Pro Installer Selector Battery Switch with Alternator Field Disconnect
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MARINCOPro Installer Selector Battery Switch with Alternator Field Disconnect


In stock online.
Model # 15798945 | Mfg # 771-SFDUPC # 843687007784


Pro Installer Selector Battery Switch with Alternator Field Disconnect

Name Value
Amperage 400 Amps
Cold Cranking Amps 1500 Amps
Color Red
Dimensions 3 7/8" Width x 3 7/8" Length x 3 5/8" Height
ISO Approved UL1107 Ignition Protection
Type On/Off Switches
Voltage 6/12/24/36 Volts Systems
Warranty Details Five Years

Product Overview

The new benchmark in battery switches with AFD

A powerful new generation battery switch with outstanding performance and features for both the installer and end user. Three mounting options: surface, rear panel, and front panel mounting, plus optimized cable access makes installation a breeze. Pro Installer switches set the new benchmark with outstanding ergonomics, intuitive switch positioning and clear graphics to indicate switch position. Able to accept large cables with multiple lugs, these switches are engineered to withstand the harsh marine environment. The pro Installer series are designed to interconnect with other pro installer components to reduce system size and simplify installation.

This four position battery switch manages two battery banks and adds a removable knob for added security that can also serve as a lockout function. It also features an alternator field disconnect that will protect alternator diodes if the switch is accidently turned to the OFF position while the engine is running. Available interchangeable labels allow customization when building a battery management system.

Key Features

  • Alternator Field Disconnect allow switch to be turned to OFF position while engine is running without damaging alternator diodes
  • Corrosion resistant fiber reinforced plastic designed to stand up to marine environment
  • Three installation options; surface, rear panel and front panel
  • Interconnection with other Pro Installer products reduces overall footprint of the system
  • Removable knob adds a level of security and offers a service lockout feature
  • Tinned copper terminal studs offer excellent conductivity and corrosion resistance
  • Ignition protected; can be installed in engine rooms of gasoline powered boats
  • IP66 rated; can withstand powerful water jets
  • Five-year warranty


  • Switch Positions: 4
  • Battery Combine: No
  • Alternator Field Disconnect: Yes
  • Maximum Voltage: 48V
  • Continuous Rating: 400A
  • Intermittent Rating (duration): 600A (5min)
  • Cranking Rating (15Sec): 1500A
  • Battery Inputs: 2
  • Cable Size to meet ratings: 1/0 AWG
  • Mounting Holes: #10
  • Terminal Stud size: 3/8”
  • Dimensions: 3 7/8"W x 3 7/8"H x 3 5/8"D


 WARNING: Cancer and Reproductive Harm -


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