Samlex America SA-300 - Manual (Page 9)

WARNING！
Do not combine the 12V model with 24V battery or the unit will
be destroyed immediately.
Operate with the inverter without a proper ground connection
may cause an electrical safety hazard.
Damage caused by reversed polarity is not covered by the
warranty. Ensure the power switch is in the OFF position
before putting the battery in.
3-3. AC Safety Grounding：
During AC wiring installation, AC input and output ground wires are
connected to the inverter. The AC input ground wire must be connected to
the incoming ground from AC utility source.
The AC output ground wire should go to the grounding point for your loads
( for example, a distribution panel ground bus ).
3-3-1. Neutral Grounding (GFCI’S):
110V models：The neutral conductor of the AC output circuit of the
Inverter is automatically connected to the safety ground during inverter
operation. This conforms to National Electrical Code requirements that
separately derived from AC sources (such as inverters and generators)
which have their neutral conductors tied to ground in the same way as
the neutral conductors from the utility tied to ground at the AC breaker
panel. For models configured with a transfer relay, while AC utility
power is present and the Inverter is in bypass mode, this connection
(the neutral of the Inverter’s AC output to input safety ground) is not
present so that the utility neutral is only connected to ground at your
breaker panel, as required. Samlex has tested the following GFCI-
properly when connected to the output of the Inverter.
WARNING！
Never connect the inverter’s output to the AC distribution grid,
such as the household AC wall outlet.
It will damage the Inverter.
7