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Ground / Chassis
Boat grounding
AC circuit breaker
Any outputs not being used should be linked
across to one that is, this is not a requirement for
these new models but is good practice as it helps
spread loads etc.
DC - Fuse selection, as per the
diagram, each positive output from the
charger to the battery must be fused.
Choose a fuse that is about 20% higher
current rating than the maximum rating
of the charger, then round it up.
Remember, this fuse is primarily
protecting the cables and not the
product. E.g. a 20A charger would have
about a 25A fuse. A 60A charger about
a 75A fuse. A full range of fuses and
fuse holders are available from Sterling.
Wiring, using ring or captive spade connections and a proper crimping tool attach the AC cables Live ( line ) Neutral and Earth / Ground. Repeat
the procedure for the breaker side of the install, support the cable every 18 inches / 0.5 m and protect from sharp edges when passing through
Europe
AC cable size ( mm2 ) for cable length up to 15 m
Model
110 volt
fuse/breaker
PCU1210
3 core 0.75
mm2
PCU1220
3 core 0.75
mm2
PCU1230
3 core 1.5
mm2
PCU1240
3 core 1.5
mm2
PCU1250
3 core 1.5
mm2
PCU1260
3 core 1.5
mm2
PCU2420
3 core 1.5
mm2
PCU2430
3 core 1.5
mm2
PCU3620
3 core 1.5
mm2
PCU4815
3 core 1.5
mm2
DC installation (output from charger)
Choosing cable. unlike AC conductors, DC is very sensitive to voltage drop.
The longer the cable runs the larger the cable thickness needs to be. Ensure
only quality fire retardant cable is used.
Europe
DC Charge cable size ( mm2 ) for cable length
Model
1m
2m
PCU1210
2.5
4
mm2
mm2
PCU1220
4
10
mm2
mm2
PCU1230
6
6
mm2
mm2
PCU1240
10
16
mm2
mm2
PCU1250
10
25
mm2
mm2
PCU1260
16
25
mm2
mm2
PCU2420
4
10
mm2
mm2
PCU2430
6
6
mm2
mm2
PCU3620
4
10
mm2
mm2
PCU4815
4
10
mm2
mm2
GLOBAL AC Input & Active Power Factor Correction
Progressive DIGITAL software control Charger / Powerpack
www.sterling-power.com
AC Power
Auto Temp Control
Active PFC
Multi Speed Fan
AUTO CONSERVATION MODES
CHARGER MODE
System self test
OK
Fault
SETUP
RoHS
ENTER
compliant
High Voltage AC
DC fuse
20% larger
amperage than
charger output
_
12V/24V/36V/48V bank
AC installation (input to charger)
bulkheads and all other openings as per any standards which apply to the installation.
230 volt fuse/breaker
6 A
3 core 0.75
mm2
8 A
3 core 0.75
mm2
11 A
3 core
1.5
mm2
14 A
3 core 1.5
mm2
16 A
3 core 1.5
mm2
16 A
3 core 1.5
mm2
14 A
3 core 1.5
mm2
16 A
3 core 1.5
mm2
16 A
3 core 1.5
mm2
16 A
3 core 1.5
mm2
3m
4m
5m
6
10
10
mm2
mm2
mm2
16
16
25
mm2
mm2
mm2
25
35
50
mm2
mm2
mm2
25
35
50
mm2
mm2
mm2
35
50
50
mm2
mm2
mm2
50
50
n/a
mm2
mm2
16
16
25
mm2
mm2
mm2
25
35
50
mm2
mm2
mm2
16
16
25
mm2
mm2
mm2
16
16
25
mm2
mm2
mm2
Pro
Charge U
LTRA
Sterling Power
CEC
www.sterling-power-usa.com
approved
Volts
Amps
100%
Safety Certified by: TUV
0%
Built and tested to
1 2 3
Charger Output
UL 1236 SB
Stand-by
Battery Health Program
CSA C22.2-107.2
Absorption
Float
Fast Charge
De-sulphation
CHARGE INFORMATION
Battery Type
Open lead acid
DC Output Fault
Sealed lead acid
DC Low Voltage
A.G.M
DC High Voltage Trip
High Charger temp trip
GEL
Lithium (LiFePO
)*
Check Fan
4
Calcium /
Custom
*Lithium must be used in conjunction
with a lithium balancing system.
