Ac Output Neutral Bonding; Ac Grounding; Dc Cabling - Xantrex Freedom X 1200 120VAC Owner's Manual

Freedom X Owners Guide.book Page 13 Wednesday, May 11, 2016 10:32 AM

AC Output Neutral Bonding

The neutral conductor of the Freedom X's AC output circuit (that is,
AC Output Neutral) is automatically connected to the safety ground
during inverter operation. When AC utility power is present this
connection is not present, so that the utility neutral (that is, AC
Input Neutral) is only connected to utility ground at your source.
This conforms to the National Electrical Code (NEC), which
requires that separately derived AC sources (such as inverters and
generators) have their neutral conductors tied to ground in the same
way that the neutral conductor from the utility is tied to ground in
only one place. Check the regulations for your specific application
to ensure that the installation will comply with the necessary
requirements. In other words, the AC Input Neutral and Output
Neutral must be isolated from each other.

AC Grounding

As per UL458 SA29.5, for all permanently connected marine
inverters: The Freedom X should be connected to a grounded,
metal, permanent wiring system. Also, make sure that an AC
ground wire is connected to the AC ground terminal on the unit. Do
not just connect the line and neutral wires.
All connections to the unit should comply with all local codes and
ordinances.
975-0767-01-01

DC Cabling

This includes all the cables and connectors between the batteries,
the DC disconnect and over-current protection device, and the
Freedom X. Most mobile installations require multi-strand insulated
cables for flexibility and durability in high vibration environments
and require disconnects and over-current devices. Electrical wiring
sizes in North America are indicated by AWG notation. In other
parts of the world, the metric system is used. Under the AWG
standard, a larger gauge number indicates a smaller wire diameter.
Wire size is usually marked on the larger sized cables. Table 2
specifies the minimum recommended DC cable size and maximum
fuse size for the Freedom X. The DC cables must be copper and
must be rated 75 °C minimum. The cables should be terminated
with lugs that fit the DC stud terminals snugly (
Table 2 Recommended Cable and Fuse Sizes
Cable Length:
Battery to Inverter
Inverter (one way)
Less than 5 feet 
Freedom X 120VAC
(1.5 meters)
NOTE: It is not recommended using a cable longer than 5 feet (1.5 meters) in each
direction. North American cable sizes above are based on the US National Electrical
Code Table 310.17 - 75 °C cables, assuming an ambient temperature of 30 °C cables.
Basic Installation Procedures
" hole size).
5
/
16
Maximum
Minimum battery Fuse
Cable Size Size
No. 2 AWG 150 A DC
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