Siemens Combustion QRA73.A17 Detector 318518-761 Antunes HLGP-A switches should be

Antunes HLGP-A switches should be mounted horizontally with the gas inlet stems pointing downward

Snap-Action Bimetal Disc: Engineered for fast contact separation

Is this module moisture resistant for outdoor use

ensure you verify the insertion length and thread pitch for your specific manifold

and Pennant series units

Siemens Combustion QRA73.A17 Detector 318518-761 Antunes HLGP-A switches should beThe Siemens QRA73. A17 is a precision engineered UV flame detector built for continuous supervision in high demand industrial and commercial combustion environments. Designed for seamless integration with LMV5 and LME7 burner management systems, this detector operates on a 110V 120V AC power supply and provides reliable monitoring for gas flames, blue burning oil flames, and ignition sparks. Featuring an integrated self checking mechanism, the unit