Oil burner controls
Siemens
LOA
24.571C27
Landis & Staefa
Oil burner controls
Danfoss
OBC 82.11
057H8703
Landis & Staefa
Comments & Remarks: If only the upper part is replaced, it must be ensured that the LD/LDS is connected to the terminals 11 and 12 in the base part.