Laboratory freezer SFTfg 1501 Performance

undercounterexplosion-proofair-cooled

Overview
This undercounter laboratory freezer conforms to the ATEX directive and is designed for the safe, reliable storage of closed containers with flammable substances that could form explosive atmospheres. It combines temperature stability, energy-efficient SmartFrost cooling and options for remote monitoring.

Key product attributes

• Product dimensions (H/W/D): 81.9 / 59.7 / 60.5 cm
• Energy consumption (24 h): 0.492 kWh / 24h
• Adjustable temperature range: -9 °C to -30 °C
• Total gross volume: 101 l
• Total net volume: 73 l
• Energy consumption per year: 180 kWh/a

Features

• ±5 °C temperature stability — minimal fluctuation to protect sensitive samples.
• Compliance with ATEX — interior classified <Ex> II 3 G Ex ec IIC T6 (Zone 22) for closed-container storage of flammable substances.
• SmartFrost technology — reduced frost build-up; evaporator insulated in foam for even cooling and energy efficiency.
• Retrofittable WiFi/LAN interface — can be connected to external systems (e.g. SmartMonitoring) via an optional interface.
• Designed for a service life of 15 years — long spare-parts availability and durable materials.
• Easy-to-clean seamless polystyrene interior with large radii for hygienic maintenance.

Additional features / functionalities

• Alarm relay — configurable forwarding of alarms to control centres or building management systems.
• Antibacterial lever handle — easy-turn mechanism with antimicrobial agent (ISO 22196 referenced).
• Intuitive menu navigation — flush control panel in the door; symbol/voice guidance in multiple languages; touch buttons and Touch & Swipe usable with gloves.
• Interchangeable door hinge — door can be changed from right to left without additional parts.
• Replaceable door seal — plug-in seal replaceable without tools.
• Evaporator cover — prevents product contact with cold surfaces and improves temperature stability.
• Connection frame / side-by-side kit / stacking kit / worktop accessories available to assist installation.
• 15 years spare parts availability for functional and storable parts (retroactive from 1 Jan 2021 for produced appliances).
• Alarm test function — test internal and externally connected alarms without interrupting cooling.
• Cleanroom compatible — tested to DIN EN ISO 14644 (ISO class 7 declared).
• Hidden customer and technician menus — code-protected levels for status and service adjustments.
• Min./max. temperature recording and reminder functions for cleaning/calibration.
• Settings password protection for secure operation.

Technical specifications

• Model type: Laboratory freezers with spark-free interior
• Classification: Performance
• GTIN / EAN: 9005382268452
• Distribution item no.: 994870351
• Energy consumption (per year): 180 kWh/a
• Energy consumption (24 h): 0.492 kWh / 24h
• Measurement methodology for energy consumption: Empty measurement -20 °C / Ambient +25 °C
• Noise level: 40 dB
• Refrigerant: R 600a
• Heat emission: 215 kJ / h
• Heat distribution system: Air cooling
• Rated power consumption: 110.0 W
• Voltage: 220-240 V ~
• Frequency: 50 Hz
• Maximum fluctuation: 3.3 °C
• Gradient: 7.4 °C
• Control unit: Touch
• Power failure alarm: when mains power returns
• Malfunction warning: optical and acoustical
• Positive / negative temperature deviation from setpoint: +3.2 K / -3.2 K
• Heating from -20 °C to -15 °C (empty, +25 °C TU): 30 min
• Cooling time from +25 °C to -20 °C (empty, +25 °C TU): 62 min
• Recovery time after 1 min door opening (empty, +25 °C TU, EN 60068-3): 18 min
• Potential-free contact: yes
• SmartMonitoring-enabled: Yes (SmartModule)
• Connectivity solution: retrofittable (WLAN/LAN optional)
• Min./max. temperature recording: Yes
• Alarm history: No
• Product sensor: No
• Gross volume (freezing): 101 l
• Net volume (freezing): 73 l
• Adjustable temperature range (freezer): -9 °C to -30 °C
• Temperature display: external digital
• Cooling technology: SmartFrost (static cooling system)
• Defrosting method: manual
• Interior light: none
• Drawers in freezer compartment: 0
• Number of storage shelves: 3 (2 adjustable)
• Product dimensions (H/W/D): 81.9 / 59.7 / 60.5 cm
• Exterior dimensions with packaging (H/W/D): 890.0 / 615.0 / 710.0 mm
• Weight without packaging: 36.30 kg
• Weight with packaging: 38.40 kg
• Load-bearing capacity of shelf areas (freezer): 40 kg
• Net width of shelves: 38 cm
• Net depth of storage shelves: 34.7 cm
• Certifications: IEC 60068-3 / IEC 60079-7 / IEC 61010-1 / IEC 61010-2-011 / IEC 61326-1
• ATEX classification: <Ex> II 3 G Ex ec IIC T6 Gc
• Clean room class according to ISO EN 14644-1: ISO class 7
• Replaceable door seal: Yes
• Door hinge: Right (customer-changeable)
• Self-closing door: Yes
• Type of lock: mechanical
• Connector cable length: 3,000 mm