Siemens LGB21.330A27 control box

Additional information: 0005030011 Siemens LGB21.330A27 electromechanical burner control is used for start-up and control of single- and two-stage gas or combined gas/oil burners in intermittent operation. Pre-ventilation time: 30 s. Safety time: 3 s. Time before ignition: 2 s.