QRB1A-A048B70B Siemens Flame Sensor

Overview

The Siemens QRB1A-A048B70B is a compact, photoresistive flame detector designed for the supervision of yellow-burning oil flames. Engineered for use with Siemens burner controls, this sensor monitors the visible light spectrum of oil flames during intermittent burner operation. The device features a black housing that signifies its normal sensitivity level, ensuring reliable detection and safety for commercial and industrial heating systems. It is constructed with a durable thermoplastic cable and is specifically optimized to match the spectral sensitivity of oil flame radiation.

Features

• Photoresistive sensing element with a maximum spectral sensitivity of approximately 600 nm
• Normal sensitivity level indicated by the black casing color
• Compact design for easy integration into various burner types
• Equipped with a soft plastic plug for secure and simple mounting into a burner hole with a lateral groove
• Integrated two-wire thermoplastic cable for straightforward electrical connection
• Designed for both frontal and lateral (90 degree) illumination
• High-quality construction built to withstand harsh environmental conditions in heating applications

Specifications

• Model: QRB1A-A048B70B
• Part Number: BPZ:QRB1A-A048B70B
• Sensitivity: Normal
• Casing Color: Black
• Casing Length: 50 mm
• Visible Cable Length: 48 cm
• Stripped Length: 70 mm
• Protection Rating: IP40
• Operating Temperature Range: -20 C to +60 C
• Weight: Approximately 0.012 kg
• Origin: Made in Germany

Applications

• Supervision of yellow-burning oil flames in commercial and industrial burners
• Used in conjunction with Siemens burner controls such as the LAL, LME7, LMO, LMV, and LOA series
• Suitable for intermittent burner operation where flame monitoring in the visible light spectrum is required
• Ideal for HVAC and boiler systems requiring precise and reliable flame detection for safety and performance optimization