LFS1.11A2 Siemens Flame Detector Relay
$655.80
The Siemens LFS1.11A2 is a digital flame detector relay designed for the supervision of oil flames in industrial and commercial burner applications. Engineered for continuous operation, this compact device acts as a flame safeguard by signaling the presence of a flame to a programmable logic controller (PLC) or other burner control units like the Siemens LEC1. It serves as a modern, high-performance replacement for legacy models such as the LAE10, offering enhanced safety features and a small footprint to save panel space.
Overview
The Siemens LFS1.11A2 is a digital flame detector relay designed for the supervision of oil flames in industrial and commercial burner applications. Engineered for continuous operation, this compact device acts as a flame safeguard by signaling the presence of a flame to a programmable logic controller (PLC) or other burner control units like the Siemens LEC1. It serves as a modern, high-performance replacement for legacy models such as the LAE10, offering enhanced safety features and a small footprint to save panel space.
Features
- Designed for continuous operation mode with a high safety integrity level up to SIL3
- Compatible with Siemens RAR9 photocell detectors for precise oil flame supervision
- Potential-free signal contacts with double insulation for increased safety and reliability
- Integrated 0 to 10 V DC analog output for monitoring and displaying flame signal strength
- Multicolor LED signal lamp provides immediate visual feedback on the flame status
- BCI communication interface allows for flexible parameterization and data access via units like the AZL2
- Robust and compact plug-in design simplifies installation and maintenance in industrial environments
Specifications
- Model: LFS1.11A2
- Mains Voltage: AC 230 V (-15% to +10%)
- Mains Frequency: 50/60 Hz (+/- 6%)
- Power Consumption: Approximately 4.5 VA
- Safety Rating: SIL3 capable (with RAR9 detector)
- Operating Life: Up to 1,000,000 burner startup cycles at reduced loads
- Degree of Protection: IP40 (when installed with appropriate cable entry)
- Operating Temperature: -20 C to +60 C
- Weight: Approximately 0.45 kg (1.0 lb)
Applications
- Supervision of oil flames in industrial burners and combustion plants
- Used in maritime applications as a certified ship burner flame safeguard
- Ideal for multi-flame supervision systems where several burners are monitored individually but controlled centrally
- Suitable for plants with manual startup as a flame indication unit
- Integration with fail-safe PLCs or burner controls such as the Siemens LMV52 or LEC1 series
| Weight | 2 lbs |
|---|---|
| Dimensions | 7 × 5 × 4 in |
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