Blue Sea Systems 7521 P12 Battery Charger - 12V DC 25A - Manual (Page 4)

Specifications are subject to change. See bluesea.com/P12 for current information.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
Refers to a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Refers to a potentially hazardous situation which, if not avoided, may result in injury.
WARNING
The P12 Battery Charger should be installed by a qualified marine electrician. Improper installation can result in electrical shock which may
cause serious injury or death. To reduce the risk of electrical shock, mount vertically in a dry, well ventilated location. Charge these battery
types: Flooded, AGM, Gel, or TPPL Lead Acid batteries. Must consult battery manufacturer specifications for other battery types to
avoid damage.
CAUTION
Before beginning electrical installation, read the instruction manual. Disconnect all AC and DC power sources. Do not make final connections
to the batteries until DC connections on the charger are made and verified. Do not make or break electrical connections to batteries while
charging or for up to 30 minutes after charging. Other than parts accessed under the termination cover, there are no user serviceable parts
within the battery charger enclosure. Contact Blue Sea Systems for servicing.
GROUNDING PRECAUTIONS
Marine battery chargers and inverters have two grounding connections, one from the AC system and one from the DC system. ABYC requires
the AC grounding system to be connected to the DC grounding system through the distribution systems. Additionally, the chargers make
connections to both systems. It is very important the systems be connected properly before the charger is installed. Otherwise the charger
grounding system may become the sole connection between AC and DC ground and it may not be sized large enough to provide system wide
safety function. The AC grounding conductor is the conductor with green, or green with yellow stripe included in the AC power cable and should
be sized the same as the power and neutral conductors (see Table C page 5 for AC wire color). This will connect to the right most terminal in
the AC connection block. There is also chassis connection terminal for a DC safety grounding wire. The DC safety ground should be green or
marked green and sized equal to, or one wire size smaller, than the DC charge wires.
READ AND SAVE THESE INSTRUCTIONS
Serial No. xxxxxxxxxxx
Line Neutral Ground − NEG Battery Bus
+ POS Battery 1
+ POS Battery 2
+ POS Battery 3
AC Input
Max.Torque 20 in-lb (2.25 Nm)
DC Output
Max.Torque 75 in-lb (8.47 Nm)
AGC® 10A AC Fuse
DC Safety Ground
M4 x 10
M3 x 25mm M3 x 30mm SAFETY
GROUND
Warnings
Serial
Number
Specifications
Terminations
Display
2
P12
7521 AND 7522 BATTERY CHARGERS