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Blue Sea Systems  |  SKU: TMS-20943

Blue Sea 8686 Dual-Battery m-Series, Dual Circuit Plus [8686]

$404.00 $473.00
Shipping calculated at checkout.


Care information

Please follow the manufacturer’s care recommendations as provided in the product manual.

Delivery and Shipping

All orders placed by 4pm EST will ship the same day as long as everything requested is currently in stock.

Shipping would be either via UPS, Canada Post or USPS.

All orders outside the United States may incur Custom charges of your country.

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m-Series Dual Circuit Plus PN 6011


(1) 100A C-Series Flat Rocker Circuit Breaker
(2) 15A Push Button Thermal Circuit Breakers

  • Designed for twin engine configurations
  • Provides 24 hour circuit protection
  • Provides main DC circuit protection in addition to high ampere load protection
  • Protects electronics from sags and spikes caused by engine cranking
  • Allows emergency cross connect between isolated battery banks
  • Isolates the Engine circuit from the House circuit
  • Simplifies battery switch operation
  • Allows independent battery discharge
  • Addition of an Automatic Charging Relay automates charging both batteries
  • Includes 4218 - Square Format Labels and 4140 - 24 Hour Round Labels

WarningWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.


Quick Guide (pdf)
Owner's Manual (pdf)

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Blue Sea Systems

Blue Sea 8686 Dual-Battery m-Series, Dual Circuit Plus [8686]

$404.00 $473.00

m-Series Dual Circuit Plus PN 6011


(1) 100A C-Series Flat Rocker Circuit Breaker
(2) 15A Push Button Thermal Circuit Breakers

WarningWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.


Quick Guide (pdf)
Owner's Manual (pdf)
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