Ac Wire Size And Overcurrent Protection; Table 4, Minimum Wire Size To Circuit-Breaker Size - Magnum Energy MM Series Installation And Operation Manual

2.0 Installation
The AC wires inside the AC compartment are #16 AWG with a tem-
perature rating of 105° C, all AC connections should be made using an
approved connector for your application (i.e. split bolt, twist-on wire
connectors, etc.). Ensure the wire connectors used are rated for the
size and number of wires you are connecting.
After connecting the wires together, gently pull on the wires to ensure
they are securely held together. In a proper connection, no bare wire
should be exposed.
Note: Per UL certification, nonmetallic-sheathed cable (i.e.
Romex™) or a SO flexible cord with listed strain relief's are
allowed to be used to connect to the inverter; conduit connec-
tions are not allowed.
After all AC wiring in the inverter is complete, prior to reattaching the
AC access cover, review all AC wiring to ensure all connections are
correct and secure.

AC Wire Size and Overcurrent Protection

The AC input and output wiring must be sized
electrical safety code requirements
safely handle the inverter's
the proper AC wire sizes, the inverter's AC input (unless you are
using a flexible cord) and output wires are required to be protected
against overcurrent and have a means to disconnect the AC circuits.
Overcurrent protection must be provided by fuses or circuit-breakers
and must be properly sized and rated for the wire they are protecting
and the appliances being powered.
An external disconnect device is required for both the AC input and
AC output wiring. Most inverter's that are "hardwired" use a service/
distribution panel wired to the inverter's input (main panel) and a
dedicated panel between the inverter's output wiring and the AC
loads (sub-panel). These systems use the circuit breakers provided in
the panels as the overcurrent protection and the AC disconnect. If
fuses are used, then separate AC disconnect switches will be needed.
Based on information from the NEC, Table 4 provides the minimum
AC wire size and the suggested breaker size based on the inverter's
model. However, larger wire size may be required because of voltage
drop. The AC wire sizes provided in this table assume using only
copper wire and a temperature rating of 75° C or higher. A minimum
of #14 AWG is required for all AC wiring.

Table 4, Minimum Wire Size to Circuit-breaker Size

Inverter
Model Input
Breaker
MM612 7 amps
MM612G 7 amps
MM612AE 8 amps
MM1212 16 amps
MM1212AE 16 amps
18
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to ensure the wires ability to
maximum load current. After determining
AC Input
Minimum Suggested
Wire Size Breaker Size
#14 AWG 10 amps
#14 AWG 10 amps
#14 AWG 10 amps
#12 AWG 20 amps
#12 AWG 20 amps
http://www.wholesalesolar.com/inverters.html
per the NEC and
AC Output
Output Minimum Suggested
Breaker Wire Size Breaker Size
7 amps #14 AWG 10 amps
7 amps #14 AWG 10 amps
7 amps #14 AWG 10 amps
12 amps #14 AWG 15 amps
12 amps #14 AWG 15 amps
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