Blue Sea Systems Automobile Battery Charger PN 7712 Leaflet

The ML-Series Remote Battery Switch provides high-current carrying and switching under load. 

The Remote Battery Switch should be installed close to the battery banks to avoid voltage drop. 
Install a single pole double throw (SPDT) or single pole single throw (SPST) control switch in a convenient 

location near other electrical controls or companionway to allow quick access in the event of an emergency 

(see Illustration on reverse).*

•  an added level of safety that allows manual ON-OFF control with or without power

•  LOCK OFF for servicing the electrical system

PN 7712 / PN 7712B /

 

PN 7714 / PN 7714B

 

980010060 Rev.002

• Magnetic Latch (ML)—draws very low current (<13 mA in the ON state and <8 mA in the OFF state) and draws 

  moderate current for very short time when changing state

• Silver alloy contacts provide high reliability for switching live loads

• Manual control override knob provides an added level of safety allowing control with or without power, 

  and offering LOCKED OFF capability for servicing

• LED output to remotely indicate switch state 

• Tin-plated copper studs for maximum conductivity and corrosion resistance

• Label recesses for circuit identification

• PNs 7712 and 7714 include a Remote Control Switch PN 2155

Cranking Rating 

 

See Table Below 

See Table Below

Intermittent Rating  

 

See Table Below 

See Table Below

Continuous Rating  

 

See Table Below 

See Table Below

Amperage Operating Current  

When changing state <7A from Main  

When changing state <4A from Main

       

 

 

contacts returns to negative (blk) wire 

contacts returns to negative (blk) wire

       

 

 

In “ON” state 13mA, In “OFF” state 8mA  When “ON” 13mA, When “OFF” 8mA

Voltage Maximum Operating 

16.5V DC Max. 

32V DC Max.

Live Current Switching 

 

300A @ 12V DC—10,000 Cycles 

150A @ 24V DC—10,000 Cycles‡

Mechanical Endurance 

 

100,000 Cycles 

100,000 Cycles

Control Circuit Voltage 

 

9–16.5V DC   

8–32V DC

Terminal Stud Size 

 

3/8"-16 (M10)  

3/8"-16 (M10)

Maximum Terminal Stud Torque 

140 in-lb (15.5 N•m)  

140 in-lb (15.5 N•m)

Ring Terminal Size 

 

3/8", M10  

 

3/8", M10

Terminal Ring Diameter Clearance  1.18" (30.0mm)  

1.18" (30.0mm)

Regulatory Meets ISO 8846 and SAE J1171 external ignition protection requirements, Rated IP66

Action 

 

 

SPDT, ON-ON

Maximum Operating Amperage       20A @ 12V DC | 15A @ 24V DC

Seals             

 

Internal & External Gasket Panel Seal

Operating Temperature Range     -40°C to 85°C

Mounting Hole            

 

1.450"x 0.830" (36.00mm x 21.08mm)

LED Rating                 

 

100,000 hours 1/2 life, 20 mA @ 14V

Regulatory Meets ISO 8846 and SAE J1171 external ignition protection requirements, Rated IP67

Marine Electrical Products

7712

Tinned Wires

Yes

12V DC

SPDT, ON-ON

7712B

Tinned Wires

Yes

12V DC

-

7714

Tinned Wires

Yes

24V DC

SPDT, ON-ON

7714B

Tinned Wires

Yes

24V DC

-

To connect battery bank to load, 

or combine battery banks

With Override Knob in (REMOTE position), 

push button until latched (Push to Latch On).

To disconnect battery bank from 

load, or isolate battery banks that 

are connected

Rotate Override Knob to right to release button 

from Latch On mode (button pops up). Rotate 

Override Knob to left (REMOTE position). 

To prevent remote operation

Rotate Override Knob to right 

(LOCK OFF position).

To secure for servicing

With Override Knob in (LOCK OFF position),

pass cable tie through hole.

Wire Size (AWG)

Cranking 10 sec. 

Cranking 1 min. 

Intermittent 5 min.  Continuous (UL 1107)

2/0

2,000A

750A

400A

225A

4/0

2,000A

750A

400A

300A

2x (4/0)

2,500A

1,100A

700A

500A

To connect battery bank to load, or combine 

battery banks

Set remote switch 2155 to position marked “ON”. 

Remote LED indicates closed connection.

To disconnect battery bank from load, or 

isolate battery banks that are connected

Set remote switch 2155 to position marked “OFF”.

indicates Remote Battery Switch state or condition as follows:

LED is OFF

Remote Battery Switch is OFF

LED is ON

Remote Battery Switch is ON

LED double blinking ON-OFF

Manual override--check Remote Battery Switch for switch states.

OR Remote Battery Switch mechanical failure

‡

 

Predicted performance

* Although a SPST switch may be used if desired, use of a SPDT switch improves immunity to inadvertent 

  switching if the controls become damp.

The remote LED embedded in PN 2155 indicates a closed connection between battery bank and load, or 

between two battery banks when used as an emergency cross-connect.
Remote Operation. PN 2155 (SPDT, ON-ON) Remote Control Contura Switch in the ON position can either 

connect the battery bank to the load or combine two battery banks. In the OFF position it can either 

disconnect a battery bank from a load or isolate two batteries from each other.