Siemens Combustion QRI2B2.B180B1 Flame Detector R-407A eliminating the need for shaft

eliminating the need for shaft modifications or field adjustments during installation

While the electrical contacts are typically SPST (Single Pole Single Throw) and reversible for simple switching

natural gas but adjustable from 3

mounting bolt pattern

making it a reliable OEM replacement motor for direct drive blowers and exhaust fans

Siemens Combustion QRI2B2.B180B1 Flame Detector R-407A eliminating the need for shaftThe Siemens QRI2B2. B180B1 is a high sensitivity infrared flame detector designed for the supervision of gas, oil, or coal flames in large scale industrial or commercial burner systems. Engineered for lateral (side viewing) illumination, it features a 90 degree light entry path, making it the standard choice for specific burner mounting configurations where frontal line of sight is obstructed. This self checking sensor operates within a 1 to 3 m