LGK16.622A27 Siemens Flame Safeguard

Overview

The Siemens LGK16.622A27 is a high-performance flame safeguard and burner control unit designed for the supervision of multi-stage or modulating gas, oil, or dual-fuel forced draft burners. Specifically engineered for medium to high-capacity industrial burners, it features a self-checking flame signal amplifier to support continuous operation. This robust unit ensures maximum safety by detecting faults in the flame detector, cables, or the signal amplifier itself, initiating safety shutdowns if a simulated flame signal is detected. It is a critical component for combustion plants where high safety standards and reliable long term performance are required.

Features

• Self-checking flame supervision circuit monitors for detector or amplifier failures
• Designed for continuous operation (more than 24 hours without shutdown)
• Integrated air pressure supervision for checked air damper control
• Plug-in design with a shock-resistant and heat-resistant black plastic housing
• Visual lockout indicator, fault signal lamp, and integrated reset button
• Exchangeable unit fuse with an included spare fuse for easy maintenance
• High immunity to interference and electromagnetic compatibility (CE certified)

Specifications

• Model: LGK16.622A27
• Operating Voltage: AC 220 V (-15%) to 240 V (+10%)
• Mains Frequency: 50/60 Hz
• Pre-purge Time (t1): 65 seconds
• Safety Time (TSA): 2 seconds
• Pre-ignition Time: 4 seconds
• Post-purge Time: 12 seconds
• Weight: Approximately 0.5 kg to 1.0 kg
• Protection Rating: Designed for integration with AGM16/AGM17 bases
• Operating Temperature: -20 C to +60 C

Applications

• High-capacity forced draft burners for gas, oil, or dual-fuel systems
• Continuous combustion processes in industrial boilers and thermal plants
• Multi-stage or modulating burners requiring precise sequencing and monitoring
• Steam boiler plants complying with specific safety regulations like TRD 411/412
• Retrofitting existing plants that currently use LFL1 series burner controls