Thermo Scientific UEN2320A Revco Freezer 23.3-cu ft | 659L

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


  • Choose Thermo Scientific Revco Enzyme Freezers for storage applications where slight intermittent coil warming during an auto-defrost cycle is not desired.
  • Our manual defrost -20°C upright freezers feature microprocessor control system, gravity air circulation, industrial-quality cabinet construction and extra-strength refrigeration compressors designed for industrial, clinical and scientific use.

Key Features:

  • Operating temperature: -20°C.
  • Preset temperature setpoint.
  • Upright 23.3 cu. ft. (659L) capacity.
  • Gravity convection air system for maximum stability without blowers or fans.
  • Manual defrost.

Microprocessor Control System:

  • Icon-based controls and displays.
  • Graphic thermometer is steady green when temperature is normal, flashes top bar for overtemperature, flashes bulb for undertemperature.
  • Large, easy-to-read digital display of temperature within 0.1°C.
  • 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.
  • Battery backup system.


  • Scratch-resistant, painted cold-rolled steel interior and exterior finishes.
  • Solid door with full-length handle and keyed lock—self-closes against closed-cell peripheral gasket.
  • High-density, CFC-free urethane foam insulation protects cabinet from ambient temperature fluctuations and minimizes operating costs.
  • Hermetically sealed heavy-duty, industrial-grade compressor.
  • Nine epoxy-coated, open-wire shelves, adjustable in 1in. (2.5cm) increments.
  • Adjustable leveling feet.

Ordering Information:

  • Alarm systems, temperature chart recorders, and power monitors available separately.
  • Contact our Customer Service Department for details.


  • 45 high-impact plastic enzyme storage bins for easily accessible inventory.
  • Bin overall dimensions (L × W × H): 25.25 × 4.25 × 3in. (64 × 11 × 8cm); labels not provided.


  • Valid in the USA only.


Product Size Each
Certifications/Compliance Meets UL, CUL, and CE criteria for safety and performance
Capacity (English) 23.3 cu. ft.
Capacity (Metric) 659L
Door Count 1
Dimensions (L x W x H) Exterior 37.2 x 28 x 79.2 in. (94.5 x 71.1 x 201.2cm)
Dimensions (D x W x H) Interior 29 x 24 x 58 in. (73.7 x 61 x 147.3cm)
Plug Type NEMA 5-20P
Temperature Range -20°C
Type Enzyme Freezer
Voltage 115V
Doors Single
Electrical Requirements 115V 60Hz
Warranty Warranty varies by country, please contact us for details
Amperage 13.5A
Breaker 20A
Cabinet Material Scratch-resistant painted
Depth (English) Interior 29 in.
Depth (Metric) Interior 73.7cm
Height (English) Exterior 79.2 in.
Height (English) Interior 58 in.
Height (Metric) Exterior 201.2cm
Height (Metric) Interior 147.3cm
Hertz 60Hz
Length (English) Exterior 37.2 in.
Length (Metric) Exterior 94.5cm
Refrigerant CFC-free
Shelves 9
Shipping Weight (English) 425 lb.
Shipping Weight (Metric) 193kg
Temperature Control Microprocessor
Width (English) Interior 24 in.
Width (Metric) Interior 61cm


Model Replacement Capacity Temperature Range Plug Type Electrical
UEN2320A TSX2320EA 23.3 cu. ft., 659L -20°C NEMA 5-20 115V 60Hz
UEN2320D TSX2320ED 23.3 cu. ft., 659L -20°C NEMA 6-15 208/230V 60Hz
UEN3020A TSX3020EA 29.2 cu. ft., 826L -20°C NEMA 5-15 115V 60Hz
UEN3020D TSX3020ED 29.2 cu. ft., 826L -20°C NEMA 6-15 208/230V 60Hz



Thermo Scientific Revco Enzyme Freezers Product Brochure

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