5.5 KW Polar DC Marine Generator

5.5 KW POLAR DC MARINE GENERATOR

The Most Efficient Auxiliary Power for Sail or Motor Vessels

5.5 KW Polar DC Marine Generator

Engineered primarily for cruising yachts with heavy electrical loads such, as a water maker, bow thruster, air conditioning, refrigeration, radar, autopilot, and entertainment systems.

Polar DC Marine generators outperform conventional AC generators in every aspect:

  • Charges Batteries Faster
  • Smaller in Size
  • Lighter in Weight
  • Greater Reliability
  • Less Maintenance
  • More Fuel Efficient
  • Less Vibration/Noise

Auxiliary Power

Using a DC generator, battery bank, and an inverter creates an on-board power system that can have both DC and AC power 24/7, yet the generator runs only a few hours a day or week. This is the most efficient and convenient source of marine power.

  • Up to 110 amps of 12 Vdc charging for house and engine starting batteries.
  • Up to 5.5 kW for battery charging, inverter power, and electric propulsion.
  • Charges batteries and powers the inverter at the same time.
  • Charges the batteries and operates the propulsion motor at the same time.

Dual Voltage Systems

Having dual systems and separating the 12 Volt (or 24) house electronics (navigation, communication, lights, and stereo) from the battery bank used for the inverter and heavy DC loads (anchor, refrigeration, bow thrusters) offers many advantages. There is less electrical interference between the DC appliances that are producing the electrical noise and the appliances that are sensitive to it. Having the heavier DC loads operate at higher voltages improves reliability, safety, efficiency, and reduces the weight of copper onboard.

8,000 Series Alternator on 5.5 KW Polar Generator

8000 Series Alternator

The 8000 alternator series are the most reliable DC alternators on the market. There are no internal parts to wear out: no brushes, bearings, slip rings, exciters, rotating electrical windings, internal diodes, or any parts that make contact against spinning surfaces. These alternators are designed for lifetime service in marine environments. The primary applications for the Polar Power Inc. alternators have been in Military and Telecommunications use.

Volvo Penta Engines

Polar DC Marine’s DC Generators incorporate the Volvo Penta D1 series engines that are designed for the highest onboard comfort (low noise and vibration). This 2 cylinder engine is significantly smoother than conventional single cylinder marine generators. The engine is based on the Perkins 402D-D5 that Volvo developed for heavy duty industrial applications and marinized for the highest marine demands by Volvo. This guarantees a reliable engine with a long service life. The Volvo Penta D1 series engines are fitted with freshwater cooling as standard. This reduces internal corrosion and enables the engine to maintain a consistent and optimal working temperature under all conditions.

The Volvo Penta D1 engines incorporate a new 115 amp marine alternator with an electronic sensor. This makes it possible to quickly charge larger banks of 12 Vdc batteries. 24 Vdc Starters and Alternators are available as an option.

Technical Specifications

Lubrication System

  • Spin-on full-flow oil filter
  • Separate oil scavenger pipe
  • Closed circuit crankcase ventilation

Fuel System

  • Flange mounted, cam driven, in-line injection pump
  • Feed pump with hand primer
  • Spin-on type fine fuel filter

Exhaust System

  • Freshwater cooled exhaust manifold and
    seawater cooled exhaust elbow

Cooling System

  • Freshwater cooling system governed by
    thermostat
  • Tubular heat exchanger with integral expansion
    tank
  • Coolant system prepared for hot water
    outlet fittings
  • Easily accessible sea water pump and impeller

Electrical System

  • Corrosion protected electrical system
  • 14V/115A marine alternator (24 Vdc alternator
    as option)
  • Charging regulator with electronic sensor for
    voltage drop compensation
  • Glow plugs for excellent cold starting
  • Electric Starter Motor

Engine Block and Head

  • Cylinder block and cylinder head manufactured
    from high grade cast iron.
  • Crankcase features a rigid tunnel block design.
  • Chrome molybdenum forged crankshaft
    dynamically balanced with integral counterweights.
  • Pistons are cast from high silicon aluminum and
    are heat treated and fitted with two cast iron
    chromium faced compression rings and a
    single oil ring.

5.5 KW Polar DC Marine Generator Brochure

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