Siemens LME23.351C2 Gas burner controller

General

LME are used for the startup and supervision of 1- or 2-stage gas burners or gas burners in intermittent operation. Flame supervision takes place via an ionization probe or a QRA flame detector with AGQ3.xA27 ancillary unit for forced draft gas burners, or, in the case of blue-burning flames, with a QRC blue-flame detector. In terms of housing dimensions, the LME... are identical with the burner control LGB… and LMG… burner controls.

Features

• Applications in accordance with EN 676: Automatic forced draft burners for gaseous fuels
• Type-tested and approved in accordance with DIN EN 298  
• Undervoltage detection
• Air pressure supervision with functional check of the air pressure switch during startup and operation
• Electrical remote reset facility
• Multicolor indication of fault status and operational status messages
• Limitation of the number of repetitions
• Accurate control sequence thanks to digital signal handling
• Controlled intermittent operation after a maximum 24 hours of continuous operation

Specifications

• Make: Siemens
• Model: LME23.351C2
• Mains voltage: AC 230 V +10%/-15%
• Mains frequency: 50...60 Hz ±6%
• Power consumption: 12 VA
• External primary fuse: (Si) Max. 10 A (slow)
• Mounting position: Optional
• Input current at terminal 12: Max. 5 A
• Weight: Approx. 160g
• Degree of protection: IP40 (to be ensured through mounting)