The Liebherr Scientific Freezer SFFfg 5501 is a professional, upright laboratory freezer in the Performance series, engineered for the secure storage of flammable and temperature-sensitive materials, such as solvents, reagents, and biological samples, in laboratories and research facilities. Certified to ATEX 95 (EU Directive 2014/34/EU), it offers a 499-liter gross capacity and a temperature range of -9°C to -30°C, ensuring reliable preservation with a maximum temperature fluctuation of ±5°C. Featuring SmartFrost static cooling, a digital touch-screen controller, and a hygienic polystyrol liner, the SFFfg 5501 delivers consistent temperature stability and enhanced safety. With integrated alarms, SmartMonitoring compatibility, and compliance with EN 60068-3 standards, it is an energy-efficient solution for critical laboratory applications, backed by Liebherr’s 3-year warranty.
Key Features
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ATEX 95 Spark-Free Interior: Certified to EN/IEC 60079-0, EN/IEC 60079-7, and EU Directive 2014/34/EU (ATEX), with an interior rated for Zone 22 (II 3 G Ex ec IIC T6), ensuring safe storage of flammable substances in closed containers that could form explosive atmospheres.
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Precise Temperature Stability: Maintains a maximum temperature fluctuation of ±5°C, tested to EN 60068-3 standards by measuring temperature at nine points in the interior, ensuring optimal protection for sensitive materials.
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SmartFrost Static Cooling: Reduces frost build-up on the interior and stored products, requiring less frequent defrosting; smooth, easy-to-clean inner walls and an evaporator embedded in foam insulation ensure high energy efficiency and uniform cooling.
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Energy Efficiency: Consumes 516 kWh/year (1.412 kWh/24h) using eco-friendly R290 refrigerant, minimizing operating costs and environmental impact with low global warming potential.
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Hygienic Design: Seamless, one-piece polystyrol inner liner is robust, odorless, and fully recyclable, with smooth surfaces for easy cleaning, meeting ISO EN 14664-1 Class 5 cleanroom standards.
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Advanced Monitoring: 2.4″ touch-screen controller with built-in data logger, min./max. temperature log, and HACCP-compliant documentation; optional SmartMonitoring via retrofittable WiFi/LAN interface for cloud-based temperature monitoring and alarms.
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Safety and Security: Features a mechanical lock with two keys, visual/audible alarms for temperature deviations, power failure, and sensor defects, volt-free alarm contact for external systems, +2°C SafetyDevice to prevent over-freezing, and an alarm test function for system reliability.
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Flexible Configuration: Reversible door hinges (factory-set to right) without additional parts, 4 adjustable glass shelves (40kg load each), and a Ø10mm feedthrough for external sensors for installation flexibility.
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User-Friendly Controls: Flush-integrated control panel with a dirt-resistant membrane keyboard, self-explanatory menu with three touch buttons, demo mode for training, and support for 19 languages; displays serial and service numbers for easy access.
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Low Maintenance: Operates without filters, with manual defrost and replaceable plug-in door seals for tool-free replacement; self-closing door (<90°) enhances convenience; requires only regular cleaning and calibration; operates quietly at 49 dB(A).
Applications
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Chemical Laboratories: Safely stores flammable solvents and chemicals in closed containers, meeting ATEX 95 safety standards for explosive atmospheres.
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Pharmaceutical Laboratories: Preserves temperature-sensitive pharmaceuticals and reagents with precise temperature control, ensuring compliance with regulatory standards.
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Medical and Biological Research: Maintains specimens and cultures at consistent low temperatures for reliable research outcomes.
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Cleanroom Environments: Certified for ISO Class 5 cleanroom use, ideal for applications requiring strict hygiene and low particulate contamination.
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Healthcare Facilities: Provides secure storage for medical samples and compounds, with monitoring features to meet stringent quality requirements.
