Marvel Scientific 24" Hazardous Location Freezer

Category Explosion-Proof Refrigerators & Freezers
Manufacturer Marvel Scientific
Country of manufacture the United States of America

The Marvel Scientific MS24FASHRW (formerly the 4EAF) is a 4.5 cubic foot Hazardous Location Freezer that is appropriate for non-critical temperature storage applications. Hazardous Location products are often referred to by the industry term “Explosion Proof”. It uses a “G” shaped plate-type evaporator installed across the top of the interior. Its large surface area efficiently absorbs heat to cool the well-insulated interior which is all dedicated freezer space.

The MS24FASHRW features a static condenser and requires additional ventilation clearance when installed under a bench. Construction features include a specially designed compressor, overload, relay and thermostat system with all electrical components enclosed to prevent accidental ignition of flammable vapors present in the ambient environment surrounding the freezer. The MS24FASHRW is supplied with a two-wire pigtail for hardwire connection to an appropriately rated conduit box. When installed under lab benches or within casework the MS24FASHRW requires additional ventilation clearance of 1″ from top and sides of the cabinet and 1 1/2″ from the back to insure proper static condenser ventilation.

The MS24FASHRW complies with the following specifications and standards:

Listed by Underwriters Laboratories for Class 1, Division 1 and 2, Group C and D applications Wiring complies with National Electrical Code, Article 501 for Class 1, Division 1 and 2 Complies with ANSI/UL 1203 Standard, NFPA 70 and NFPA 99


  • Specially designed compressor with all electrical components fully enclosed, to prevent an electrical spark from accidentally igniting any flammable vapors present in the ambient environment surrounding the freezer
  • Static condenser mounted to the back of the cabinet, free of electric condenser fan motor to eliminate sources of accidental ignition of flammable vapors
  • Adjustable mechanical thermostat, fully enclosed to prevent ignition of flammable vapors
  • Manual defrost protects freezer contents from automatic defrost freeze and thaw cycles and dehydration
  • One removable interior wire shelf
  • Flat interior door liner (no shelves)
  • “Box Style” door
  • Discrete top edge mounted door handle
  • 4 Leveling legs for easy height adjustment
  • Two wire pig-tail for hardwire connection
  • Durable white powder coat paint finish standard
  • Built-in door lock for secure storage

NOTE: Marvel Scientific refrigerators and freezers are manufactured at the time the order is placed and then put through rigorous testing to ensure quality before they are released. A lead time of approximately 2-3 weeks should be expected

    Key Attributes
    Min. Temperature -18° to -15°C
    Cubic Feet 4.5
    Alarms No
    Controls Mechanical
    Defrost Manual
    Electrical 115V/60Hz/3.3Amps
    Warranty (years) 1
    Weight (lb) 120
    Width (in) 34
    Depth (in) 23 7/8
    Height (in) 26



    Manufacturer Specifications 
    Temperature Range  -18° to -15°C
    Volume 4.5 cubic feet, 127 liters
    Exterior Dimensions: H x W x D Inches: 34 x 23 7/8 x 26
    Interior Dimensions: H x W x D Inches: 24 3/4 x 19 x 18 1/4
    Electrical: 115V/60Hz/3.3Amps
    Shipping Weight: 120 lbs./55 kg. (130 lbs./59 kg. with skid)
    DOOR COLOR White
    DOOR TYPE Solid
    HINGE Right
    TMAR No

    *Hazardous location and flammable material storage models feature condensers and need an additional 1″ clearance from top and sides and 1 1/2″ from back for proper condenser ventilation when recessed.


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