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The Siemens photocell model QRA75.A27 is a precise ultraviolet flame sensor designed for industrial and commercial gas and oil burners. It features a spectral sensitivity range of 185 to 270 nanometers, enabling flame detection even under high ambient light conditions. The standard supply voltage is 230 volts AC, and power consumption is under 1 watt, ensuring optimal performance. Response time is less than 1 second, providing fast and safe combustion control. Its durable industrial-grade housing offers resistance against temperature, vibration, and electrical noise.
The QRA75.A27 photocell has an operational lifetime exceeding 10,000 hours and provides stable performance across a temperature range of minus 20 to plus 60 degrees Celsius. The sensor has a diameter of 18 millimeters and an approximate length of 65 millimeters, allowing easy installation in burner housings. The resistant quartz window ensures optimal UV transmission and prevents dust accumulation. This sensor is fully compatible with Siemens burner control units, providing high safety and accurate flame detection in industrial combustion systems.
WEBSITE: Siemens Photocell Model QRA75.A27 Iran
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