LME73.812A1PKG Siemens Flame Safeguard

Overview

The Siemens LME73.812A1PKG is a comprehensive flame safeguard burner control package designed for the startup and supervision of medium to high-capacity forced draft gas or oil burners. This industrial-grade assembly includes the LME73.000A1 burner control base, the PME73.812A1 program module, and a complete connector plug kit. It is a microprocessor-based system that ensures safe combustion by providing integrated actuator control and rigorous flame monitoring, supporting both intermittent and continuous operation modes.

Features

• Integrated Actuator Control: Manages an air damper actuator via a 3-position controller or analog signal, featuring an independent ignition position above low-fire.
• Flexible Flame Supervision: Compatible with ionization probes or UV flame detectors such as the QRA2, QRA4, and QRA10 series.
• Advanced Diagnostics: Features a built-in 3 x 7-segment display for service, error, and status information, along with a multi-color LED signal lamp.
• Safety and Interlocks: Includes a BC interface for connecting display units or PCs, an electrical remote lockout reset, and air pressure supervision with functional checks.
• Modular Design: The plug-in program module (PME) allows for specific burner sequences and easy field replacement or servicing.

Specifications

• Model: LME73.812A1PKG
• Supply Voltage: 110V AC (50/60 Hz)
• Power Consumption: Approximately 12 VA
• Safety Response Time: Loss of flame response in less than 1 second (FFRT)
• Protection Rating: IP40 (when mounted correctly)
• Operating Temperature: -20 C to +60 C
• Design Lifetime: 250,000 burner startup cycles (approx. 10 years)
• Approvals: UL, FM, CSA, and CE compliant

Applications

• Supervision of modulating or multistage forced draft gas and oil burners.
• Industrial thermoprocessing equipment and commercial heating plants.
• Packaged burner systems requiring closed-loop actuator control for purge and ignition positions.
• Integration into boiler rooms and furnaces where independent ignition load positioning is required.