Sequence Controllers LFL1.333

Siemens Burner Control LFL1.333

The Siemens LFL1.333 is a burner control (sequence controller) for single-burner gas, oil or dual-fuel installations — on-off, multi-stage or modulating — with direct main-burner ignition or intermittent/interrupted pilot operation, and an electromechanical program switch visible through its indicator window. It runs a pre-purge time (t1) of 31 seconds and a safety time (TSA) of 3 seconds max., working with an ionization probe (flame rod) or QRA-series UV flame detectors, on a 230V~, 50-60Hz, 3.5VA supply, with a switching load rating of 4A per contact (5A total). Approved to DIN Rg. 5F091 and CE-0085AP0001. Manufactured by Siemens AG, D-76437 Rastatt, Germany, and supplied by R.K. Instruments & Controls.