Description
The Siemens QRA2(1) is a proven ultraviolet (UV) flame detector engineered for precise and dependable flame supervision in commercial and industrial combustion systems. Designed to work in conjunction with Siemens burner controls and flame safeguard relay modules, the QRA2(1) continuously monitors the burner flame and delivers a rapid, reliable signal to the control system — helping ensure safe burner operation and fast lockout response in the event of flame failure.
Key Features
- Ultraviolet (UV) flame detection technology for accurate, interference-resistant flame sensing
- Compatible with Siemens burner management and flame safeguard control systems
- Designed for use on oil, gas, and dual-fuel burner applications
- Compact, robust housing suitable for demanding combustion environments
- Fast response time supports reliable flame supervision and safety lockout
- Direct replacement for Siemens QRA2 series UV detectors
Applications
- Commercial and industrial boilers
- Forced-draft and power burners
- Process heating equipment
- Combustion systems requiring UV-based flame monitoring
Why Choose the Siemens QRA2(1)?
Siemens combustion controls are trusted by HVAC and burner technicians worldwide for their precision engineering and long service life. The QRA2(1) UV detector provides the reliable flame signal integrity that modern burner management systems demand, reducing nuisance shutdowns and supporting safe, efficient combustion operation. Its compatibility with the Siemens burner control family makes it a straightforward, dependable replacement choice for service and maintenance professionals.
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