LME41.092C2 Siemens Burner Control

Overview

The Siemens LME41.092C2 is a high-performance, microprocessor-based burner control unit designed for the startup and supervision of 1-stage gas burners in intermittent operation. It serves as a reliable replacement for the legacy Siemens LGD12.01A27 model. Engineered for small to medium-capacity burners, this control box ensures safe combustion by monitoring the flame via an ionization probe or a QRA flame detector with an AGQ3 ancillary unit. Its digital signal handling provides a stable and accurate control sequence, making it a critical safety component for industrial and commercial heating systems.

Features

• Digital signal processing for highly accurate and repeatable control sequences
• Undervoltage detection to prevent improper operation during power fluctuations
• Integrated air pressure supervision with functional checks during startup and operation
• Multicolor LED status indicator providing clear fault and operational status messages
• Electrical remote reset facility for efficient system management
• Controlled intermittent operation with a mandatory safety shutdown after 24 hours of continuous use
• Robust plastic housing designed to be identical in dimensions to LGB and LMG series controls for easy retrofitting

Specifications

• Model: LME41.092C2
• Supply Voltage: AC 230 V (+10% / -15%)
• Frequency: 50 to 60 Hz
• Power Consumption: 12 VA
• Waiting Time (tw): Max 2.5 seconds
• Prepurge Time (t1): Min 1 second
• Safety Time (TSA): Max 10 seconds
• Preignition Time (t3): Approx 1 second
• Post-ignition Time (t3n): Approx 9 seconds
• Degree of Protection: IP40 (when mounted)
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 160g

Applications

• Supervision of 1-stage atmospheric gas burners with or without fan assistance
• Suitable for use in gas boilers, manufacturing plants, and power generation facilities
• Integration by Original Equipment Manufacturers (OEMs) into gas-fired equipment
• Ideal for upgrading or replacing older Siemens LGB or LMG series burner controls
• Used in systems requiring ionization probes or UV flame detectors for blue-burning flames