QRB1B-A035B40A1 Siemens Flame Sensor

Overview

The Siemens QRB1B-A035B40A1 is a high-sensitivity, photo-resistive flame detector designed for the supervision of yellow-burning oil flames. Primarily used in intermittent operation, this compact sensor works in conjunction with burner controls to detect visible light radiation in the 600 nm spectral range. Its design features a plug-in connection and an integrated thermoplastic cable, making it a reliable component for smaller burner systems where precise flame monitoring is essential for safety and efficiency.

Features

• High sensitivity photo-resistive element optimized for yellow-burning oil flames
• Compact design with a 50mm housing length for versatile mounting
• Integrated 35cm 2-wire thermoplastic cable with 40mm stripped ends
• Plug-in design with a soft plastic plug for easy installation into burner holes
• Red casing color for easy identification of high-sensitivity specifications
• Suitable for both frontal and lateral (90 degree) illumination

Specifications

• Model: QRB1B-A035B40A1
• Part Number: BPZ:QRB1B-A035B40A1
• Sensitivity: High
• Housing Length: 50 mm
• Cable Length: 35 cm
• Stripped Length: 40 mm
• Spectral Sensitivity: Approximately 600 nm
• Operating Temperature: -20 C to +60 C
• Protection Rating: IP40
• Weight: Approximately 20-35g

Applications

• Supervision of yellow-burning oil flames in commercial and industrial burners
• Intermittent burner operations requiring frequent safety checks
• Integration with Siemens burner controls such as LAL, LME7, LMO, LMV, and LOA series
• Use in HVAC systems, boilers, and furnace applications requiring visible light spectrum flame detection