QRB1C-A050B40A Siemens Flame Sensor

Overview

The Siemens QRB1C-A050B40A is a highly sensitive photoresistive flame detector specifically designed for the supervision of yellow-burning oil flames. Functioning in the visible light spectrum, this compact sensor is primarily used in conjunction with Siemens oil burner controls in intermittent operation. It features a selected higher sensitivity level, indicated by its blue casing, to ensure reliable flame detection in demanding industrial and commercial combustion systems.

Features

• High-sensitivity photoresistive sensing element optimized for the visible light radiation of yellow-burning oil flames
• Compact design with a blue plastic housing signifying selected higher sensitivity
• Integrated 2-wire thermoplastic cable for direct electrical connection
• Suitable for both frontal and lateral (90 degree) illumination to accommodate various burner mounting configurations
• Vibration-free mounting capability when used with compatible flanges and clamps
• Designed for intermittent operation in industrial and commercial burner applications

Specifications

• Model: QRB1C-A050B40A
• Part Number: BPZ:QRB1C-A050B40A
• Spectral Sensitivity: Approximately 600 nm
• Casing Length: 50 mm
• Visible Cable Length: 50 cm
• Stripped Length: 40 mm
• Sensitivity Type: Selected (High)
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 0.032 kg
• Protection Rating: IP40

Applications

• Supervision of yellow-burning oil flames in intermittent operation
• Used with Siemens burner controls such as the LAL, LME7, LMO, LMV, and LOA series
• Integration into industrial and commercial oil burner systems
• Suitable for replacement in specialized heating equipment from manufacturers like Viessmann and Weishaupt