Overview
The Siemens LME11.330C2 is a high-performance burner control unit designed for the startup and supervision of 1-stage gas or gas/oil burners of small to medium capacity. Engineered for intermittent operation, this microcomputer-based controller ensures a safe and precise combustion process by utilizing ionization-based flame detection. It is a critical safety component used primarily in industrial and commercial HVAC systems, offering reliable monitoring and control of burner sequences to prevent hazardous operating conditions.
Features
- Microcomputer-based control with fixed time and phase programs for accurate signal handling
- Integrated ionization flame supervision for reliable flame detection during operation
- Multicolor LED status indicator for clear communication of fault and operational messages
- Electrical remote reset facility for efficient system management and lockout recovery
- Undervoltage detection and air pressure supervision with functional checks during startup
- Compact design with IP40 protection class rating, suitable for space-constrained installations
- Limitation of repetition cycles to enhance system safety and prevent unnecessary strain
Specifications
- Model: LME11.330C2
- Supply Voltage: AC 230 V (-15%/+10%), 50/60 Hz
- Burner Stages: 1-stage
- Pre-purge Time (t1): 30 seconds
- Safety Time (TSA): 3 seconds
- Pre-ignition Time (t3): 2 seconds
- Post-ignition Time (t3n): 2.5 seconds
- Power Consumption: 12 VA
- Operating Temperature: -20 C to +60 C
- Weight: Approximately 0.16 kg (0.35 lbs)
- Protection Class: IP40 (when installed correctly)
Applications
- Supervision of 1-stage gas or gas/oil burners in intermittent operation
- Suitable for forced draft burners in commercial and industrial heating plants
- Integrated into burner systems by OEMs for automated combustion control
- Compatible with various burner brands including Riello, Bentone, Ecoflam, and Lamborghini
- Ideal for atmospheric burners and systems requiring ionization-based flame monitoring
- Used in boiler systems and thermal processing equipment up to 120 kW capacity


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