Liebherr SRFfg 4001 Explosion-Proof Laboratory Refrigerator

Overview

The Liebherr SRFfg 4001 is an ATEX-certified, upright explosion-proof laboratory refrigerator engineered for the secure, temperature-stable storage of flammable and explosive substances in research laboratories, pharmaceutical quality control environments, chemical synthesis facilities, and industrial R&D settings. Designed and manufactured in Austria, this unit complies fully with the European Union’s Directive 2014/34/EU (ATEX 95), ensuring intrinsic safety in hazardous areas classified as Zone 1 and Zone 2 under IEC 60079 standards. Its core operational principle relies on a fully intrinsically safe refrigeration architecture: all electrical components—including compressors, fans, sensors, display modules, and control circuitry—are encapsulated, isolated, or energy-limited to prevent spark generation or thermal ignition under fault conditions. The cabinet employs a robust steel construction with non-sparking internal surfaces and sealed cable entries, eliminating potential ignition sources while maintaining precise thermal performance across its specified operating range of +3 °C to +16 °C.

Key Features

• ATEX-certified design validated by electro-suisse – SEV, an EU-notified body for conformity assessment under Directive 2014/34/EU
• Compliance with harmonized standards EN 1127-1 (explosion prevention), IEC 60079-0 (general requirements), and IEC 60079-15 (type of protection “nA” for non-sparking equipment)
• High-precision temperature control with ±3 °C stability around setpoint—critical for preserving integrity of volatile solvents, catalysts, and reactive intermediates
• Fan-cooled refrigeration system using environmentally optimized hydrocarbon refrigerant R 600a (GWP = 10), supporting sustainability objectives without compromising cooling efficiency
• Monochrome touchscreen interface with intuitive navigation, real-time temperature logging, and configurable alarm thresholds
• Five adjustable tempered glass shelves (460 mm × 422 mm each), rated at 40 kg load capacity per shelf; total unit static load capacity: 225 kg
• Integrated power failure alarm with audible and visual notification upon restoration—essential for GLP/GMP traceability and incident response protocols
• Low-noise operation at 49 dB(A) and annual energy consumption of 421 kWh—optimized for continuous 24/7 operation in regulated laboratory environments

Sample Compatibility & Compliance

The SRFfg 4001 is intended exclusively for storage of Class I (gaseous) and Class II (dust) hazardous materials defined under ATEX and IEC 60079 frameworks. It is not rated for cryogenic or freezing applications, nor for use with pyrophoric compounds requiring inerted atmospheres. Internal chamber dimensions (460 × 422 × 1660 mm) accommodate standard 1–5 L solvent bottles, glass carboys, and modular sample racks without obstructing airflow. All internal surfaces are smooth, non-porous, and chemically resistant to common organic solvents. The unit bears CE marking under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU), and conforms to IEC 61010-2-011 for laboratory equipment safety—ensuring mechanical integrity, electrical insulation, and fault-condition protection. Documentation includes full Declaration of Conformity, test reports from SEV, and installation guidelines aligned with ISO/IEC 17065 accreditation requirements.

Software & Data Management

While the base configuration features a standalone monochrome touch interface, optional connectivity modules support integration into centralized laboratory infrastructure. An available LAN/WiFi interface enables remote monitoring via Liebherr’s LabConnect™ software suite (v3.2+), which logs temperature history with timestamped entries, supports user-access controls, and generates audit-ready CSV reports compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, data immutability, and change tracking. Alarm events (e.g., door open >60 s, temperature deviation >±3.5 °C, power interruption) trigger automated email/SMS notifications when configured with enterprise IT systems. Data retention is configurable up to 12 months onboard; external backup is supported via USB export or network share.

Applications

• Storage of flammable solvents (e.g., acetone, ethanol, diethyl ether, THF) in synthetic chemistry labs
• Secure holding of peroxide-forming compounds prior to analysis or disposal
• Temperature-controlled staging of reagents used in exothermic reaction workflows
• Compliance-driven archiving of reference standards and certified reference materials (CRMs) in ISO/IEC 17025-accredited testing laboratories
• Backup cold storage for QC/QA departments operating under GMP Annex 1 and USP <1059> environmental control guidelines
• On-site containment for intermediate batches awaiting stability testing or regulatory release

FAQ

Is the SRFfg 4001 certified for use in Zone 1 hazardous areas?
Yes—it carries full ATEX certification for Zone 1 (gas) and Zone 21 (dust) per Directive 2014/34/EU, verified by electro-suisse – SEV under IEC 60079-15 (protection type “nA”).
Can this unit be integrated into a laboratory-wide environmental monitoring system (EMS)?
Yes—optional LAN/WiFi hardware and LabConnect™ software enable seamless integration with validated EMS platforms compliant with ISO 14644, EU GMP Annex 15, and ASTM E2500.
Does the refrigerator meet FDA 21 CFR Part 11 requirements for electronic records?
When equipped with the optional connectivity module and LabConnect™ software v3.2+, it supports audit trails, role-based access, and electronic signatures required under Part 11.
What is the maximum ambient temperature for stable operation?
The unit is rated for continuous operation within an ambient range of +10 °C to +35 °C, with thermal management optimized for unconditioned utility rooms or chemical storage corridors.
Are spare parts and service documentation available outside the EU?
Yes—Liebherr maintains global technical support channels, including English-language service manuals, ATEX maintenance checklists, and certified field service technicians trained to IEC 60079-17 standards.