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When using the off grid function, please add off grid AC breaker in off grid output
cable to ensure safety.
Note: The absence of AC breaker on back-up side will lead to inverter damage if an
electrical short circuit happens on back-up side.
Step1. Make BACK-UP wires like Grid wires.
Requirements for BACK-UP load
WARNING!
Make sure the BACK-UP load power rating is within BACK-UP output rating, otherwise the
inverter will shutdown with an “over load” warning.
When an “over load” is appeared, adjust the load power to make sure it is within the
BACK-UP output power range, then turn the inverter back on.
For the nonlinear load, please make sure the inrush power should be within the BACK-UP
output power range.
5.4 Battery Connection
Charging & discharging system of inverter is designed for high-voltage lithium battery.
Before choosing battery, please note the maximum voltage of battery cannot exceed 350V
and the rated voltage of battery cannot exceed 336V, and the battery communication should
be compatible with inverter.
Battery breaker
Before connecting to battery, please install a nonpolar DC breaker to make sure inverter can
be securely disconnected during maintenance.
Nominal voltage of DC breaker should be larger than maximum voltage of
battery
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