Temporarily unavailable. Yamato Scientific America has temporarily suspended sales of the ULF and LTF freezer series to comply with EPA and CARB refrigerant requirements. Yamato is replacing them with the VUF and VLF series.
Why order the ULF501C from LabSupplies.com
Chest Style Ultra Low Freezers -40°C To -85°C, 14 cu.ft., Manual Defrost Overview
Chamber walls use 14-gauge zinc-coated galvanized steel, while the exterior is 16-gauge steel finished in powder-coated cool gray. A cascade refrigeration system pairs two hermetic compressors with CFC-free R-508B and HCFC-free R-404A refrigerants. Air-cooled condensing relies on two heavy-duty fans, eliminating any liquid coolant requirement.
Key Features
- Cascade refrigeration: two hermetic compressors reach -85°C using CFC-free R-508B and HCFC-free R-404A refrigerants.
- Battery-backed alarm system: audible and visual signals trigger on mechanical or electrical failure, with over/under-temperature settings, silencing switch, and battery test switch.
- Power failure recovery: an automatic timer system restarts the unit after power is restored.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 14 cu.ft. |
| Temperature Range | -40°C to -85°C |
| Defrost | Manual |
| Interior Capacity | 400 L / 14 cu.ft. |
| Rack Capacity | 30 racks |
| Interior Dimensions | 62" × 20" × 20" (157 × 50 × 50 cm) |
| Exterior Dimensions | 72.5" × 33" × 47.5" (184 × 83 × 120 cm) |
| Temperature Control System | Digital control with dual display (set point and chamber temperature); scan button for temperature setting; tamper-proof lockout |
| Refrigeration System | Cascade type — two hermetic compressors |
| Refrigerant | CFC-free R-508B and R-404A (CFC- & HCFC-free) |
| Condenser | Air-cooled with two heavy-duty fans; no liquid coolant required |
| Alarm System | Battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up |
| Power Failure Recovery | Automatic timer system restarts the unit after a power failure |
| Electrical Requirements | 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase |
| Optional Accessories | Chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves |
| Material | Chamber is 14-ga. Zinc coated galvanized steel. Exterior is 16-ga. steel. Power coated cool gray |
| Country of Origin | USA |
| GTIN (Barcode) | 797059929887 |
| Shipping Weight | 900 lbs |
| Shipping Dimensions (L × W × H) | 77 × 42 × 55 in |
| Component Size | 14 CF |
| Other Certification | UL Listed |
| Warranty | 1 year (Yamato Scientific America) |
| Service | Calibration and preventive maintenance on site by Yamato-certified technicians or at Yamato's California service center |
Compare ULF Series Models
| Model | Capacity | Temperature range | Racks | Interior (W × D × H) | Exterior |
|---|---|---|---|---|---|
| ULF001C | 2 cu.ft. | -40°C to -85°C | 6 racks | 17" × 14" × 14" (43 × 35 × 35 cm) | 25.25" × 25.75" × 40" (64 × 65 × 101 cm) |
| ULF101C | 3 cu.ft. | -40°C to -85°C | 8 racks | 24" × 12" × 18" (60 × 30 × 45 cm) | 34.5" × 25.25" × 48" (87 × 64 × 121 cm) |
| ULF201C | 5 cu.ft. | -40°C to -85°C | 15 racks | 30" × 18" × 16" (76 × 45 × 40 cm) | 40.5" × 31" × 47" (102 × 81 × 119 cm) |
| ULF301C | 9 cu.ft. | -40°C to -85°C | 16 racks | 46" × 16" × 20" (116 × 40 × 50 cm) | 57.5" × 29" × 46.5" (146 × 73 × 116 cm) |
| ULF401C | 12 cu.ft. | -40°C to -85°C | 27 racks | 55" × 19" × 20" (139 × 48 × 50 cm) | 65.5" × 32" × 47.5" (166 × 81 × 120 cm) |
| ULF501C (this model) | 14 cu.ft. | -40°C to -85°C | 30 racks | 62" × 20" × 20" (157 × 50 × 50 cm) | 72.5" × 33" × 47.5" (184 × 83 × 120 cm) |
| ULF601C | 17 cu.ft. | -40°C to -85°C | 36 racks | 69" × 20" × 21" (175 × 50 × 53 cm) | 81.25" × 33.5" × 48.5" (206 × 85 × 123 cm) |
| ULF701C | 21 cu.ft. | -40°C to -80°C | 36 racks | 81" × 21.5" × 21" (205 × 54 × 53 cm) | 91" × 36" × 49" (231 × 91 × 124 cm) |
