LME73.812A2PKG Siemens Flame Safeguard

Overview

The Siemens LME73.812A2PKG is a comprehensive, microprocessor-based flame safeguard package designed for the startup and supervision of multistage or modulating forced draft burners and atmospheric gas burners. This pre-assembled kit includes the LME73.000A2 basic unit, the PME73.812A2 program module, and a complete plug kit. Engineered for intermittent operation, this system provides flexible burner control by allowing for adjustable purge times and integrated actuator control with an independent ignition position. Its robust design is ideal for medium to large-capacity industrial and commercial combustion applications, offering targeted diagnostics through a multi-color LED and 7-segment display.

Features

• Includes LME73.000A2 basic unit, PME73.812A2 program module, and necessary connection plugs
• Integrated actuator control for driving and proving positions during purge and ignition cycles
• Multi-color LED and 3 x 7-segment display for clear operating status and error notification
• Adjustable safety parameters including programmable purge times and safety times
• Undervoltage detection and electrical remote lockout reset facility for enhanced safety
• Digital signal handling ensures accurate control sequences and repeatable performance
• Compatible with various flame sensors including ionization probes and UV detectors
• Robust housing designed for a lifetime of approximately 250,000 burner startup cycles

Specifications

• Model: LME73.812A2PKG
• Mains Voltage: AC 220 V – 230 V (50/60 Hz)
• Program Module: PME73.812A2 (with independent ignition position)
• Operating Mode: Intermittent (at least one controlled shutdown every 24 hours)
• Protection Rating: IP40 (when properly mounted)
• Operating Temperature: -20 C to +60 C
• Power Consumption: Approximately 12 VA
• Actuator Control: 3-position step signal or modulating control
• Weight: Approximately 5 lbs (packaged)

Applications

• Supervision of multistage or modulating forced draft burners for liquid or gaseous fuels
• Industrial thermoprocessing equipment and high-capacity boiler systems
• Direct or pilot-ignited burner configurations requiring precise actuator positioning
• Packaged burner systems and applications utilizing ratio regulators
• Replacement or new installation in HVAC systems requiring CE-approved combustion controls