LME41.053C2 Siemens Burner Control

Overview

The Siemens LME41.053C2 is a microprocessor-based burner control unit designed for the startup and supervision of 1- or 2-stage gas or gas/oil burners. It is primarily used in intermittent operation for burners of small to medium capacity. This robust controller ensures safe ignition, flame monitoring, and shutdown sequences, providing a critical safety function for industrial and commercial heating systems. It is engineered to replace legacy models like the LGD series and is compatible with Siemens plug-in bases for easy installation.

Features

• Microprocessor-based digital signal handling for accurate control sequences
• Undervoltage detection and air pressure supervision with functional checks
• Multicolor LED for real-time indication of fault status and operational messages
• Electrical remote reset facility for convenient troubleshooting
• Limitation of the number of repetitions/restarts to enhance system safety
• Controlled intermittent operation, requiring a shutdown at least once every 24 hours
• Compatibility with ionization probes or UV flame detectors (via ancillary units like AGQ3)

Specifications

• Model: LME41.053C2
• Supply Voltage: AC 220 V – 230 V (+10% / -15%)
• Frequency: 50/60 Hz (+/- 6%)
• Power Consumption: 12 VA
• Safety Time (TSA): 5 seconds
• Pre-purge Time (t1): 1 second
• Waiting Time (tw): 2.5 seconds
• Operating Temperature: -20 C to +60 C
• Protection Rating: IP40 (when installed)
• Weight: Approximately 0.13 kg

Applications

• Supervision of 1- or 2-stage gas or gas/oil burners with or without fans
• Integration into atmospheric burners and forced draft burners
• Use in commercial and industrial heating systems such as boilers and furnaces
• Startup and monitoring for thermal process plants and industrial production equipment
• Suitable for use by original equipment manufacturers (OEMs) in burner products