Ac Components; Ac Input For Single Ac Line Models; Ac Input For Dual Ac Line Models - Xantrex Freedom SW 815-3012 Installation Manual

AC Components

NOTE: Unless otherwise referenced specifically by product name, the
components refer to all models of Freedom SW inverter/chargers.

AC Input for Single AC Line Models

AC input (to a single AC line model such as Freedom SW 2012 inverter/
charger) can be supplied from a single-phase 120-volt 60-Hz AC source
such as the utility grid (power company), a generator, or the output of a
transfer switch.
97-0020-01-01

AC Input for Dual AC Line Models

AC inputs (to a dual AC line model such as Freedom SW 3012 inverter/
charger) can be supplied from a split-phase or dual-input AC source such as
the utility grid (power company), a generator, or the output of a transfer
switch. The Freedom SW can be operated from the following types of 120
volt 60 Hz AC sources:
• Split phase: This source type has two lines, one neutral, and one
ground. The two 120 volts AC lines are 180 degrees out of phase with
each other, so that the two voltages total to 240 volts AC line to line.
The voltage between each line and neutral is still 120 volts AC, and the
voltage between the neutral and ground is approximately zero.
Because the two lines are out of phase, the currents from each line
subtract in the neutral, and the neutral current will be approximately
zero if the loads are equal. For example, if Line 1 is supplying 20 amps
and Line 2 is supplying 15 amps, the current in the neutral will be
5 amps.
• Dual input: This source type has two line inputs, one neutral, and one
ground. Unlike the split-phase type, the two lines are in phase (not out
of phase), and must come from the same source. The voltage between
the two lines is zero. The voltage between each line and the neutral is
120 volts AC, and the voltage between the neutral and ground is
approximately zero.
Because the two lines are in phase, the currents from each line add
together in the neutral. For example, if Line 1 is supplying 20 amps
and Line 2 is supplying 15 amps, the current in the neutral will be
35 amps.
Planning Preparations
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