The VIP ULtra Low Freezer MDF-U55V is an Ultra Low Temperature freezer, which uses VIP PLUS. This makes the MDF-U55V VIP Ultra Low Temperature Freezer (and the whole VIP range) the most complete combination of refrigeration, control, alarm, monitoring and accessibility for product safety at -86°C.

The microprocessor control system assuress a secure, easy to use and comprehensive. Set point, alarm parameters and self-diagnostic functions are accessed through a tamper-resistant keypad protocol. Control inputs are managed with convenient push-ad buttons on a unitized, sealed control overlay. The panel is door-mounted and angled for easy access.

Patented VIP Vacuum Insulation Panels


PHC was the first company to introduce vacuum insulation panels to ultra-low temperature freezers. The PHCbi range of freezers with VIP® insulation typically provide 30% more storage capacity for a given floor area saving valuable laboratory space.

The PHCbi patented VIP vacuum insulation panel thin-wall composite is a high-efficiency design that yields more interior storage volume in a conventional freezer footprint.

Patented VIP Vacuum Insulation Panels

PCHbi also offers the new generation VIP PLUS vacuum panels in several ULT Freezer models for increased energy efficiency and cooling performance.




  • VIP vacuum insulation maximises storage capacity
  • New refrigeration system enables more energy efficient operation
  • Safe operation with Status Alert continuous condition monitoring
  • Inner doors removable for cleaning and defrosting
  • Enhanced security with new rugged outer door latch
  • Improved accessibility
  • Quiet operation
  • Can hold up to 352 pcs 2-inch boxes or 224 pcs 3-inch boxes
  • Class IIa Medical Device
  • Status Alert Condition monitor
  • Two independent and insulated inner doors with gaskets prevent cold air leakage.
  • Alarm lamp and buzzer
  • High and low temperature warning
  • Alarm ring-back function
  • Microprocessor-controlled blocked filter alarm
  • Quiet operation
  • Inner doors removable for cleaning and defrosting



External Dimensions (W x D x H)770 x 870 x 1990 mm
Internal Dimensions (W x D x H)630 x 600 x 1380 mm
Volume519 litres
Net Weight290 kg
Capacity (Aluminium Racks 2” Boxes)352 (2” boxes)
Capacity (Stainless Steel Racks 2” Boxe)
Cooling Performance-86 °C
Temperature Setting Range-50 to -90 °C
Temperature Control Range-50 to -86 °C
ControllerMicroprocessor, non-volatile memory
Temperature SensorPt-1000
Refrigeration SystemCascade
Compressors450/750 W
Insulation MaterialPUF / VIP Plus
Insulation Thickness70 mm
Exterior MaterialPainted Steel
Interior MaterialPainted Steel
Outer Doors/Lid1
Outer Door LockY
Inner Doors/Lid2 pieces (insulated)
Max. Load – Per Shelf50 kg
Max. Load – Total415 kg
Vacuum Release PortN
Access Port3
Access Port PositionBack, Bottom x 2
Access Port Diameter17
Power FailureV-B-R
High TemperatureV-B-R
Low TemperatureV-B-R
Door OpenV-B
Power SupplyLocal
Noise Level52 dB [A]