QRB1A-A033B40B Siemens Flame Sensor

Overview

The Siemens QRB1A-A033B40B is a compact photoresistive flame detector designed for the supervision of yellow-burning oil flames in the visible light spectrum. This high-precision sensor is primarily utilized in intermittent operation burner systems, working in conjunction with Siemens burner controls to ensure reliable flame detection and safety. It features a robust design with a black housing indicating normal sensitivity and comes equipped with a soft plastic plug for secure mounting.

Features

• Photoresistive light-sensitive element with a spectral sensitivity maximum of approximately 600 nm
• Integrated two-wire thermoplastic cable for easy connectivity
• Normal sensitivity calibrated for yellow-burning oil flames
• Compact 50 mm housing length suitable for tight mounting spaces
• Soft plastic plug design with sealing and securing ribs for firm placement in burner holes
• Vibration-proof mounting ensured by guide springs and specific plug geometry
• Capability for both frontal and lateral (90 degree) light entry

Specifications

• Model: QRB1A-A033B40B
• Part Number: BPZ:QRB1A-A033B40B
• Sensitivity: Normal
• Casing Color: Black
• Casing Length: 50 mm
• Visible Cable Length: 33 cm
• Stripped Cable Length: 40 mm
• Protection Rating: IP40
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 0.014 kg to 0.035 kg
• Connection: 2-wire cable with ferrules

Applications

• Supervision of yellow-burning oil flames in industrial and commercial burners
• Used with Siemens burner controls such as the LAL, LME7, LMO, LMV, and LOA series
• Suitable for burners requiring intermittent operation supervision
• Integrated into original equipment manufacturer (OEM) products for oil-fired heating equipment