Chest Style Ultra Low Freezers -40°C To -85°C, 5 cu.ft., Manual Defrost Overview
The Chest Style Ultra Low Freezers -40°C To -85°C, 5 cu.ft., Manual Defrost (model ULF201C) from Yamato Scientific is a chest-format laboratory freezer holding 5 cu.ft. across a -40°C to -85°C range. LabSupplies.com, authorized dealer, supplies this unit with a microprocessor digital controller, audible and visual alarms, remote alarm contacts, battery alarm backup, and a 1/2" access port.
Construction pairs a 14-gauge zinc-coated galvanized steel chamber with a 16-gauge steel exterior finished in powder-coated cool gray. A cascade refrigeration system runs two hermetic compressors using CFC- and HCFC-free R-508B and R-404A refrigerants. Air-cooled condensing relies on two heavy-duty fans, eliminating any liquid coolant requirement.
Power options cover 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Exterior dimensions measure 40.5" × 31" × 47", and the unit ships at 525 lbs. Built in the USA and UL Listed, it carries an automatic timer that restarts the freezer after a power failure.
Key Features
- Temperature range: reaches -40°C to -85°C for ultra-low sample storage.
- Digital control system: dual display shows set point and chamber temperature, with a scan button for setting and a tamper-proof lockout.
- Cascade refrigeration: two hermetic compressors run on CFC- and HCFC-free R-508B and R-404A refrigerants.
- Air-cooled condenser: two heavy-duty fans handle heat rejection, so no liquid coolant is required.
- Alarm system: battery-operated audible and visual alerts cover over- and under-temperature events, plus a silencing switch, battery test switch, and relay for remote hook-up.
- Power failure recovery: an automatic timer restarts the unit once power returns.
How to Choose the Right Ultra-Low Freezer
Matching an ultra-low freezer to your workflow comes down to storage volume, achievable temperature, and how your facility powers and monitors the unit. Weigh these axes before specifying.
- Capacity: 5 cu.ft. (142 L) holding up to 15 racks suits compact labs and satellite storage where floor space is limited.
- Temperature range: a -40°C to -85°C span covers most enzyme, sample, and reagent preservation protocols; confirm your lowest required set point.
- Control type: a digital dual-display controller with tamper-proof lockout protects programmed set points from accidental change.
- Voltage: match the unit to available circuits — 115V, 208V, or 230V at 60 Hz, or 220V at 50/60 Hz, single-phase.
- Footprint: verify exterior dimensions of 40.5" × 31" × 47" and a 525 lb shipping weight against doorways and floor loading.
- Safety and monitoring: battery-backed over/under-temperature alarms and a remote alarm relay help safeguard high-value inventory.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 5 cu.ft. |
| Temperature Range | -40°C to -85°C |
| Defrost | Manual |
| Interior Capacity | 142 L / 5 cu.ft. |
| Rack Capacity | 15 racks |
| Interior Dimensions | 30" × 18" × 16" (76 × 45 × 40 cm) |
| Exterior Dimensions | 40.5" × 31" × 47" (102 × 81 × 119 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) | 797059929856 |
| Shipping Weight | 525 lbs |
| Dimensions (L × W × H) | 46 × 41 × 55 in |
| Component Size | 5 CF |
| Other Certification | UL Listed |
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| ULF-201C | EA | EA |
Documentation
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Why Buy From LabSupplies.com
LabSupplies.com is an authorized Yamato Scientific dealer, so every ULF201C ships as a genuine unit backed by the manufacturer warranty. Our lab-equipment specialists answer spec and configuration questions directly, and orders process without quotes or callbacks.
- Authorized Yamato Scientific dealer — genuine unit with full manufacturer warranty.
- In stock and ready to order online.
- Ships from USA inventory.
- Dedicated lab-equipment specialists for technical and spec questions.
Frequently Asked Questions
What temperature range does the Yamato ULF201C reach?
The ULF201C operates from -40°C to -85°C. A cascade refrigeration system with two hermetic compressors drives the unit into the ultra-low range for long-term sample and reagent storage.
What is the storage capacity and footprint of this freezer?
Interior capacity is 5 cu.ft. (142 L), accommodating up to 15 racks. Interior dimensions measure 30" × 18" × 16", while the exterior measures 40.5" × 31" × 47" with a 525 lb shipping weight.
What power supply does the ULF201C require?
This freezer accepts 115V, 208V, or 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Match the unit to the circuit available at your installation site before ordering.
What materials are used in the cabinet construction?
The chamber is 14-gauge zinc-coated galvanized steel. Its exterior is 16-gauge steel finished in powder-coated cool gray, giving a durable surface for lab environments.
How does the alarm system protect stored samples?
A battery-operated alarm emits audible and visual signals on mechanical or electrical failure. Over- and under-temperature settings, an alarm silencing switch, and a battery test switch are included, along with a relay for remote alarm hook-up.
Does the freezer recover automatically after a power outage?
Yes. An automatic timer system restarts the unit once power is restored, helping maintain set-point conditions without manual intervention.