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Thermo Scientific™ TSX Series Ultra-Low Freezer Packages

Thermo Scientific™ TSX ultra-low freezer packages include two shelves of racks with 2-inch boxes and your choice of factory-installed LN2 back-up, CO2 back-up or chart recorder

Manufacturer:  Thermo Scientific™ TSX400DRAK

 View more versions of this product

Catalog No. TSX400DRAK


Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.


TSX Series ultra-low freezer packages are not available outside the U.S. and Canada.


* Energy calculation: Typical freezer data based on internal testing with freezer set-point at -80°C and ambient temperature at 20°C



Thermo Scientific™ TSX Series ultra-low freezers feature V-drive technology, providing temperature uniformity that adapts to your environment, protecting samples and offering significant energy savings. New TSX packages include two shelves of sliding drawer racks with 2-inche boxes and 100-count cell dividers. Additional packages include factory-installed LN2 or CO2 back-up systems or chart recorders.

  • Two capacities: TSX600 stores up to 600 2-inch boxes while the TSX400 stores up to 400 2-inch boxes 
  • Choice of standard or high-performance modes offering significant energy savings over conventional refrigerant ultra-low freezers*
  • All packages include two shelves of sliding drawer racks with 2-inch boxes and 100-count cell dividers
  • Additional packages include choice of factory-installed LN2 back-up, CO2 back-up or chart recorder
  • Additional energy savings at -70°C setpoint instead of -80°C
  • Outstanding door-opening recovery time
  • Compliant with SNAP, the U.S. Environmental Protection Agency’s Significant New Alternatives Policy
  • Natural refrigerants for lower environmental impact and higher cooling efficiency
  • Water-blown foam insulation, eliminating chemical emissions and reducing the out-gassing common in other foam products
  • Whisper-quiet operation allowing the freezer to be used directly inside the lab
  • Intuitive touch-screen user interface featuring alarm status, doo-opening status, temperature status, environmental conditions and back-up system status
Description & Specifications


165 lb.
Keylock Standard, Padlock Compatible
19.4 cu.ft., 548L
Touch-Screen LCD
37.8 x 32.4 x 78 in. (96 x 82.2 x 198.1cm)
400 2-inch boxes
NEMA 6-15
-50°C to -86°C
17 minutes
8.46 sq. ft.
Smart-Vue Compatible
40,000 2mL vials
267 minutes
332 kg
CO2 or LN2 (optional)
7-day Ink or Inkless (optional)
1 outer, 2 inner
27 x 23.1 x 51.2 in. (68.6 x 58.7 x 130cm)
Water-blown foam
730 lb.
1 outer, 2 inner
6.5 kWh/day at -70°C, 7.9 at -80°C
8 sliding drawer racks and 200 2-inch boxes with 100-count cell dividers
Standard or High-Performance
Standard - Individual user names
67,600 1mL vials
730 lbs.
Warranty varies by country, please contact us for details


  • Purchase a Thermo Scientific™ TSX400 or TSX600 Series Ultra-Low Temperature Freezer Package and you’ll receive savings of up to $2,500. This is an NLSU exclusive offer. You must apply and qualify for the program to be eligible.