Ac Input/Output Connection - INFOSEC C3 MPPT User Manual

3. Connect as many battery packs as your installation requires. It is recommended to connect at least
a 100Ah capacity battery for 1-3KVA models and at least a 200Ah capacity battery for 4/5KVA
models.
4. Insert the ring terminal of the battery cable flatly into the battery connector of C3 MPPT / C3+ MPPT
and make sure the bolts are tightened with 2-3 Nm torque. Make sure polarity of both the battery
and C3 MPPT / C3+ MPPT is correctly connected and the ring terminals are tightly screwed to the
battery terminals.
WARNING: Shock Hazard
Installation must be performed with care due to high battery voltage in series.
CAUTION!!
ring terminal. Otherwise, overheating may occur.
CAUTION!!
connected tightly.
CAUTION!!
breaker/disconnector, make sure positive (+) is connected to positive (+) and negative
(-) to negative (-).

2-5. AC Input/Output Connection

CAUTION!! Before connecting C3 MPPT / C3+ MPPT to the AC input power source, please
install a separate AC breaker between C3 MPPT / C3+ MPPT and the AC input power source.
This will ensure C3 MPPT / C3+ MPPT can be securely disconnected during maintenance and fully
protected from an over current from the AC input. The recommended spec of the AC breaker is:
 10A for 1KVA,
 20A for 2KVA,
 32A for 3KVA,
 40A for 4KVA
 50A for 5KVA.
CAUTION!! There are two terminal blocks with "IN" and "OUT" markings. Please do NOT misconnect
the input and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It is very important for the system's safety and an efficient operation to use the
appropriate cables for the AC input connection. In order to reduce the risk of injury, please use the
proper recommended cable size as below. Use flexible cables.
Suggested cable requirement for AC wires
Model
1KVA
2KVA
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Diagram 8: connecting batteries to C3 MPPT / C3+MPPT
Do not place anything between the flat part of the inverter terminal and the
Do not apply anti-oxidant substance on the terminals before terminals are
Before making
Gauge
16 AWG
14 AWG
the final DC connection
2,5 mm²
2,5 mm²
or closing DC
Torque Value
0.5~ 0.6 Nm
0.8~ 1.0 Nm
9