DIY User Manual

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10-539-1 MN5048DIY REV -
MN5048DIY
User Manual
BAT +: Battery positive electrode BAT -: Battery negative electrode
Warnings:
① Mains input, AC output and PV array are all high voltage. So, before wiring,
be sure to disconnect the appropriate circuit breaker.
② Be very careful during DC wiring; do not close the circuit breaker during
wiring, and ensure that the “+” and “-” pole leads of each component are
connected properly; a circuit breaker must be installed at the battery input
terminals.
Refer to Section 2.2 on pg. 9 “Wiring Specifications and Circuit Breaker
Selection” to select a correct circuit breaker. Before wiring, be sure to
disconnect the circuit breaker to prevent strong electric sparks and avoid
battery short circuit; if the MNS Hybrid Inverter is used in an area with
frequent lightning, it is recommended to install an external surge
suppressors at the PV input terminal as well as the AC input and output.
The MNSPD300DC is the correct model for the PV input and the
MNSPD300AC for the AC input and output. Both sold separately
Step 4: Check if the wiring is correct and tight. In particular, check if the
battery polarity is reversed, if the PV input polarity is reversed and if the AC
input is properly connected.