LGK16.322A27 Siemens Flame Safeguard

Overview

The Siemens LGK16.322A27 is a high-performance flame safeguard and burner control unit designed for the supervision of multi-stage or modulating gas, oil, or dual-fuel burners. Specifically engineered for continuous operation in medium to high-capacity industrial applications, it features an integrated self-checking flame signal amplifier. This advanced circuitry ensures maximum safety by initiating shut-off protocols not only for missing flame signals but also in the event of component failures within the detector, cables, or amplifier that could simulate a flame.

Features

• Self-checking flame supervision circuit for continuous or long-term intermittent operation
• Detects failures in the flame detector, detector cables, and signal amplifier for enhanced safety
• Plug-in design compatible with AGM17 and AGM17.1 terminal bases
• Integrated air pressure supervision for verified air damper control
• Robust housing made of impact-proof and heat-resistant black plastic
• Lockout reset button with integrated warning lamp and status indicator
• Exchangeable unit fuse for easy maintenance and protection against short circuits

Specifications

• Model: LGK16.322A27
• Supply Voltage: AC 220 V – 240 V (50/60 Hz)
• Pre-purge Time (t1): 35.5 seconds
• Safety Time (TSA): 2 seconds
• Pre-ignition Time: 4 seconds
• Post-purge Time: 12 seconds
• Protection Rating: IP40 (when mounted)
• Weight: Approximately 1.0 kg (2.2 lbs)
• Operating Temperature: -20 C to +60 C
• Compliance: Tested to EN298 (gas) and EN230 (oil), CE certified

Applications

• Supervision of high-capacity gas, oil, and dual-fuel forced draft burners
• Ideal for continuous operation burners (more than 24 hours of non-stop use)
• Stationary air heaters and flash-steam generators
• Plants requiring self-checking safety systems according to TRD 411 and TRD 412 regulations
• Compatible for use with QRA53/QRA55 UV detectors or ionization electrodes