Liebherr – −86 °C ULT freezers
Liebherr “ULT” ultra-low-temperature freezers
Maximum safety for valuable samples.
Liebherr ULT freezers deliver stable performance, reliable operation and a long service life, even under the most stringent laboratory requirements.
One of the key advantages that sets Liebherr appliances apart on the market is the comprehensive 5-year warranty. This means more than just longer warranty coverage—it provides genuine peace of mind: the manufacturer is confident in the long-term reliability of the equipment, allowing users to plan for predictable, stable operation.
The comprehensive 5-year warranty is particularly important for users who:
- operate a laboratory continuously
- cannot afford unexpected downtime or temperature fluctuations
- are looking for a secure, auditable long-term solution
Advanced insulation technology: PU insulation foam and vacuum insulation panels (VIP)
In addition to conventional high-density PU insulation foam, Liebherr laboratory ULT freezers also use vacuum insulation panels (VIP). This advanced insulation solution delivers outstanding thermal insulation efficiency with a reduced insulation thickness.
Potential-free alarm relay
The appliances feature a potential-free alarm relay, enabling connection to a building management system (BMS) or an external alarm system. In the event of an alarm, the relevant control centre receives an immediate notification, enabling rapid intervention in critical situations.
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Available models
| Feature Model | SUFsg 7001 | SUFsg 7001 H72 variant |
SUFsg 5001 | SUFsg 5001 H72 variant |
SUFsg 3501 |
|---|---|---|---|---|---|
| Gross / net volume | 728 / 700 l | 728 / 700 l | 491 / 477 l | 491 / 477 l | 402 / 382 l |
| External dimensions in mm (W/D/H) | 1204 / 1082 / 1966 | 1204 / 1082 / 1966 | 920 / 1082 / 1966 | 920 / 1082 / 1966 | 797 / 1082 / 1966 |
| Internal dimensions in mm (W/D/H) | 890 / 605 / 1300 | 890 / 605 / 1300 | 606 / 605 / 1300 | 606 / 605 / 1300 | 466 / 605 / 1300 |
| Energy consumption over 365 days | 2957 kWh | 2957 kWh | 2884 kWh | 2884 kWh | 2738 kWh |
| Ambient temperature | +16 °C max +32 °C | +16 °C max +32 °C | +16 °C max +32 °C | +16 °C max +32 °C | +16 °C max +32 °C |
| Heat output | 1224 kJ/h | 1224 kJ/h | 1188 kJ/h | 1188 kJ/h | 1116 kJ/h |
| Heat dissipation system / refrigeration technology | Air cooling / cascade refrigeration | Water cooling / cascade refrigeration | Air cooling / cascade refrigeration | Water cooling / cascade refrigeration | Air cooling / cascade refrigeration |
| Refrigerant | R 290 / R 170 | ||||
| Noise level | 47 dB(A) | ||||
| Voltage / frequency / connection rating | 230V~ / 50 Hz / 7,0 A | ||||
| Temperature range | −40 °C max −86 °C | ||||
| Controller type | LED 7-segment display with buttons | ||||
| SmartMonitoring capable / network connection method | Yes / external data loggers | ||||
| Network connection solution | Optional | ||||
| Interface | LAN (Ethernet) | ||||
| Data logger | built-in, USB port | ||||
| Mains power failure alarm | immediately upon power failure, for 72 hours | ||||
| Pull-down time +22 °C to −80 °C | 450 min | 450 min | 360 min | 360 min | 180 min |
| Warm-up time −80 °C to −60 °C / 0 °C | 250 min / 2220 min | 250 min / 2220 min | 230 min / 2160 min | 230 min / 2160 min | 170 min / 1300 min |
| Number of storage surfaces | 4 | ||||
| Usable shelf dimensions, mm (width / depth) | 860 / 590 | 860 / 590 | 580 / 590 | 580 / 590 | 460 / 590 |
| Storage surface load capacity / appliance | 50 kg / 200 kg | 50 kg / 200 kg | 50 kg / 200 kg | 50 kg / 200 kg | 50 kg / 200 kg |
| Number of racks per level | 6 | 6 | 4 | 4 | 3 |
| 50 mm / 75 mm cryoboxes max. number | 528 / 336 | 528 / 336 | 352 / 224 | 352 / 224 | 264 / 168 |
| Probe access ports | 3 x Ø 28 mm | ||||
| Lockable design | Yes | ||||
| Gross / net weight | 361 / 313 kg | 308 / 254 kg | 260 / 226 kg | ||
