Upright Style Low Temperature Freezers 0°C To -40°C, 13 cu.ft., Manual Defrost Overview
The Upright Style Low Temperature Freezers 0°C To -40°C, 13 cu.ft., Manual Defrost (model LTF401U) is a laboratory upright freezer from Yamato Scientific, supplied by LabSupplies.com as an authorized dealer. Holding 13 cu.ft. across a 0°C to -40°C range, this unit ships standard with a microprocessor digital controller, audible and visual alarms, remote alarm contacts, alarm battery backup, and a 1/2" access port.
Chamber construction uses 14-gauge zinc-coated galvanized steel, while the exterior is 16-gauge steel finished in powder-coated cool gray. Four adjustable shelves create five compartments and accept up to 15 racks. Single-stage refrigeration relies on one hermetic compressor paired with an air-cooled condenser, removing any need for liquid coolant. Refrigerant is CFC- and HCFC-free.
Electrical options span 115V, 208V, and 230V at 60 Hz single-phase, plus a 220V 50/60 Hz single-phase configuration. Exterior dimensions measure 35" × 34.5" × 79.5", and the freezer weighs 850 lbs. Built in the USA and UL Listed, each unit undergoes 7 days of testing and holds setpoint in ambient conditions up to +30°C.
Key Features
- Temperature range: maintains 0°C to -40°C with a constant low setpoint guaranteed in warm (+30°C) ambient environments.
- Capacity: 370 L / 13 cu.ft. interior with four adjustable shelves forming five compartments and room for up to 15 racks.
- Digital control: microprocessor controller with two displays — one showing the set temperature, the other the actual chamber temperature.
- Alarm system: battery-operated audible and visual alarm on mechanical or electrical failure, with over- and under-temperature settings, silencing switch, battery test switch, and a relay for remote hook-up.
- Refrigeration: single-stage system with one hermetic compressor, air-cooled condenser, and CFC- and HCFC-free refrigerant.
- Tested and listed: every freezer is fully tested for 7 days under demanding conditions and is UL Listed.
How to Choose the Right Low-Temp Freezer
Selecting a low-temperature laboratory freezer comes down to matching chamber performance and site infrastructure to your storage protocol. Use the criteria below to confirm the LTF401U fits your workflow before ordering.
- Temperature range: verify your samples store safely within 0°C to -40°C; protocols requiring colder ultra-low storage need a different class of unit.
- Capacity: confirm 13 cu.ft. (370 L), four adjustable shelves, and 15-rack capacity accommodate your sample volume and organization scheme.
- Control type: a microprocessor digital controller with dual displays supports precise monitoring of both set and actual chamber temperatures.
- Voltage: match the freezer to your available circuit — 115V, 208V, or 230V at 60 Hz, or 220V at 50/60 Hz, single-phase.
- Footprint: plan for exterior dimensions of 35" × 34.5" × 79.5" and an 850 lb weight when siting the unit.
- Safety and alarms: battery-backed audible and visual alarms plus a remote relay protect samples during power or mechanical failure.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 13 cu.ft. |
| Temperature Range | 0°C to -40°C |
| Defrost | Manual |
| Interior Capacity | 370 L / 13 cu.ft. |
| Rack Capacity | 15 racks |
| Shelving | 4 adjustable shelves (5 compartments) |
| Interior Dimensions | 20" × 22" × 51.25" (50 × 55 × 130 cm) |
| Exterior Dimensions | 35" × 34.5" × 79.5" (88 × 87 × 201 cm) |
| Temperature Control System | Digital control with two displays — one shows the set temperature, the other the actual chamber temperature |
| Refrigeration System | Single-stage system with one hermetic compressor |
| Refrigerant | CFC- & HCFC-free |
| Condenser | Air-cooled; 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 |
| Performance Testing | Every freezer is fully tested for 7 days under demanding conditions; constant low setpoint guaranteed in warm (+30°C) ambient environments |
| 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) | 797059930111 |
| Shipping Weight | 850 lbs |
| Dimensions (L × W × H) | 46 × 43 × 86 in |
| Component Size | 13 CF |
| Other Certification | UL Listed |
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| LTF-401U | EA | EA |
Documentation
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Why Buy From LabSupplies.com
LabSupplies.com is an authorized Yamato Scientific dealer, so the LTF401U arrives as a genuine factory unit backed by the manufacturer warranty. Our team handles spec questions directly and processes your order without quote forms or callbacks.
- Authorized dealer: genuine Yamato Scientific freezer with full manufacturer warranty.
- In stock: available to order now, no waitlist.
- Ships from USA inventory: dispatched directly from domestic stock.
- Specialist support: dedicated lab-equipment specialists answer technical and spec questions before you buy.
Frequently Asked Questions
What temperature range does the LTF401U maintain?
The LTF401U operates from 0°C to -40°C. Its single-stage refrigeration system holds a constant low setpoint even in warm ambient environments up to +30°C, with every unit tested for 7 days before shipment.
What is the storage capacity and interior layout?
The freezer offers 370 L / 13 cu.ft. of interior space. Four adjustable shelves create five compartments, and the chamber accepts up to 15 racks. Interior dimensions are 20" × 22" × 51.25" (50 × 55 × 130 cm).
What voltage and power supply does this freezer require?
The LTF401U is available in 115V, 208V, and 230V at 60 Hz single-phase, plus a 220V 50/60 Hz single-phase configuration. Confirm your available circuit when ordering to match the correct electrical option.
Does the LTF401U use manual or automatic defrost?
This unit uses manual defrost. It is an upright-style low-temperature freezer with an air-cooled condenser, so no liquid coolant is required for operation.
What materials are used in the chamber and exterior?
The chamber is 14-gauge zinc-coated galvanized steel. The exterior is 16-gauge steel finished in powder-coated cool gray. The refrigerant is CFC- and HCFC-free.
Is the freezer certified and where is it made?
The LTF401U is UL Listed and made in the USA. Each freezer is fully tested for 7 days under demanding conditions, and a battery-backed alarm system with a remote relay protects samples during power or mechanical failure.