Siemens Flame monitor LAE10

This Siemens LAE10 control box is a flame monitor for burners running on liquid fuel and intended for intermittent operation. It supervises combustion using a silicon photoelectric cell detector RAR9. The device controls the burner's pre-purge, ignition transformer, fuel valve, and flame verification within the safety time. If the flame is not proven in that period, the control locks out and must be reset manually.

Replacement controls of this type are selected by the exact series designation, supply voltage, safety time, pre-purge time, and the flame detection method. The mounting base or plug pattern must match the existing wiring. Burner controls are generally not interchangeable across series, even within the same brand. Before ordering, verify the full type code printed on the label and cross-check it against the burner manufacturer's specification.