QRB1B-B035B40A Siemens Flame Sensor

Overview

The Siemens QRB1B-B035B40A is a high-sensitivity photoresistive flame detector designed for the supervision of yellow-burning oil flames. It is primarily used in conjunction with oil burner controls for intermittent operation. This compact sensor detects the visible light spectrum emitted by oil flames and features a soft plastic plug for easy mounting on the burner. The QRB1B series is engineered for high-demand environments, ensuring reliable flame monitoring to prevent the accumulation of unburned fuel and potential safety hazards.

Features

• High-sensitivity photoresistive element optimized for yellow-burning oil flames
• Integrated soft plastic plug for firm and secure mounting in a standard burner hole
• Visible red casing to indicate increased sensitivity and distinguish it from normal models
• Durable construction with a 65mm casing length for specific mounting requirements
• Includes a 2-wire thermoplastic cable with ferrules for electrical connection
• Spectral sensitivity peaking at approximately 600 nm to capture visible light radiation
• Suitable for both frontal and lateral (90 degree) light entry

Specifications

• Model: QRB1B-B035B40A
• Sensitivity: High
• Casing Color: Red
• Casing Length: 65 mm
• Cable Length: 35 cm
• Stripped Length: 40 mm
• Protection Rating: IP40
• Temperature Range: -20 C to +60 C
• Spectral Sensitivity: Maximum approximately 600 nm
• Connection: 2-wire thermoplastic cable with ferrules, no plug

Applications

• Supervision of yellow-burning oil flames in commercial and industrial burners
• Used in intermittent operation systems with Siemens burner controls
• Compatible with burner control types: LAL, LME7, LMO, LMV, and LOA
• Ideal for diesel burner fire detection and package burner systems
• Suitable for OEMs integrating flame detectors into specialized combustion equipment