{"product_id":"chest-style-ultra-low-freezers-40-c-to-85-c-9-cu-ft-manual-defrost-ulf-301c","title":"Yamato ULF301C Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost","description":"\u003ch2\u003eChest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eChest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost\u003c\/strong\u003e (model ULF301C) from Yamato Scientific is a cascade-refrigerated laboratory freezer holding 255 L across a -40°C to -85°C range. LabSupplies.com, authorized dealer, stocks this unit for long-term biological and reagent storage. Its 9 cu.ft. chamber accepts up to 16 racks.\u003c\/p\u003e\u003cp\u003eChamber walls use 14-gauge zinc-coated galvanized steel, while the exterior is 16-gauge steel finished in powder-coated cool gray. Cascade refrigeration pairs two hermetic compressors with CFC- and HCFC-free R-508B and R-404A refrigerants. Air-cooled condensing relies on two heavy-duty fans, eliminating any liquid coolant requirement.\u003c\/p\u003e\u003cp\u003ePower options span 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50\/60 Hz single-phase. Exterior dimensions measure 57.5\" × 29\" × 46.5\", and the unit weighs 675 lbs. Built in the USA and UL Listed, ULF301C ships from LabSupplies.com inventory.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital control system:\u003c\/strong\u003e microprocessor controller with dual display showing set point and chamber temperature, a scan button for temperature setting, and tamper-proof lockout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm system:\u003c\/strong\u003e audible and visual signals on mechanical or electrical failure, over- and under-temperature settings, an alarm silencing switch, and a battery test switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-backed alarm:\u003c\/strong\u003e battery-operated alarm circuit keeps monitoring active during power interruptions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote alarm relay:\u003c\/strong\u003e a built-in relay supports remote alarm hook-up for centralized facility monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower failure recovery:\u003c\/strong\u003e an automatic timer system restarts the unit after a power failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess port:\u003c\/strong\u003e 1\/2\" access port supports probes and chart-recorder leads; chamber accepts up to 16 racks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Ultra-Low Freezer\u003c\/h2\u003e\u003cp\u003eSelecting a chest ultra-low freezer comes down to matching chamber capacity, achievable temperature, control sophistication, and site power to your storage protocol. Weigh each axis below against your sample inventory and lab infrastructure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e confirm the unit reaches your required hold point; this model covers -40°C to -85°C for long-term biological and reagent storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity and rack count:\u003c\/strong\u003e a 9 cu.ft. (255 L) chamber holding 16 racks suits mid-volume sample libraries; size to current inventory plus growth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e microprocessor digital control with dual display and tamper-proof lockout protects set points in shared labs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage and site power:\u003c\/strong\u003e verify your circuit matches the available 115V, 208V, 230V, or 220V configurations before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and monitoring:\u003c\/strong\u003e battery-backed audible\/visual alarms, a remote relay, and automatic power-failure recovery guard irreplaceable samples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and weight:\u003c\/strong\u003e plan floor space for a 57.5\" × 29\" × 46.5\" cabinet weighing 675 lbs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e9 cu.ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-40°C to -85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefrost\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Capacity\u003c\/td\u003e\n\u003ctd\u003e255 L \/ 9 cu.ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Capacity\u003c\/td\u003e\n\u003ctd\u003e16 racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e46\" × 16\" × 20\" (116 × 40 × 50 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e57.5\" × 29\" × 46.5\" (146 × 73 × 116 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Control System\u003c\/td\u003e\n\u003ctd\u003eDigital control with dual display (set point and chamber temperature); scan button for temperature setting; tamper-proof lockout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigeration System\u003c\/td\u003e\n\u003ctd\u003eCascade type — two hermetic compressors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eCFC-free R-508B and R-404A (CFC- \u0026amp; HCFC-free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondenser\u003c\/td\u003e\n\u003ctd\u003eAir-cooled with two heavy-duty fans; no liquid coolant required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm System\u003c\/td\u003e\n\u003ctd\u003eBattery-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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Failure Recovery\u003c\/td\u003e\n\u003ctd\u003eAutomatic timer system restarts the unit after a power failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Requirements\u003c\/td\u003e\n\u003ctd\u003e115V \/ 208V \/ 230V, 60 Hz, 1-phase; 220V, 50\/60 Hz, 1-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eChart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eChamber is 14-ga. Zinc coated galvanized steel.