Siemens QRA2M is a high-sensitivity UV flame detector for gas and yellow- or blue-burning oil flames in intermittent operation.
Product Specification
- Metallized plastic housing with a green terminal cover.
- Customer-supplied detector cable; recommended cable type H05VV-F 2 × 0.75 mm².
- QRA2M(1) and QRA2M(2) are mounting-kit variants. The base QRA2M does not include the flange and clamp.
- Average UV-cell life is approximately 10,000 hours at a maximum ambient temperature of +50 °C.
- Minimum flame current and permissible cable length are specified by the connected burner control.
Control Compatibility
LME7; LFL; LMV2 / LMV3; LFS1.
Related Model
Siemens QRA2 is the normal-sensitivity version.

