Thermo Scientific TSX Manual Defrost Freezer

Thermo Scientific TSX Manual Defrost Freezers are designed for applications in which even slight intermittent coil warming during auto defrost cannot be tolerated. They have features that support sample protection, sustainability objectives, and the U.S. Environmental Protection Agency’s Significant New Alternatives Policy (SNAP). Compared to conventional refrigerant, high-performance models, the TSX Series offers a whisper quiet operation, so you can bring the freezer out of the hallway and back into the lab or clinical environment, offering significant energy savings without compromising protection.

The variable speed compressor technology (V-Drive) is designed to provide temperature uniformity that continually adapts to the lab or clinical environment, offering significant energy savings without compromising protection. V-drive runs at variable speed to adjust cooling performance to the conditions inside and outside of the refrigerator. When combined with the automated tuning control, this variable speed drive optimizes the compressors running speed to the current conditions. When there are frequent door openings, or samples are added to the freezer, the control system detects the activity and increases the drive speed to bring temperatures back to the set point quickly. This innovative technology is one of the reasons the TSX Series delivers outstanding door opening recovery (DOR) speed, and more peach of mind for busy laboratories When conditions are stable, such as when the unit is running overnight or on weekends, the drive runs at a low speed, reducing energy consumption while maintaining a stable temperature for your samples.

These freezers are designed for applications requiring storage of reagents, pharmaceuticals, biological, and other commonly used laboratory materials such as primers, siRNA molecules, and fetal bovine serum (FBS).

TSX Series Freezers are compatible with Thermo Scientific DeviceLink HUB enabling you to have a connected experience with your unit so you know always – and anywhere – the safety of your samples and the performance of your refrigerator or freezer. The units are also compatible with Thermo Scientific SMART VUE wireless monitoring systems

Key Features

  • Cold wall convection cooling with temperature uniformity
  • GMP Clean Room Class A / ISO 6 (ISO EN 14644-1) compatible with appropriate pre-install preparation
  • Four 2” casters for easy mobility; the front two are lockable
  • Self-closing door with 90° stop to assist with inventory loads
  • Enzyme freezers feature enzyme bins
  • Setpoint security with key-operated triple position switch for main power and alarm; locks in temperature and alarm setpoints to minimize setpoint error and prevent tampering
  • Graphic thermometer is easy-to-view, shows normal, high, or low temperature conditions; steady green for normal, flashing top bar for overtemperature, flashing bulb for under temperature
  • Audible alarm sounds in the event of warm, cold, or power loss conditions. Mute will silence audible alarm with 6-minute ring back interval; display remains flashing

Specifications for Thermo Scientific TSX Series Manual Defrost Freezers
  TSX3020FA TSX3020FD TSX3020EA TSX3020ED
Type General Purpose Enzyme
Temp Range
-25°C to -15°C (-20°C)
Capacity 29.2 ft³
Electrical (Plug)
115V, 60 Hz
(NEMA 5-15)
208-230V, 60Hz
(NEMA 6-15)
115V, 60 Hz
(NEMA 5-15)
208-230V, 60Hz
(NEMA 6-15)
Doors 1 Solid
Shelves (Bins) 4 (0) 9 (45)
Defrost Manual
Certification UL, cUL
Interior DxWxH 28.5" x 24.0" x 58.0" 28.5" x 24.0" x 58.0"
Exterior DxWxH 38.9" x 34.0" x 78.5" 38.9" x 28.0" x 78.5"
Shipping Weight 483 lb 552lb
Item Product Description Capacity Power Unit of Measure Price Purchase
Enzyme Freezer 30 ft³ 120V/60Hz Each
In Stock
General Purpose Freezer 30 ft³ 120V/60Hz Each
In Stock
General Purpose Freezer 30 ft³ 208V/60Hz Each
In Stock
Enzyme Freezer 30 ft³ 208V/60Hz Each
In Stock

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