E) A.c. Input Wiring - NewMar PT-24-45W Bb8Db2Cc8C9B8A4Bb2Bbe763F

Phase Three
Battery Charger
+ +
B B
A A
T T
T T
1 2
AC Input
*
* Per ABYC A-20: A d.c. chassis grounding conductor shall be connected from the case of the bat-
tery 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 conductor and not less than 16 AWG.
bank, if necessary, however; jumping unused banks will reduce
heat dissipation per diode assembly and will also improve load
regulations and reliability. Jumper should be same wire size as
charging leads.
It is recommended that D.C. wiring from the charger to the
batteries be as direct as possible. Line voltage loss and electronic
noise interference of sensitive electronics are possible if the
charging leads are routed through a central electrical distribution
panel. Any elaborate wiring configurations are best left to a
qualified electrician.
ENSURE THAT LEADS ARE PROPERLY FUSED AT THE BATTERY.
(REFER TO ABYC RECOMMENDATIONS. SEE REFERENCE
APPENDIX AT THE END OF THIS MANUAL FOR ABYC CONTACT
INFORMATION.)
Ensure that your connections are tight and that correct polarity is
carefully observed at all times. The battery posts should be free of
any rust or corrosion.
CAUTION: SHORTING THE (+) AND (-) OUTPUTS (WHEN THE
CHARGER IS ON) OR REVERSE POLARITY BATTERY CONNECTION
(WHETHER OR NOT THE CHARGER IS ON) MAY CAUSE CHARGER
FAILURE. THE POSITIVE (+) TERMINAL MUST BE WIRED TO THE
POSITIVE POST OF THE BATTERY AND THE NEGATIVE OR COMMON
6
P.O. Box 1306, Newport Beach, California 92663 • Phone: 714-751-0488 • Fax: 714-957-1621 • E-Mail: techservice@newmarpower.com
FIGURE 2: Wiring With Battery Switch
House Bank 1
House Bank 2
–
+
C
B
O
A
M
T
M
T
O
3 N
T +
P
-
Master
Battery Switch
+
-
+
-
Gen Bank
(-) TERMINAL TO THE NEGATIVE POST OF THE BATTERY OR
COMMON BUS. DOUBLE-CHECK D.C. WIRING BEFORE ATTACHING
TO CHARGER OUTPUT TERMINALS.
CAUTION: Do not attempt to increase battery bank capacity by
splitting the output of one of the banks with a diode-type battery
isolator. Undercharging may occur on that output bank, as a result.
A note about the D.C. fuse: The internal wiring of the Phase
Three charger is protected against dangerous overheating in the
event of an internal short, or reverse polarity hook-up. The fuse
can be replaced. If this fuse blows the unit must be returned to
NEWMAR or a qualified electronic technician for repair. (See the
TROUBLESHOOTING section of this manual.)

E) A.C. Input Wiring

Models PT-24-45W, PT-24-60W, PT-24-95W, and PT-32-70W are
designed to operate on 230V A.C., 50/60 Hz input only. Model PT-
32-25W is designed to operate on 115V A.C., 50/60 Hz input only.
Ensure that the model you have is compatible with the available
A.C. power.
All models are designed to be hard wired in to the ship's ac system
– see recommended input circuit breaker size chart on next page.
www.newmarpower.com
Optional Temperature Probe - See page 10
for installation information. Use provided
cable clamps to secure probe cable
+ Buss
- Buss
Note: This diagram does not
illustrate a complete system. Refer
to ABYC standards E-11) AC & DC
electrical system on boats
IMPORTANT: Install fuses at batteries per
ABYC recommendations.