Specifications - Blue Sea Systems 7531 User Manual

P12 Battery Charger Over view
Charging and
Alert indicators
Rugged, finned
cast aluminum case
AC strain
relief and
insulating cover.
AC input terminals
under cover.
4
Specifications are subject to change. See bluesea.com/P12 for current information.
P12
7531 AND 7532 BATTE RY C HAR GER S
Mounting holes
Clearance for:
M6, 1/4", or #12
mounting hardware
NOTE: Mounting holes screw
centers are not symmetrical.
Please see dimension drawing
on page 6
Fan vent
Graphic LCD Display
Screen selection
buttons
Charging stage
indicators
DC output
DC strain
relief clamp
Termination
cover latches
Termination
insulating
cover

Specifications

7531
Total Output Current (continuous) 25A
Input AC Current 4.5A @ 115V AC / 2.25A @ 230V AC
Nominal Output Voltage 12V DC
Output Connections 3 positive, 1 negative
Universal AC Input Voltage 115–230V AC
Input Frequency Range 50–60 Hz
Typical Float Voltage 13.5V DC
Output Voltage Accuracy 0.05V DC
Minimum Operating Temperature −20°C (−4°F)
Full Output Maximum Temperature 45°C (113°F)
Minimum Storage Temperature −30°C (−22°F)
Maximum Storage Temperature 80°C (176°F)
Warranty 5 Year
Battery Types* Flooded, Gel, AGM, TPPL
60Ah Minimum,
Example: 1 x Group 24
Recommended for Battery Bank Sizes**
330Ah Maximum, Example: 3 x Group 31
* Consult battery manufacturer specifications for other battery types to avoid damage. Do not mix battery types.
** Battery bank sizes are tested to California Energy Commission compliance (CEC). Larger and smaller size banks could charge well, but consume slightly
more power over the charging cycle.
Regulatory
Designed and constructed for compliance to UL-1236 Marine, CSA 22.2 No. 107.2, and ABYC A-31 standards.
CE Marked
Ignition Protection per ISO 8846 and SAE J1171. Meets FCC Part 15, Class B requirements. To view all regulatory specifications visit www.bluesea.com/P12.
California Energy Commission (CEC) compliant. The energy saving feature may be disabled by the user following the steps on page 14 of this manual.
Table A: Minimum Recommended Wire Size*
Conductor Length in feet (meters) Charger Rating
25A
6 ft (1.83 meters) 14 AWG (2.5mm²) 8 AWG (10mm²)
10 ft (3.05 meters) 12 AWG (4mm²) 8 AWG (10mm²)
15 ft (4.57 meters) 10 AWG (6mm²) 6 AWG (16mm²)
20 ft (6.09 meters) 8 AWG (10mm²) 6 AWG (16mm²)
25 ft (7.62 meters) 6 AWG (16mm²) 4 AWG (25mm²)
Recommended Battery Fuse
30A
* Based on 3% voltage drop. If fast charge recovery is important, use larger wire. Double the conductor
length entry to get a 1.5% drop, triple the conductor length to get a 1% voltage drop.
Table B: Recommended DC Circuit Protection
Appropriate Fuses and Fuse Holders Charger Rating
Fuse Type Fuse Holder 25A
MRBF Terminal Fuses 5191 Terminal Fuse Block 5175 (30A Fuse) 5178 (60A Fuse)
AMI®/MIDI® Fuses 7720 Safety Fuse Block 5250 (30A Fuse) 5253 (60A Fuse)
Table C: Typical AC Regional Wire Colors
Region Line Neutral Ground (Earth)
North America Black White
Europe Brown Blue Green-Yellow
Australia/ New Zealand Brown or Red Blue or Black Green-Yellow
7531 AND 7532 BATTERY CHARGERS
7532
40A
7.5A @ 115V AC / 3.75A @ 230V AC
12V DC
3 positive, 1 negative
115–230V AC
50–60 Hz
13.5V DC
0.05V DC
−20°C (−4°F)
45°C (113°F)
−30°C (−22°F)
80°C (176°F)
5 Year
Flooded, Gel, AGM, TPPL
(Thin Plate Pure Lead) (Thin Plate Pure Lead)
60Ah Minimum,
Example: 1 x Group 24
440Ah Maximum, Example: 4 x Group 31
Table D: AC Wire - Circuit Protection Selection Chart
7531 7532
(25A)
40A Input Watts 450 750
120V AC Application 4.5A @ 100V AC 7.5A @ 100V AC
Minimum AC Wire Size 18 AWG (0.75mm²) 16 AWG (1.5mm²)
Circuit Breaker 10A 15A
230V AC Application* 2.25A @ 200V AC 3.75A @ 200V AC
Minimum Wire Size 18 AWG (0.75mm²) 18 AWG (0.75mm²)
60A Circuit Breaker 5A – 10A 5A – 10A
* Typical of Europe
Table E: Default Voltages by Battery Type
Batteries should match in chemistry, although many AGM's and flooded batteries are
compatible. Based on 25°C (77°F)
40A
Type Absorb Volts
FLA – Flooded Lead Acid 14.5V
AGM – Absorbed Glass Mat 14.35V
Gel – Gelled Electrolyte 14.1V
TPPL – Thin Plate Pure Lead 14.7V
User Adjustable 12.5V 12.5V
Default
¹
Taken from Odyssey Tech Notes, Northstar operation Manual
Green
Specifications are subject to change. See bluesea.com/P12 for current information.
P12
(40A)
Float Volts
13.5V
13.3V
13.5V
¹
13.6V
Default
5