Xantrex Technology Freedom SW 2000 user service AC Wiring, AC Output Neutral Bonding

Planning the Installation

AC Wiring

Definition AC wiring includes input wiring (all the wires and connectors between the AC source and the inverter/charger input) and output wiring (all the wires between the inverter/charger and the AC load panels, circuit breakers, and loads).

Type The type of wiring required varies according to the electrical codes or regulations applicable to your installation. For RV applications, this may be solid wire in multi-conductor cables, but stranded wire is required if single conductors are used. All wiring must be rated 90 °C or higher.

Size of AC Input Wiring Wire size must be coordinated with the overcurrent protection provided ahead of the wire involved, in accordance with the electrical codes or regulations applicable to your installation.

Therefore, the wiring used between the AC input circuit breaker and the inverter/charger input must be sized to match the input breaker rating.

Table 2 Input AC Wire Size

Breaker Size Used	30 A
Wire Size	10 AWG
Color Coding	L: black:
	N: white
	G: green

Size of AC Output Wiring Wire size must be coordinated with the current the wiring will carry. This current may be determined by the 20 A maximum inverter current, or by the pass-through current, which is determined by the overcurrent protection provided ahead of the Freedom SW 2000.

Size of Wiring Downstream of the AC Output Breaker The wiring used between the AC output breaker and your loads must be sized to match the output breaker.

AC Output Neutral Bonding	only.
The AC source must have its neutral conductor bonded to ground.	installers
Bonding system The Freedom SW 2000 provides a system that
automatically connects the neutral conductor of the inverter’s AC output
circuit to safety ground (“bonding” it) while the inverter/charger is	qualified
inverting, and disconnects it (“unbonding” it) when the inverter/charger is
connected to external AC power. This system is designed to conform to
installation codes that require AC sources such as inverters and generators
to have their neutral conductors tied to ground at the source of power in the	by
same way that the neutral conductor from the utility is tied to ground. These

same codes specify that the neutral can only be connected to ground in oneuse
place at any one time.	for
Suitability This automatic neutral-to-ground bonding system requires AC
	guide
input sources with bonded neutral. This will be the case in most situations:
in a utility feed, at an external AC hook-up, or a generator with a bonded	This
neutral. If not, have an electrician look into bonding the source’s neutral to
ground. See also “AC Input and Output Isolation” on page 20.

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