Figure 11, Ac Wire Connections; Table 1, Recommended Minimum Ac Wire Sizes To Breaker/Fuse Size At 75° C - Trace Engineering PS Series Owner's Manual

Before making any AC connections, make sure that the inverter is disconnected from the battery (or
battery bank). Feed the wires through conduit fittings located on the left side or left bottom side of the
inverter. (Note: Conduit fittings must be purchased separately and are required by code to comply with
residential and commercial installations).
The NEC requires that disconnect switches be provided in the AC input and output wiring circuits. AC
circuit breakers in an AC load center can be used to meet this requirement. The wiring both in and out of
the inverter must also be protected from short circuits and overloads by a fuse or circuit breaker. Consult
the NEC or your local code for more information and for other wire sizes. Table 1 on page 19 gives
suggestions for wire sizing.

Figure 11, AC Wire Connections

The three neutral terminals are common to each other and can be used in any combination or order. It is
often easier to only connect one AC neutral wire to the inverter and make the other neutral connections at
a central point such as in the AC load center, etc. The extra output neutral is used if installing the optional
Branch Breaker Kit. Consult your local code for more information and acceptable wire sizes and
configurations.
Use Table 1, below, to determine the proper size wire you require for your installation. These
recommendations may not meet all local code or the NEC requirements, consult your applicable electrical
code for more information regarding acceptable fuse and cable sizes.
Table 1, Recommended Minimum AC Wire Sizes To Breaker/Fuse Size at 75° C
INVERTER MODEL
CAPABILITY
PS2512/PS2524
PS2212E/PS2524E
* The term "free air" is defined by the NEC as cabling that is not enclosed in conduit or a raceway. Cables
enclosed in raceways or conduits have substantially lower continuous current carrying ability due to
heating factors.
Copyright © Trace Engineering Company, Inc.
5916 - 195th Street N.E.
Arlington, WA 98223
AC GROUND OUT
AC HOT OUT
AC NEUTRAL OUT
FULL MAXIMUM
PASS-THRU FUSE/BREAKER
REQUIRED
50 amps 60 amps
30 amps 30 amps
Telephone: 360/435-8826
Fax: 360/435-2229
www.traceengineering.com
INSTALLATION
ACCESSORY INPUT
AC GROUND IN
AC HOT IN
AC NEUTRAL IN
CABLE SIZE
REQUIRED
IN CONDUIT
# 6 AWG (THHN)
# 10 AWG (THHN)
PS Series Inverter/Charger
Rev. D: November 23, 1999
CABLE SIZE
REQUIRED
IN "FREE AIR"*
# 8 AWG (THHN)
# 12 AWG (THHN)
Page
Part No. 3597
19