Siemens LFL1.335 A17 110v Burner Control BoxSiemens LFL1.335 A17 110v Burner Control Box
Siemens LFL1.335 A17 110v Burner Control Box
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A Direct Plug In Replacement FOR LGK & LFL Control Boxes

A Direct Replacement for the LGK and LFL Control Boxes, with solid state internals and advanced fault finding features. 

Siemens Landis LFL1.335 A17 110V Burner Control Box

Alternate Part Number: LFL.335.110


The LFL1.335 Control Box is designed for gas, oil or dual-fuel forced draft burners of medium to high capacity. This Siemens Box is designed for multistage or modulating burners in intermittent operation; for safety reasons, at least one controlled shutdown must take place every 24 hours. With checked air damper control. Flame supervision – with UV detectors or with ionisation probe.

LFL1.335 A17 Control Box Design Specifications

If on startup, the required input signals are not present, the burner control interrupts the startup sequence at the points marked by symbols and initiates lockout where required by safety regulations. The symbols used in this Data Sheet correspond to those on the burner control’s lockout indicator.


  • Control and supervision of forced draft burners of expanding flame and interrupted pilot construction
  • For medium to high capacity
  • For intermittent operation (at least one controlled shutdown every 24 hours)
  • Universally applicable for multistage or modulating burners
  • For use with dual-fuel burners
  • For use with stationary air heaters


  • Operating Voltage: 110V
  • Made of impact-proof and heat-resistant black plastic
  • Lockout reset button with a viewing window showing
  • Plug-in base and connectors of the LFL1.335 A27 are designed such that only LFL1 type burner controls can be plugged in
  • With 24 connection terminals
  • IP Rating: IP40
  • Temperature: -20° C - +60° C

LFL1.335 Control Box Dimensions

Control Boxes Height Width Depth
LFL1.335 A27 240V 123mm 103mm 103mm
LFL1.335 A17 110V 123mm 103mm 103mm


Please click the link below to download the Technical Manual for this product:

Siemens LFL1.335 Control Box


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