QRB1B-C036B40A Siemens Flame Sensor

Overview

The Siemens QRB1B-C036B40A is a high-sensitivity, photoresistive flame detector designed for the supervision of yellow-burning oil flames. It is used primarily in combination with Siemens burner controls for intermittent operation. This compact sensor features a red housing and a soft plastic plug for easy mounting directly onto the burner. It operates by detecting visible light radiation emitted by oil flames, ensuring safe and reliable flame monitoring for industrial and commercial burner systems.

Features

• High sensitivity photoresistive element optimized for the visible light spectrum of oil flames
• Maximum spectral sensitivity of approximately 600 nm
• Integrated soft plastic plug for secure mounting in a standard hole with a lateral groove
• Red housing for easy identification of high-sensitivity type
• Suited for both frontal and lateral (90 degree) illumination
• Guide spring design to ensure correct alignment with the flame
• Infused 2-wire thermoplastic cable with ferrules

Specifications

• Model: QRB1B-C036B40A
• Sensitivity: High
• Housing Color: Red
• Casing Length: 105 mm
• Visible Cable Length: 36 cm (360 mm)
• Stripped Cable Length: 40 mm
• Mounting: Soft plastic plug (no flange or clamp required)
• HS Code: 90273000
• Country of Origin: Germany

Applications

• Supervision of yellow-burning oil flames in intermittent operation
• Used with Siemens burner controls such as LAL, LME7, LMO, LMV, and LOA series
• Integration into oil burner systems for residential, commercial, and industrial heating
• Ignition spark proving in oil-fired equipment