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TSX Series Ultra-Low Freezers

Thermo Scientific™ TSX Series freezers feature outstanding sample protection and energy efficiency. V-drive technology provides temperature uniformity and significant energy savings

Manufacturer: thermo sci cold storage  TSX400D

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Catalog No. TSX400D

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

Description & Specifications


Capacity (English) Shelf 165 lb.
Backup Systems CO2 or LN2 (optional)
Capacity (Metric) Shelf 73.4kg
2ml Vial Capacity per Freezer 40,000
Access Security Keylock Standard, Padlock Compatible
Chart Recorder 7-day Ink or Inkless (Optional)
Certifications/Compliance UL
Description TSX Series Ultra-Low Freezers
Amperage 4 /10
Capacity 19.4 cu. ft. (548L)
Depth (English) Interior 27 in.
Depth (English) Exterior 37.8 in.
Depth (Metric) Exterior 96cm
Depth (Metric) Interior 68.6cm
Display Touch-Screen LCD
Dimensions (L x W x H) Exterior 37.8 x 32.4 x 78 in. (96 x 82.2 x 198.1cm)
Dimensions (D x W x H) Interior 27 x 23.1 x 51.2 in. (68.6 x 58.7 x 130cm)
Height (English) Interior 51.2 in.
Height (English) Exterior 78 in.
Height (Metric) Exterior 198.1cm
Height (Metric) Interior 130cm
Hertz 50-60Hz
Holds 400 2-inch boxes
Length (English) Exterior 37.8 in.
Insulation Water-blown foam
Length (Metric) Exterior 96cm
Plug Type NEMA 6-15
Shipping Weight (English) 730 lb.
Shelves 3
Product Name TSX Series Ultra-Low Freezers
Shipping Weight (Metric) 332kg
Temperature Range -50°C to -86°C
Temperature Range (Metric) -50°C to -86°C
Type Ultra Low Freezer, Upright
Width (English) Exterior 32.4 in.
Width (English) Interior 23.1 in.
Width (Metric) Exterior 82.2cm
Doors 1 outer, 2 inner
Door Opening Recovery 21 minutes
Width (Metric) Interior 58.7cm
Electrical Requirements 208-230V/50-60Hz
Footprint (English) 8.46 sq. ft.
Energy Usage 7.9 kWh/day
Footprint (Metric) 0.79m2
Inner Doors 2
Operating Modes Standard or High-Performance
On-Board Datalogging Standard
Smart View Compatibility Smart-Vue Compatible
Setpoint Security Standard - Individual user names
Product Line TSX Series

Thermo Scientific™ TSX Series ultra-low temperature freezers are designed with features that support sample protection and sustainability objectives. The Series' V-drive technology is designed to provide temperature uniformity that continually adapts to the lab’s environment, offering significant energy savings without compromising sample protection.

  • Two capacities: TSX600 stores up to 600 2-inch boxes while the TSX400 stores up to 400 2-inch boxes 
  • Reduce energy usage by additional 10-18% by switching from -80C to -70C setpoint (6.5 kWh/day for TSX400 and 7.8 kWh/day for TSX600)*
  • Choice of standard or high-performance modes offering significant energy savings over conventional refrigerant ultra-low freezers*
  • Outstanding door-opening recovery time (17 minutes for TSX400 and 24 minutes for TSX600)*
  • Warm-up time (from -80°C to -50°C) in 303 minutes (TSX600); 250 minutes (TSX400)*
  • 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 (47.5 dBA for TSX400 and 45.5 dBA for TSX600)*
  • Intuitive touch-screen user interface featuring alarm status, door-opening status, temperature status, environmental conditions and back-up system status
  • All TSX Series freezers are manufactured in a zero waste to landfill facility
*Data on file.


Accessories for Catalog Number: TSX400D

Item Mfr. No. Item Description Price Per Unit Quantity  
Thermo Scientific™ Racks for Forma™ 88000 and TSU Series Freezers
thermo scientific™
Maximize the storage space in your ultra-low temperature freezer with these Thermo Scientific™ Racks for Forma™ 88000 and TSU Series Freezers. Each for $412.13
Tempshield™ Cryo-Gloves™
Breathable, stay-dry lining Pair for $236.54
Case of 10 Pair for $2,159.80
Thermo Scientific Sliding Drawer Racks for Tubes (4 inner door freezers)
thermo scientific

Maximize tube storage capacity per freezer with a racking solution for four inner-door, ultra-low temperature freezers.

Each for $435.02
Tempshield™ Cryo-Gloves™
Breathable, stay-dry lining Pair for $215.17
Case of 10 Pair for $1,964.60
thermo sci cold storage
Each for $3,535.80
Thermo Sci Cold Storage RACK SLIDING DRAWER W/O 2"BOX
thermo sci cold storage
Each for $404.48