\nExterior is 16-ga. steel. Power coated cool gray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN (Barcode)\u003c\/td\u003e\n\u003ctd\u003e797059929863\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e675 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e62 × 40 × 55 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Size\u003c\/td\u003e\n\u003ctd\u003e9 CF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Certification\u003c\/td\u003e\n\u003ctd\u003eUL Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Sizes and Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eULF-301C\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dropbox.com\/s\/i6la82wldj3fdzd\/ULF%20Series%20Ultra%20Low%20Freezers.pdf?dl=3\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/ultra-low-ulf-series-horizontal-chest-freezers-42?category=20#attr=80\" target=\"_blank\" rel=\"noopener\"\u003eYamato Scientific Official Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMore in This Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-2-cu-ft-manual-defrost-ulf-001c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-3-cu-ft-manual-defrost-ulf-101c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-5-cu-ft-manual-defrost-ulf-201c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 5 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-12-cu-ft-manual-defrost-ulf-401c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 12 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-14-cu-ft-manual-defrost-ulf-501c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 14 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-17-cu-ft-manual-defrost-ulf-601c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 17 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-80-c-21cu-ft-manual-defrost-ulf-701c\"\u003eChest Style Ultra Low Freezers -40°C To -80°C, 21Cu.Ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-22-cu-ft-manual-defrost-ulf-801c\"\u003eChest Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-ultra-low-freezers-40-c-to-80-c-27-cu-ft-manual-defrost-ulf-901c\"\u003eChest Style Ultra Low Freezers -40°C To -80°C, 27 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-2-cu-ft-manual-defrost-ulf-001cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-3-cu-ft-manual-defrost-ulf-101cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-5-cu-ft-manual-defrost-ulf-201cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 5 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-9-cu-ft-manual-defrost-ulf-301cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-12-cu-ft-manual-defrost-ulf-401cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 12 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-14-cu-ft-manual-defrost-ulf-501cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 14 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-17-cu-ft-manual-defrost-ulf-601cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 17 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-80-c-21cu-ft-manual-defrost-ulf-701cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -80°C, 21Cu.Ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-85-c-22-cu-ft-manual-defrost-ulf-801cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-ultra-low-freezers-40-c-to-80-c-27-cu-ft-manual-defrost-ulf-901cp\"\u003ePlatinum Chest Style Ultra Low Freezers -40°C To -80°C, 27 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-ultra-low-freezers-40-c-to-85-c-13-cu-ft-manual-defrost-ulf-401u\"\u003eUpright Style Ultra Low Freezers -40°C To -85°C, 13 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-ultra-low-freezers-40-c-to-85-c-18-cu-ft-manual-defrost-ulf-501u\"\u003eUpright Style Ultra Low Freezers -40°C To -85°C, 18 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-ultra-low-freezers-40-c-to-85-c-22-cu-ft-manual-defrost-ulf-601u\"\u003eUpright Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-ultra-low-freezers-40-c-to-85-c-25-cu-ft-manual-defrost-ulf-701u\"\u003eUpright Style Ultra Low Freezers -40°C To -85°C, 25 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-ultra-low-freezers-40-c-to-80-c-28-cu-ft-manual-defrost-ulf-801u\"\u003eUpright Style Ultra Low Freezers -40°C To -80°C, 28 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-ultra-low-freezers-40-c-to-80-c-31-cu-ft-manual-defrost-ulf-901u\"\u003eUpright Style Ultra Low Freezers -40°C To -80°C, 31 