WARNING
Low Voltage DC
DC fuse
20% larger
amperage than
charger output
_
+
+
12V/24V/36V/48V bank
USA
AC cable size ( AGM ) for cable length up to 50ft
Model
110 volt
4 A
PCU1210
3 core 16
6 A
PCU1220
3 core 16
7 A
PCU1230
3 core 14
7 A
PCU1240
3 core 14
8 A
PCU1250
3 core 12
8 A
PCU1260
3 core 12
7 A
PCU2420
3 core 14
10 A
PCU2430
3 core 12
10 A
PCU3620
3 core 12
10 A
PCU4815
3 core 12
IMPORTANT
The closer to the batteries you fit the charger the better. Not only do you save
expensive cable you also get better performance from the charger. The cable
should be properly rated to 105 deg C fire resistant. Do not use solid cable or
speaker wire.
USA
DC Charge cable size ( AWG ) for cable length
6m
Model
5 ft
16
PCU1210
16
mm2
25
PCU1220
14
mm2
50
PCU1230
12
mm2
50
PCU1240
10
mm2
n/a
PCU1250
8
n/a
PCU1260
8
25
PCU2420
14
mm2
50
PCU2430
12
mm2
25
PCU3620
14
mm2
25
PCU4815
16
mm2
Ground / bonding / earthing.
This is extremely important and often
overlooked there are, in affect, 3 grounds.
1) The earth wire (AC input, the ground).
2) The chassis / bonding ground (going to
a vehicle body / boats bonding system,
the bolt on the side of the charger)
3) The DC negative.
In most installations all these will end up at
the same point. The AC power source
should be connect to the boat/vehicle
chassis (for safety). The chassis earth will
also go there and the DC negative should
also go there. In affect, bonding the total
system together ensuring any fault to the
chassis will blow a fuse. This could vary
for steel/aluminium boats.
DC fuse
20% larger
amperage than
charger output
_
+
12V/24V/36V/48V bank
fuse/breaker
230 volt fuse/breaker
6 A
3 core 18
AWG
8 A
3 core 18
AWG
11 A
3 core 16
AWG
14 A
3 core 16
AWG
16 A
3 core 14
AWG
16 A
3 core 14
AWG
14 A
3 core 16
AWG
16 A
3 core 12
AWG
16 A
3 core 14
AWG
16 A
3 core 14
AWG
10 ft
15 ft
20 ft
14
12
10
AWG
AWG
AWG
10
10
8
AWG
AWG
AWG
10
8
6
AWG
AWG
AWG
8
6
6
AWG
AWG
AWG
6
6
6
AWG
AWG
AWG
6
4
4
AWG
AWG
AWG
10
10
8
AWG
AWG
AWG
10
8
6
AWG
AWG
AWG
10
10
8
AWG
AWG
AWG
14
12
8
AWG
AWG
AWG
4 A
AWG
6 A
AWG
7 A
AWG
7 A
AWG
8 A
AWG
8 A
AWG
7 A
AWG
8 A
AWG
8 A
AWG
8 A
AWG
25 ft
30 ft
10
10
AWG
AWG
AWG
6
6
AWG
AWG
AWG
6
4
AWG
AWG
AWG
4
4
AWG
AWG
AWG
4
2
AWG
AWG
AWG
2
2
AWG
AWG
AWG
6
6
AWG
AWG
AWG
6
4
AWG
AWG
AWG
6
6
AWG
AWG
AWG
6
6
AWG
AWG
AWG
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