The R7247B and C dynamic self check rectification amplifiers are solid state plug-in units. They respond to a flame detector signal and indicate the presence of a flame when used with flame safeguard controls (such as R4140, R4075C, D, E and R4138C,D) and appropriate flame detectors. R7247B is for use with rectifying flame rods (for gas burners); includes arc gap to protect against damage from high voltage ignition interference.
Flame Failure Response Time (sec)
2 to 4 sec
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