Important
Make sure you connect the AC wires with the correct polarity. Connecting L and N wires reversely may cause a
short-circuit to the utility when several C3 MPPT / C3+MPPT are installed in parallel.
CAUTION: Appliances such as air conditioners require at least 2 to 3 minutes to restart since they need time to
balance refrigerant gases inside their circuits.
connected appliances could be damaged. In order to prevent this kind of damage, please check if the air
conditioner is equipped with a time-delay function before installation. If not, C3 MPPT / C3+MPPT will trigger an
overload fault and cut off the output to protect your appliance with yet a risk of damage to the air conditioner.

2-6. PV Connection

CAUTION: Before connecting C3 MPPT / C3+ MPPT to photovoltaic modules, please install
separately a DC circuit breaker between C3 MPPT / C3+ MPPT and photovoltaic modules.
WARNING! All wiring must be performed by qualified personnel.
WARNING! It is very important for the system's safety and an efficient operation to use the
appropriate cable for the PV module connection. In order to reduce the risk of injury, please use the
proper recommended cable size as indicated below.
Model
C3 MPPT 1000-24
C3 MPPT 1000-48
C3+ MPPT from
2000 to 5000VA
PV Module Selection:
When selecting the proper photovoltaic modules, please make sure you consider the parameters below:
1. Check the circuit Voltage (Voc) of the photovoltaic modules without exceeding the maximum
photovoltaic array open circuit voltage of C3 MPPT / C3+MPPT.
2. The open circuit Voltage (Voc) of the photovoltaic modules should be higher than the minimum
battery voltage.
Solar Charging Mode
INVERTER MODEL
Max. PV Array Open Circuit Voltage
PV Array MPPT Voltage Range
Min. battery voltage for PV charge
Please follow the steps below to implement the photovoltaic module
connection:
1. Remove the insulation sleeve 10 mm for the positive and negative
conductors.
2. Check the correct polarity of the connection cable from the photovoltaic
modules and photovoltaic input connectors. Then, connect the positive
pole (+) of the connection cable to the positive pole (+) of the photovoltaic
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Should a power shortage occur with a quick recovery, the
Typical Amperage
25A
18A
60A
C3 MPPT
1000-24
75Vdc max
30~66Vdc
17Vdc
Cable Size
12 AWG 4 mm²
14 AWG 4 mm²
8 AWG 10 mm²
C3 MPPT
C3 MPPT
2000-24
1000-48
3000-24
102Vdc max
60~88Vdc 30~115Vdc
34Vdc 17Vdc
Torque
1.2~1.6 Nm
1.2~1.6 Nm
1.4~1.6 Nm
C3 MPPT
2000-48
3000-48
4000-48
5000-48
145Vdc
60~115Vdc
34Vdc
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