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-ultra-low-freezers-40-c-to-85-c-13-cu-ft-manual-defrost-ulf-401up\"\u003ePlatinum Upright Style Ultra Low Freezers -40°C To -85°C, 13 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-ultra-low-freezers-40-c-to-85-c-18-cu-ft-manual-defrost-ulf-501up\"\u003ePlatinum Upright Style Ultra Low Freezers -40°C To -85°C, 18 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-ultra-low-freezers-40-c-to-85-c-22-cu-ft-manual-defrost-ulf-601up\"\u003ePlatinum Upright Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-ultra-low-freezers-40-c-to-85-c-25-cu-ft-manual-defrost-ulf-701up\"\u003ePlatinum Upright Style Ultra Low Freezers -40°C To -85°C, 25 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-ultra-low-freezers-40-c-to-80-c-28-cu-ft-manual-defrost-ulf-801up\"\u003ePlatinum Upright Style Ultra Low Freezers -40°C To -80°C, 28 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-ultra-low-freezers-40-c-to-80-c-30-cu-ft-manual-defrost-ulf-901up\"\u003ePlatinum Upright Style Ultra Low Freezers -40°C To -80°C, 30 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/undercounter-ultra-low-freezers-40-c-to-85-c-2-cu-ft-manual-defrost-ulf-101un\"\u003eUndercounter Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/undercounter-ultra-low-freezers-40-c-to-85-c-3-cu-ft-manual-defrost-ulf-201un\"\u003eUndercounter Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eLabSupplies.com is an authorized Yamato Scientific dealer, so every ULF301C ships as a genuine unit backed by the manufacturer warranty. Order directly and our lab-equipment specialists stand ready to answer spec questions before purchase.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato dealer:\u003c\/strong\u003e genuine unit with full manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e ready to ship from USA inventory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt in the USA:\u003c\/strong\u003e manufactured domestically and UL Listed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist support:\u003c\/strong\u003e dedicated lab-equipment team for technical and spec questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat temperature range does the ULF301C reach?\u003c\/h3\u003e\u003cp\u003eThe ULF301C operates across a -40°C to -85°C range. Cascade refrigeration using two hermetic compressors and CFC-\/HCFC-free R-508B and R-404A refrigerants achieves these ultra-low set points for long-term sample storage.\u003c\/p\u003e\n\u003ch3\u003eHow much storage capacity and rack space does this freezer offer?\u003c\/h3\u003e\u003cp\u003eThe chamber provides 9 cu.ft. (255 L) of interior capacity and holds up to 16 racks. Interior dimensions measure 46\" × 16\" × 20\" (116 × 40 × 50 cm).\u003c\/p\u003e\n\u003ch3\u003eWhat voltage and power supply does the ULF301C require?\u003c\/h3\u003e\u003cp\u003eThe unit supports 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50\/60 Hz single-phase. Confirm your circuit matches the configuration ordered before installation.\u003c\/p\u003e\n\u003ch3\u003eWhat materials is the cabinet made from?\u003c\/h3\u003e\u003cp\u003eThe chamber is 14-gauge zinc-coated galvanized steel and the exterior is 16-gauge steel finished in powder-coated cool gray. This construction supports durable laboratory use.\u003c\/p\u003e\n\u003ch3\u003eWhat alarm and failure-protection features are included?\u003c\/h3\u003e\u003cp\u003eA battery-operated alarm emits audible and visual signals on mechanical or electrical failure, with over- and under-temperature settings, a silencing switch, and a battery test switch. A relay supports remote alarm hook-up, and an automatic timer restarts the unit after a power failure.\u003c\/p\u003e\n\u003ch3\u003eWhat are the exterior dimensions and weight for installation planning?\u003c\/h3\u003e\u003cp\u003eExterior dimensions are 57.5\" × 29\" × 46.5\" (146 × 73 × 116 cm) and the unit weighs 675 lbs. Plan adequate floor space and clearance for the air-cooled condenser fans.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/labsupplies.com\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-9-cu-ft-manual-defrost-ulf-301c#product\",\n      \"name\": \"Yamato ULF301C Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost\",\n      \"sku\": \"ULF-301C\",\n      \"mpn\": \"ULF-301C\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"url\": \"https:\/\/labsupplies.com\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-9-cu-ft-manual-defrost-ulf-301c\",\n      \"dateModified\": \"2026-06-28\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"13870.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/chest-style-ultra-low-freezers-40-c-to-85-c-9-cu-ft-manual-defrost-ulf-301c\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"gtin12\": \"797059929863\",\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/ULF301C.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"ULF301C chest ultra-low freezer: 9 cu.ft. capacity, -40°C to -85°C range, digital dual-display control. 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