Marine Systems > Electricity > Electrical Management Systems > Battery switch
7700 - ML-Series Heavy Duty 500A Remote Battery Switch
7700 - ML-Series Heavy Duty 500A Remote Battery Switch

7700 - ML-Series Heavy Duty 500A Remote Battery Switch

€ 305,00 (vat incl.)

€ 247,97 (vat not incl.)

Manufacturer: Blue Sea Systems

Part Number: 7700

Our Ref.: 115889

The Blue Sea Systems ML-RBS 7700 is a 12V DC Remote Battery Switch with 500A capacity, with manual control.

500 Amp magnetic latching switch provides high amperage switching under load, manually or from remote locations.

Blue Sea Systems designed the ML-Series heavy duty remote battery switch to make controlling large battery banks push-button convenient. Because of their size and cable requirements, conventional battery switches are typically located in a lockers, or behind a seats and out of reach.

Installation of a remote switch has two benefits: it puts the control of the switch right on the dash or nav-station and it shortens heavy cables runs by putting the switching mechanism close to the battery. Included is a Contura style switch that requires only light gauge wire and will easily fit next to (if not match) other dash mounted switches. A sliding cover on the remote switch prevents accidental switching.

The ML-RBS switching mechanism can be mounted close to the batteries to limit heavy gauge cabling. For added safety a manual control lever with lock out feature has been built into the ML series switches; you will always be able to control the battery even if the wiring to the dash mounted switch is compromised. The service lock-out offers a level of safety when working on the electrical system.

Key Features

  • Included SPST Contura styled remote switch (Blue Sea Systems 2155) makes battery switching as easy as pushing a button
  • 500A capacity is able to manage large battery banks
  • Manual operation possible if power is not available
  • Service lock-out to prevent accidental current flow while working on electrical system
  • LED output in switch allows switch state indications (requires optional LED panel)
  • Label recesses for bank identification
  • 3/8" Tin-plated copper studs for maximum conductivity and corrosion resistance.
  • Silver alloy contacts are very reliable for switching large loads
  • No parasitic draw while not actively switching
  • Can be used with MV-ACR to improve battery management features
  • Ignition protected for use in engine rooms of gasoline powered boats
  • Lifetime warranty


  • Switch Type: Remote
  • Maximum Voltage: 12V
  • Continuous Rating: 500A
  • Intermittent Rating (duration): 700A (5 min)
  • Cranking Rating (10Sec): 1450A per circuit
  • Master Control Switch Capability: No
  • Cable Size to meet ratings: 4/0AWG
  • Mounting Holes: # 10 Screws
  • Terminal Stud size: 3/8”
  • Switch Dimensions: 1 13/16"L X 1” W x 1 1/2"D (1/2" above the dash)
  • ML-RBS Dimensions: 5 7/16"L x 3 ¾" W x 2"D
  • Approvals: Meets ISO 8846 and SAE J1171 external ignition protection requirements, CE marked, Rated IP66
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