Samlexpower PSE-12125A, Owner'S Manual

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36 | SAMLEX AMERICA INC.
seCtIOn 9 | Installation
taping Battery cables together to Reduce inductance.
do not keep the battery cables far apart. In case it is not convenient to twist the cables,
keep them taped together to reduce their inductance. reduced inductance of the bat-
tery cables helps to reduce induced voltages. This reduces ripple in the battery cables
and improves performance and efficiency.
Ac SiDe connectionS
Preventing Paralleling of the Ac output
The Ac output of the inverter cannot be synchronised with another Ac source and
hence, it is not suitable for paralleling. The Ac output of the inverter should never be
connected directly to an electrical breaker panel / load center which is also fed from
utility power / generator. Such a connection may result in parallel operation of the
different power sources and the Ac power from the utility / generator will be fed back
into the inverter which will instantly damage the output section of the inverter and
may also pose a fire and safety hazard. If an electrical breaker panel / load center is fed
from an inverter and this panel is also required to be powered from additional alternate
Ac sources, the Ac power from all the Ac sources like the utility / generator / inverter
should first be fed to a manual selector switch and the output of the selector switch
should be connected to the electrical breaker panel / load center. A suitable Automatic
Transfer Switch may also be used, e.g. Samlex America Model STS-30.
To prevent possibility of paralleling and severe damage to the inverter, never use a
simple jumper cable with a male plug on both ends to connect the Ac output of the
inverter to a handy wall receptacle in the home / rV.
connecting to Multi-Wire Branch circuits
do not directly connect the hot side of the 120 VAc of the inverter model to the two
hot legs of the 120 / 240 VAc electrical breaker panel / load centre where multi-wire
(common neutral) branch circuit wiring method is used for distribution of Ac power.
This may lead to overloading / overheating of the neutral conductor and is a risk of fire.
A Split Phase Transformer (Isolated or Autotransformer) of suitable wattage rating (25%
more than the wattage rating of the inverter) with primary of 120 VAc and secondary of
120 / 240 VAc (Two 120 VAc split phases 180 degrees apart) should be used. The hot and
neutral of the 120 VAc output of the inverter should be fed to the primary of this trans-
former and the 2 hot outputs (120 VAc split phases) and the neutral from the secondary
of this transformer should be connected to the electrical breaker panel / load centre.
Ac output connections - PSe-12125A / PSe-12175A
These inverters use nEMA 5-15r receptacles (f, fig. 7.1) for connecting the Ac output to
devices and appliances fitted with a nEMA 5-15P plug. In these nEMA 5-15 r recepta-
cles, two rectangular slots are connected to the current-carrying conductors of the Ac
power source inside the inverter. The round slot is the “equipment grounding” connec-
tion and is internally connected to the metal chassis of the inverter.