The Siemens QRB1A-A150B70A provides a 150 cm fixed cable with the compact 50 mm QRB1A housing. It is a normal-sensitivity oil-flame detector with ferruled conductors and 70 mm stripped cable ends.
Product Specification
- Normal sensitivity; black 50 mm detector housing.
- Fixed 150 cm cable with 70 mm stripped ends and ferruled conductors.
- Two-core stranded copper cable, 2 × 0.75 mm².
- Supplied without a soft mounting plug, flange or clamp.
- Frontal and 90-degree lateral flame viewing.
- IP40 protection.
- Safety class II; operating ambient temperature −20 to +60 °C.
- Maximum spectral sensitivity: approximately 600 nm.
Control Compatibility
Siemens lists QRB1 combinations with LAL, LME7, LMO, LMV and LOA control families for yellow oil-flame supervision. The selected burner control defines the detector sensitivity and permissible cable length.
Model Comparison
QRB1A-A070B70A: The 70 cm version has the same sensitivity and housing length, with a shorter cable.
Compare sensitivity, housing and cable options in the QRB1 series selection guide.
