QRB1C-A048B40B Siemens Flame Sensor

Overview

The Siemens QRB1C-A048B40B is a compact, photoresistive flame detector designed for the supervision of yellow-burning oil flames in combustion systems. Operating within the visible light spectrum, this high-sensitivity sensor is an essential safety component used primarily in intermittent operation burner cycles. It is engineered to integrate seamlessly with Siemens burner controls, such as the LMV or LMO series, providing reliable flame monitoring by detecting the presence of light radiation from the flame.

Features

• High-sensitivity photoresistive element optimized for yellow-burning oil flames
• Equipped with a soft plastic plug for easy mounting into a hole with a lateral groove
• Integrated 2-wire thermoplastic cable for simplified electrical connection
• Compact design allowing for frontal or lateral (90 degree) illumination
• Durable housing rated at IP40 for protection against solid objects
• Spectral sensitivity maximum of approximately 600 nm to capture visible light radiation

Specifications

• Model: QRB1C-A048B40B
• Casing Length: 50 mm
• Visible Cable Length: 48 cm
• Stripped Lead Length: 40 mm
• Sensitivity: High (Selected)
• Protection Rating: IP40
• Operating Temperature Range: -20 C to +60 C
• Connection Type: 2-wire cable with ferrules and plug

Applications

• Supervision of yellow-burning oil flames in industrial and commercial burners
• Used in conjunction with Siemens burner controls (LAL, LME7, LMO, LMV, LOA)
• Ideal for intermittent operation burner systems
• Suitable for package burners, line burners, and various industrial heating applications
• Used by original equipment manufacturers (OEMs) for integration into specialized combustion equipment