Thermo Scientific ULT1230A Revco Freezer 11.5-cu ft | 326L

  • 115 volts, 60 hertz — Product no longer available — Thermo Scientific recommends suggested replacement


  • Simplify operation and increase accuracy with the microprocessor control of Thermo Scientific Revco High-Performance Lab Freezers.
  • Our Revco -30°C and -20°C high-performance freezers are designed for medical and scientific applications such as storage of reagents, pharmaceuticals, biologicals or other commonly used laboratory materials.
    Models offer cabinet sizes to fit a variety of space needs and storage volume requirements.

Key Features:

  • Temperature factory-preset at -20° or -30°C.
  • Capacities from 4.9 to 51.1 cu. ft. (139 to 1447L).
  • Icon-based controls and displays.
  • Large, easy-to-read digital display shows temperature within 1°C.
  • Graphic thermometer is steady green when temperature is normal, flashes top bar for overtemperature, flashes bulb for undertemperature.

Microprocessor Control:

  • Audible/visual warnings for overtemperature, undertemperature, or power failure.
  • Key-operated OFF/ON/ALARM ON master switch for setpoint security.
  • Push-button alarm test.
  • Remote alarm contacts.
  • Alarm silence, ringback, and auto reset.
  • Controller battery backup system.


  • Scratch-resistant cold-rolled steel interior and exterior finishes.
  • High-density, 2" thick (5.1cm) CFC-free urethane foam insulation protects against ambient temperature fluctuations.
  • CFC-free, HFC-blend refrigerant.
  • Single-door models are hinged on right.
  • Full-length door handle and key lock.
  • Doors self-close and lock open at 90°.
  • Adjustable epoxy-coated wire shelves.
  • 1" (2.5cm) dia. access port with plug on undercounter model.

-30°C Freezers Features:

  • Automatic defrost and condensate removal.
  • Sensor automatically initiates defrost cycle on demand, eliminating need for a defrost timer, minimizing frost buildup, and optimizing coil efficiency.
  • Forced-air circulation improves temperature uniformity, provides faster recovery after door is opened.

-20°C Freezers Features:

  • Suitable for applications in which slight intermittent coil warming during an automatic defrost cycle is not desired (such as enzyme storage).
  • Gravity convection air system for maximum stability without a blower or fan.
  • Manual defrost.

Ordering Information:

  • Alarm systems, temperature chart recorders, and power monitors are available separately.


  • Published interior volumes are nominal; usable capacities may be offset by shelves, drawers, blower coils or cabinet protrusions.
  • For specific cabinet dimensions and allowances, or for verification of clearance tolerances, Contact our Customer Service Department for details.


  • Valid in the USA only.


Product Size Each
Certifications/Compliance UL and CUL listed. CE marked.
Capacity (English) 11.5 cu. ft.
Capacity (Metric) 326L
Dimensions (L x W x H) Exterior 29.3 x 24 x 73.6 in. (74.3 x 61 x 186.9cm)
Dimensions (D x W x H) Interior 21 x 20 x 52.4 in. (53.3 x 50.8 x 133.1cm)
Plug Type NEMA 5-15P
Temperature Range -30°C
Type High-Performance Freezer
Voltage 115V
Doors Single, Solid
Electrical Requirements 115V 60Hz
Warranty Warranty varies by country, please contact us for details
Amperage 8A
Breaker 15A
Depth (English) Interior 21 in.
Depth (Metric) Interior 53.3cm
Height (English) Exterior 73.6 in.
Height (English) Interior 52.4 in.
Height (Metric) Exterior 186.9cm
Height (Metric) Interior 133.1cm
Hertz 60Hz
Length (English) Exterior 29.3 in.
Length (Metric) Exterior 74.3cm
Refrigerant CFC-free
Shelves 4
Shipping Weight (English) 280 lb.
Shipping Weight (Metric) 127kg
Temperature Control Microprocessor
Width (English) Interior 20 in.
Width (Metric) Interior 50.8cm
Cabinet Type Space Saver
Defrost Automatic
Width (English) Exterior 24 in.
Width (Metric) Exterior 61cm


Model Replacement Capacity Plug Type Temperature Range Electrical
ULT430A 4.9 cu. ft., 139L NEMA 5-15 -30°C 115V 60Hz
ULT430D 4.9 cu. ft., 139L NEMA 6-15 -30°C 208-230V 60Hz
ULT1230A TSX1230FA 11.5 cu. ft., 326L NEMA 5-15 -30°C 115V 60Hz
ULT2330A TSX2330FA 23.3 cu. ft., 659L NEMA 5-20 -30°C 115V 60Hz
ULT2330D TSX2330FD 23.3 cu. ft., 659L NEMA 6-15 -30°C 208-230V 60Hz
UGL2320A TSX2320FA 23.3 cu. ft., 659L NEMA 5-20 -20°C 115V 60Hz
UGL2320D TSX2320FD 23.3 cu. ft., 659L NEMA 6-15 -20°C 208-230V 60Hz
ULT3030A TSX3030FA 29.2 cu. ft., 826L NEMA 5-20 -30°C 115V 60Hz
ULT3030D TSX3030FD 29.2 cu. ft., 826L NEMA 6-15 -30°C 208-230V 60Hz
UGL3020A TSX3020FA 29.2 cu. ft., 826L NEMA 5-20 -20°C 115V 60Hz
UGL3020D TSX3020FD 29.2 cu. ft., 826L NEMA 6-15 -20°C 208-230V 60Hz
ULT5030A TSX5030FA 51.1 cu. ft., 1447L NEMA 5-20 -30°C 115V 60Hz
ULT5030D TSX5030FD 51.1 cu. ft., 1447L NEMA 6-15 -30°C 208-230V 60Hz



Thermo Scientific Revco High-Performance Lab Freezers Product Brochure

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