LME71.111A1PKG-PRG24 Siemens Flame Safeguard

Overview

The Siemens LME71.111A1PKG-PRG24 is a high-performance, microprocessor-based flame safeguard assembly designed for the supervision and control of 1- or 2-stage gas forced draft burners. This specific package is preprogrammed (PRG24) and includes the LME71.000A1 basic unit, the PME71.111A1 program module, and the AGG3.710 connector plug set. It ensures safety by managing the burner startup and continuous operation, energizing safety shutoff valves while monitoring the flame via UV scanner or flame rod to prevent hazardous conditions in industrial thermal process applications.

Features

• Comprehensive safety monitoring for gas burners with integrated programmable purge cycles
• Multi-color LED signal lamp provides clear status and fault notifications for easy troubleshooting
• Digital signal handling ensures accurate control sequences and repeatable performance
• Includes Proof of Closure (POC) input to monitor valve status for enhanced combustion safety
• Electrical remote reset capability allows for convenient system management from a distance
• Built-in display interface for service, error, and status information monitoring
• Undervoltage detection and air pressure supervision with function check during startup

Specifications

• Model: LME71.111A1PKG-PRG24
• Voltage: AC 120 V (50/60 Hz)
• Program Module: PME71.111A1 (included)
• Included Components: LME71.000A1 basic unit and AGG3.710 plug set
• Operation Mode: Intermittent (controlled shutdown every 24 hours)
• Flame Detection: Supports UV detectors (QRA2, QRA4, QRA10) or ionization probes
• Protection Rating: IP40 (when properly mounted)
• Shipping Weight: Approximately 1.2 to 1.7 lbs

Applications

• Supervision of 1- or 2-stage gas forced draft burners in commercial and industrial settings
• Industrial thermal process applications requiring precise burner control and safety monitoring
• Suitable for atmospheric burners of medium to high capacity
• Used in HVAC and boiler systems for reliable fuel-air ratio and safety shut-off control
• Compatible with systems requiring Modbus communication or remote display options for advanced monitoring