For almost 50 years Frigibar® has manufactured 12/24V packaged condensing units, allowing consumers to put a refrigerator or freezer on their boat where none existed before with a simple, self-installation conversion kit. Our original conversion kit, called the LectricIceman® has provided customers with additional cold storage on vessels for decades.

Today is no exception. While the LectricIceman® has been retired, Frigibar® has developed new options for 12/24V refrigeration conversion kits called the POLAR CUB™ and POLAR CUB+™. These self-contained, easy to install units make it possible to turn existing ice boxes into additional refrigerator or freezer space.

Those days are over. Introducing POLAR CUBE™, the first adaptable packaged condensing unit available in the size, capacity, voltage, fitting configuration and refrigerant you need.

Refitting an older condensing unit? POLAR CUBE™ is a direct drop-in replacement. The fittings are compatible with most other manufacturer’s units and all connections are in the same orientation. This makes switching to POLAR CUBE™ very easy.


  • Packaged 12/24V condensing units for built-in refrigerators/freezers
  • Air-cooled or Water-cooled
  • High capacity condenser and fan
  • Self-contained white powder coated aluminum housings, which can be easily be mounted horizontally, vertically or stacked
  • Polar Cub (BD50) in 12/24V (12/24/115/230V optional) Polar Cub+ (BD80) in 12/24V
  • Designed for easy installation and serviceability
  • Resealable coupling connections
  • Digital thermostats available
  • Complete conversion kits with thermostats and evaporator plates available


POLAR CUB™ and POLAR CUB+™ is a compact 12/24V packaged condensing unit designed for use in direct expansion refrigeration
and freezer units, such as cockpit refrigerators/freezers, and fish boxes. Other popular applications include mezzanine or galley
refrigerators/freezers. Packaged units are typically placed remotely and are commonly located in the engine room, lazarette, etc.

POLAR CUB™ and POLAR CUB+™ offer a convenient conversion option for refrigerating or freezing an existing insulated box on-board any vessel that requires additional cold-storage but does not have a generator.

POLAR CUB™ and POLAR CUB+™ enclosures are white powder coated aluminum and can be mounted on a bulkhead or horizontal surface. The self-contained units allow for ease of installation with clear access to mounting holes.

POLAR CUB™ and POLAR CUB+™ units are air-cooled and available with a BD50 compressor in 12/24V (12/24/115V option available) or a BD80 compressor in 12/24V. Units come standard with resealable couplings and an option to mount a directional vent to route warm air
exhaust to the desired location. All units use R134a refrigerant.

POLAR CUB™ and POLAR CUB+™ units are capable of refrigerating 14 to 21 cubic feet and freezing 5 to 7 cubic feet with proper application and adequately sized evaporator plate (sold separately).

Questions about Polar Cub? Send us a note.