Blue Sea Systems 3003 Battery Switch Selector w/AFD

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WOLF'S PRICE: $138.99


Blue Sea Systems 3003 Battery Switch Selector w/AFD

HD-Series Battery Switch , Selector 4 Position 


  • Switches isolated battery banks to all loads or combines battery banks to all loads
  • Includes AFD (Alternator Field Disconnect)</li>
  • Make-before-break contact design allows switching between battery banks without power interruption
  • Meets American Boat and Yacht Council (ABYC) requirements for battery switch
  • Ignition protected&mdash;safe for installation aboard gasoline powered boats
  • Case design allows surface or rear panel mounting
  • Accepts two 4/0 AWG (95mm&sup2;) battery cables
  • M12 tin-plated copper studs for maximum conductivity and corrosion resistance, accepts 1/2&quot; and M12 ring terminals
  • 7/8&quot; (22.22mm) stud length to accept multiple cable terminals
  • Tactile textures indicate knob position by feel only


  • Cranking Rating: 10 sec. 2,750 Amps 
  • Cranking Rating: 1 min. 1,150Amps 
  • Maximum Voltage Rating : 32 Volts DC 
  • Terminal Stud Size: 1/2 (M12) 
  • Intermittent Rating: 5 min. 700 Amps
  • Continuous Rating : 500 Amps
  • Terminal Stud Torque: 220 in-lb (24.86 N•m) 
  • Mounting Holes : Accept 1/4 (M6) Screw 
  • Cable Size to Meet Ratings : 4/0 AWG (120mm²) 
  • Terminal Stud Torque : 220 in-lb (24.86 N•m) max. 
  • Cable Clearance For 4/0 AWG Cables: 1.10 (27.9mm) 
  • Agency Standards : UL Listed - UL 1107 Electric Power Switch Meets UL 1500 and SAE J1171 external ignition protection requirements 
  • Cable Quantity to Meet Ratings : Two Cables / Terminal
  • Weight Lb (Kg) : 1.25 (0.57)


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WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to