LGK16.322A17 Siemens Flame Safeguard

Overview

The Siemens LGK16.322A17 is a high-performance burner control designed for the supervision of multistage or modulating oil, gas, or dual-fuel burners. It features an integrated self-checking flame signal amplifier, making it a critical safety component for combustion plants operating in continuous or high-demand intermittent modes. Engineered for medium to large-capacity burners, this flame safeguard ensures reliable flame monitoring and sequencing while providing air pressure supervision for checked air damper control.

Features

• Self-checking flame signal amplifier provides continuous safety monitoring and detects faults in the detector or cables
• Supports continuous operation for burners running more than 14 hours without interruption
• Integrated air pressure supervision ensures the air damper is in the correct position during operation
• Plug-in design allows for easy installation and maintenance with compatible AGM17 terminal bases
• Built-in lockout reset button with a viewing window for status indication and warning lamps
• Robust impact-proof and heat-resistant plastic housing designed for industrial environments
• Exchangeable unit fuse provides added protection and ease of service

Specifications

• Model: LGK16.322A17
• Supply Voltage: AC 100-110 V (50/60 Hz)
• Prepurge Time (t1): 35.5 seconds
• Safety Time (TSA): 2 seconds
• Power Consumption: Approx. 3.5 VA
• Protection Rating: IP40
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 1.0 kg (2.2 lbs)
• Dimensions: 103 mm x 103 mm x 108.5 mm

Applications

• Supervision of multistage or modulating gas, oil, or dual-fuel forced draft burners
• Specifically designed for stationary air heaters (WLE) and flash-steam generators
• Ideal for industrial and commercial combustion plants where self-checking flame supervision is mandatory
• Compatible with Siemens QRA53 and QRA55 UV flame detectors or ionization probes
• Used in systems requiring high-capacity burner control and rigorous safety compliance, such as those following EN 298 standards