LME73.812A1PKG-PRG1 Siemens Flame Safeguard

Overview

The Siemens LME73.812A1PKG-PRG1 is a microprocessor-based burner control assembly designed for the supervision and management of modulating or multistage forced draft gas or oil burners. This package includes the LME73.000A1 basic unit, the PME73.812A1 program module, and a complete plug kit. It is specifically engineered to provide flexible burner control with independent ignition positioning and integrated actuator control, making it a reliable safety component for medium to large capacity industrial combustion systems.

Features

• Digital signal handling ensures accurate control sequences and reliable timing
• Integrated 3×7-segment display provides real-time service, error, and status information
• Multicolor LED signal lamp facilitates quick diagnosis of operating and fault notifications
• Features modulating actuator control with an independent ignition position for optimized burner start-up
• Built-in undervoltage detection and electrical remote lockout reset facility
• Air pressure supervision includes a functional check of the air pressure switch during start and operation
• BC interface allows for connection to an external operator display (AZL2) or PC for advanced parameterization

Specifications

• Model: LME73.812A1PKG-PRG1
• Operating Voltage: AC 120 V (50/60 Hz)
• Components: LME73.000A1 unit, PME73.812A1 module, and AGG3.710 plug set
• Operation: Intermittent (requires a controlled shutdown every 24 hours)
• Flame Detection Compatibility: Ionization probe, UV detectors (QRA2, QRA4, QRA10), or photoresistive sensors (QRB series)
• Protection Rating: IP40 (when properly installed)
• Weight: Approximately 5 lbs (2.27 kg)
• Approvals: UL, FM, CSA, and CE certified

Applications

• Supervision of modulating or multistage forced draft gas or oil burners
• Ideal for packaged burner applications or systems utilizing a ratio regulator
• Suitable for medium to large capacity atmospheric gas burners
• Used in industrial heating, commercial boiler systems, and thermal process plants requiring precise air-damper or fuel-valve control
• Proven for use in systems requiring linkageless control through integrated SQM actuator pairing