16.92 EURexcl. VAT · import VAT and duties on delivery
Key specifications
| Lockout on flame detection failure | Lockout |
|---|---|
| Fuel | Gas |
| Firing stages | 1- or 2-stage |
| Cycle type | intermittent |
| Remote reset signal | Remote electrical restart capability |
| Undervoltage detection | Yes |
| Restart limitation | Limited |
| Digital signal processing | Yes, precise sequence control |
| Maximum continuous operation time | 24 hours |
249.30EUR
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Description
This is a Siemens LME39.100C2 control box for gas burners. It supports 1- or 2-stage burners and operates on an intermittent cycle with a maximum continuous operation time of 24 hours. It locks out on flame failure and offers remote electrical restart capability. It includes undervoltage detection, limited restart attempts, and digital signal processing for precise sequence control.
Further details
| Air Pressure Monitoring | Functional check of air pressure relay during start-up and operation |
|---|---|
| Driven Components | Ignition transformer, fuel valve, fan relay |
| Flame Detector | Ionization electrode, QRA flame sensor (with AGQ3), or QRC blue flame sensor |
| Interchangeability | Not interchangeable across series within the same brand |
| Monitored Inputs | Air pressure switches and temperature limits |
| Operating sequence | Pre-purge, ignition spark, fuel valve opening, flame proving |
| Status indication | Multi-color: fault, operational messages, flame presence |
Choosing and fitting
Replacement of this type of control box requires matching the exact series designation, supply voltage, safety time, pre-purge duration, flame detection method (ionisation, UV, or IR), and base or plug pattern. Controls from different series are not interchangeable even within the same brand; a mismatched safety time is a genuine safety hazard. Before installation, verify that the existing wiring base corresponds to the plug pattern and that the programmed safety times fit the burner design. Always confirm against the burner documentation.
All specifications
| Lockout on flame detection failure | Lockout |
|---|---|
| Fuel | Gas |
| Firing stages | 1- or 2-stage |
| Cycle type | intermittent |
| Remote reset signal | Remote electrical restart capability |
| Undervoltage detection | Yes |
| Restart limitation | Limited |
| Digital signal processing | Yes, precise sequence control |
| Maximum continuous operation time | 24 hours |
Part numbers
| SKU | LME39.100C2 |
|---|---|
| Additional article | 884.124.080 |
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