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Product Information

The NLDC 40 from National Luna is a DC to DC battery charger and isolator for a dual battery system. It will charge an auxiliary or service battery from a vehicle alternator, Solar panel or auxiliary DC source up to 40A output current. Traditional 12V and 24V vehicle alternators as well as variable voltage alternators are supported.

  • True 40A output current
  • 6-stage intelligent charge algorithm
  • 12V and 24V input
  • Smart-alternator compatible
  • 40A, 600W MPPT solar regulator
  • Supports solar panels up to 42V
  • AGM, Gel, Wet, Calcium, Lithium Ion batteries supported
  • Battery temperature compensation for safe charging
  • Sealed to IP67 rating (waterproof)
  • Replaceable terminal block
  • Short-circuit protected
  • Reverse-polarity protected
  • Over-voltage protected
  • Over-temperature protected
  • Optional remote monitor
  • In the box: NLDC-40 DC-DC charger
  • Universal mounting plate & fixtures
  • In-line fuses & holders
  • Temperature compensation probe
  • Installation kit including lugs and screws
  • Installation manual
  • 5-Year Warranty

Extra Info


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National Luna DC-DC 40Amp Dual Battery Isolator and Charger

Code: 1029839
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x R8,329.00

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