Battery Connection - MPP Solar LV 6548 User Manual

Install the unit by screwing four screws. It's recommended to use M4 or M5 screws.

Battery Connection

CAUTION: For safety operation and regulation compliance, it's requested to install a separate DC over-current
protector or disconnect device between battery and inverter. It may not be requested to have a disconnect
device in some applications, however, it's still requested to have over-current protection installed. Please refer
to typical amperage in below table as required fuse or breaker size.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use
appropriate cable for battery connection. To reduce risk of injury, please use the
proper recommended cable and terminal size as below.
Recommended battery cable and terminal size:
Typical
Model
Amperage
LV 6548 153A
Please follow below steps to implement battery connection:
1. Assemble battery ring terminal based on recommended battery cable and terminal size.
2. Fix two cable glands into positive and negative terminals.
3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the nuts are
tightened with torque of 5 Nm. Make sure polarity at both the battery and the inverter/charge is correctly
connected and 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!!
terminal. Otherwise, overheating may occur.
CAUTION!!
Battery
Wire Size
capacity
250AH 1*2/0AWG
Do not place anything between the flat part of the inverter terminal and the ring
Do not apply anti-oxidant substance on the terminals before terminals are connected
Ring Terminal
Cable
Dimensions
2
mm
D (mm)
67 8.4
5
Ring terminal:
Torque
value
L (mm)
47 5 Nm