Battery Management System - Regal 52 SC Owner's Manual

The battery management system is an important ingredi-
ent of the yacht's 12 volt direct current (DC) system. The
battery management panel consists of 3 universal battery
switches, 2 VSR's and 2 banks of DC breakers plus the
wiring itself. Note the breaker sizes on the diagram below.
Should a replacement become necessary the breaker am-
perage is listed with each breaker.
In some cases the breaker protects a component; in other
cases it may also control a sub-panel or parts of a sub-
panel.
VSR
VOLTAGE SENSITIVE
RELAY MODULE
IGNITION PROTECTED
125 AMP
DUAL SENSE
CUT IN 13.7V DC
CUT OUT 12.8V DC
ELECTRONICS
DASH MAIN CABIN MAIN
80AMP 80AMP
CABLE OIL
MASTER CHANGER
20AMP 20AMP

BATTERY MANAGEMENT SYSTEM

BATTERY MANAGEMENT SYSTEM
C
OFF OFF
D
ACC. TENDER
WINCH
90AMP 20AMP 60AMP
HATCH FWD BILGE MID BILGE
LIFT PUMP PUMP
10AMP
20AMP 10AMP
The universal battery switch marked port is part of the
port engine cranking battery circuit. The universal battery
switch marked starboard is part of the starboard engine
battery circuit. Likewise, the switch marked house is part
of the "house" battery circuit. The port VSR is connected
to both the port cranking battery and the house battery.
The starboard VSR is connected to the starboard crank-
ing battery and the house battery.
A A
OFF
B
GANGWAY
TENDER
LIFT
30AMP
30AMP
HIGH WATER
AFT BILGE
PUMP ALARM
10AMP 5AMP
28
Chapter 4
VOLTAGE SENSITIVE
B
CHARGER CHARGER CHARGER
80AMP 80AMP
80AMP
STEREO SHOWER SHOWER
MEMORY PUMP PUMP
10AMP 5AMP 5AMP
2
1
VSR
RELAY MODULE
IGNITION PROTECTED
125 AMP
DUAL SENSE
CUT IN 13.7V DC
CUT OUT 12.8V DC
WINDLASS
150AMP
FWD. SHOWER
PUMP
5AMP
3