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.


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