| ULF801C | 22 cu.ft. | -40°C to -85°C | 36 racks | 67" × 19" × 30" (170 × 48 × 76 cm) | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
| ULF901C | 27 cu.ft. | -40°C to -80°C | 48 racks | 67" × 23" × 31.25" (170 × 57 × 79 cm) | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
Ordering Information
| Catalog number | GTIN / UPC |
|---|---|
| ULF-501C | 797059929887 |
| Manufacturer | Yamato Scientific |
| Manufacturer part number | ULF-501C |
| UNSPSC | 41103000 — Ultra Low Freezer |
| Export classification (ECCN) | EAR99 |
Documents & Downloads
More in This Series
- Yamato ULF301CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost
- Yamato ULF501U Upright Style Ultra Low Freezers -40°C To -85°C, 18 cu.ft., Manual Defrost
- Yamato ULF401U Upright Style Ultra Low Freezers -40°C To -85°C, 13 cu.ft., Manual Defrost
- Yamato ULF401C Chest Style Ultra Low Freezers -40°C To -85°C, 12 cu.ft., Manual Defrost
- Yamato ULF201UN Undercounter Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost
- Yamato ULF601C Chest Style Ultra Low Freezers -40°C To -85°C, 17 cu.ft., Manual Defrost
View all Ultra-Low Temperature Freezers →
Frequently Asked Questions
What temperature range does the ULF501C reach?
The ULF501C operates from -40°C to -85°C. Its cascade refrigeration system uses two hermetic compressors with CFC-free R-508B and HCFC-free R-404A refrigerants to sustain ultra-low temperatures.
What is the storage capacity and footprint of this freezer?
Interior capacity is 14 cu.ft. (400 L), holding up to 30 racks. Exterior dimensions measure 72.5 × 33 × 47.5 inches (184 × 83 × 120 cm), with interior dimensions of 62 × 20 × 20 inches.
What power supply does the ULF501C require?
The unit accepts 115V, 208V, or 230V at 60 Hz, single-phase, plus a 220V 50/60 Hz single-phase option. Confirm your facility circuit matches before installation.
Does this freezer require manual defrost?
Yes, the ULF501C is a manual defrost chest freezer. Air-cooled condensing with two heavy-duty fans removes the need for any liquid coolant.
What is the UNSPSC code for the Yamato ULF501C?
The Yamato ULF501C is classified under UNSPSC 41103000 (ultra low freezer).
Where is the Yamato ULF501C manufactured?
Yamato Scientific lists USA as the country of origin for the ULF501C.
Is there a spec sheet or brochure for the Yamato ULF501C?
Yes. The Yamato ULF Series Ultra-Low Freezer brochure (845 KB PDF) is linked under Documents & Downloads on this page.
How does the Yamato ULF501C compare with the other ULF Series models?
Yamato builds this ULF Series line in 10 sizes: 2 cu.ft. (ULF001C), 3 cu.ft. (ULF101C), 5 cu.ft. (ULF201C), 9 cu.ft. (ULF301C), 12 cu.ft. (ULF401C), 14 cu.ft. (ULF501C), 17 cu.ft. (ULF601C), 21 cu.ft. (ULF701C), 22 cu.ft. (ULF801C) and 27 cu.ft. (ULF901C). The comparison table on this page lists capacity, temperature range, racks, interior (w × d × h) and exterior side by side.
Which alarms does the Yamato ULF501C have?
Yamato lists these alarms for the ULF501C: battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up.
What are the interior dimensions of the Yamato ULF501C?
The Yamato ULF501C chamber measures 62" × 20" × 20" (157 × 50 × 50 cm) inside (W × D × H).
How many storage racks does the Yamato ULF501C hold?
Yamato rates the ULF501C at 30 racks in 400 L / 14 cu.ft. of storage.
What refrigeration system does the Yamato ULF501C use?
The Yamato ULF501C uses cascade type — two hermetic compressors, CFC-free R-508B and R-404A (CFC- & HCFC-free) refrigerant and manual defrost.
What certifications does the Yamato ULF501C carry?
Yamato lists the ULF501C as UL Listed.
What optional accessories are available for the Yamato ULF501C?
Yamato offers these options for the ULF501C: chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves.
What are the shipping dimensions and weight of the Yamato ULF501C?
Yamato's shipping data lists the ULF501C at 77 × 42 × 55 in and 900 lb packed.
