Preparing for Installation
975-0402-01-01 2–11
This guide for use by qualified installers only
a minimum of 75C, and sized based on the AC input current
to the charger (see Appendix A) and on the value of
overcurrent protection provided.
For example, in US NEC, you may use a 14 AWG wire with
a 15 A breaker for up to 12 A continuous current (or 12 AWG
for a 20 A breaker for up to 16 A continuous current) or for
230 Vac application, you may be able to use either a 2.5mm2
wire with a 16 A breaker or use 1.5 mm2 wire with a 10 A
breaker. Note that every jurisdiction will have different
requirements as will each application, so research the
regulations for your local jurisdiction to determine which
wire size and type is correct based on the maximum AC input
current marked on the chargers and given in Appendix A.
Wire Type s:
• for marine applications, the United States American
Yachting and Boating Council (ABYC) requires stranded
wire, which is more robust than solid wire when exposed
to vibration
• for RV applications, the United States National Electrical
Code (NEC) allows solid wire in multi-conductor cable,
however, stranded wire is also acceptable which will
withstand vibration better.
The AC wiring supplying the Truecharge™ 2 Battery
Charger must be protected by the correct size and type of
branch-circuit rated fuse or breaker to meet the applicable
installation codes. If a fuse is used instead of a breaker, a
correctly rated disconnect switch is required ahead of the fuse
so that power can be turned off, allowing fuse replacement
and safe maintenance of other equipment on the mains
circuit.