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FIGURE 2: Wiring With Battery Switch
*
*Per ABYC A-20: A d.c.
chassis grounding conductor
shall be connected from the
case of the battery charger to
the engine negative terminal or
its bus, and must not be more
than one size under that
required for the d.c. current-
carrying conductors, and not
less than 16 AWG.
E) Multiple Unit Parallel Wiring
If increased power or system redundancy is required, a second charger may be wired in
parallel. The unit is diode protected so it will not be damaged by feedback from the second
unit and current limiting will prevent overloading in the case of a failure of one of the units.
Observe the following guidelines when wiring a parallel unit.
1) Use only another identical charger model (PT-70a or PT-24-40). Do not use
a different charger model, either from NEWMAR or from another manufacturer.
2) Wire length and gauge and wire lug size must be identical for each charger to
ensure proper load sharing.
3) Wire gauge for each charger must be the same used as if a single charger were
wired into the system by itself.
F) a.c. Input Wiring
For the convenience of the installer an a.c. power cord has been factory installed. It is a
three-conductor stranded type, 16 AWG. The cord is terminated with a plug suitable for
standard USA outlets but uses European standard color coding of conductors.
a.c. input is "universal" and operates in a range of 90-264 VAC, 47-63 Hz. No switch setting
8
U.S.A. HEADQUARTERS
P.O. Box 1306, Newport Beach, CA 92663
Phone: 714-751-0488 Fax: 714-957-1621
E-Mail: sales@newmarpower.com
E
P
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LECTRONIC
OWER
RODUCTS
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OMMUNICATION
AVIGATION
www.newmarpower.com
Note: This diagram does not
illustrate a complete system.
Refer to ABYC Standards E-8)
AC Electrical Systems on Boats,
and E-9) DC Electrical Systems
EURO WAREHOUSE
Phone:+31-35-603-2494
Fax:+31-35-603-2149
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