Siemens Cell
20 sizes & variants — select below · Model: 20 options
The Siemens Cell QRB1B-D042B20B is a photoresistor-based burner control for oil burner flame monitoring in small power burners, supplied with two-wire thermoplastic cable and bracket mounting (21 mm or 36 mm hole…
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From the manufacturer's datasheet
Siemens- Small photoresistor flame detector for oil burners
- Monitors visible spectrum of oil flames
- Available with or without soft plastic sleeve
- Mounting via flange, collar, or sleeve
- Guide groove and cam ensure correct orientation
- Signal measured via probe current
Showing 20 / 20 variants — scroll the table for more
| Part No (MPN)— | 3G SKU3G-CBM-05785 | ModelQRB1A-A068B70B | |
| Part No (MPN)— | 3G SKU3G-CBM-05786 | ModelQRB1B-D042B20B | |
| Part No (MPN)— | 3G SKU3G-CBM-05787 | ModelQRB1B-A048B70B | |
| Part No (MPN)— | 3G SKU3G-CBM-05788 | ModelQRB1B-C036B40A | |
| Part No (MPN)— | 3G SKU3G-CBM-05789 | ModelQRB1B-A068B70B | |
| Part No (MPN)— | 3G SKU3G-CBM-05790 | ModelQRB1A-A150B70A | |
| Part No (MPN)— | 3G SKU3G-CBM-05791 | ModelQRB3(1) | |
| Part No (MPN)— | 3G SKU3G-CBM-05792 | ModelQRC1A1.101C27 | |
| Part No (MPN)— | 3G SKU3G-CBM-05793 | ModelRAR9 | |
| Part No (MPN)— | 3G SKU3G-CBM-05796 | ModelQRB4A-B036B40B | |
| Part No (MPN)— | 3G SKU3G-CBM-05797 | ModelQRB4B-B036A25 | |
| Part No (MPN)— | 3G SKU3G-CBM-05798 | ModelQRB4B-B036B40B | |
| Part No (MPN)— | 3G SKU3G-CBM-05799 | ModelQRB4B-B050B70 | |
| Part No (MPN)— | 3G SKU3G-CBM-05800 | ModelQRB4B-B050B70A | |
| Part No (MPN)— | 3G SKU3G-CBM-05802 | ModelQRB4B-B025B40B | |
| Part No (MPN)— | 3G SKU3G-CBM-05803 | ModelQRB4B-B036B40 | |
| Part No (MPN)— | 3G SKU3G-CBM-05804 | ModelQRB4A-B036A25 | |
| Part No (MPN)— | 3G SKU3G-CBM-05805 | ModelQRB4A-B050B70A | |
| Part No (MPN)— | 3G SKU3G-CBM-05806 | ModelQRB4A-B070B70B | |
| Part No (MPN)— | 3G SKU3G-CBM-05807 | ModelQRI2B2-B180B |
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Frequently Asked Questions
What is the sensing element of the QRB1...B?
It is a photoresistor (photorésistance) that monitors the visible spectrum of oil flames.
What are the available cable lengths?
Available lengths (with/without sleeve) are 18/20, 28/30, 33/35, 48/50, 58/60, 68/70, 78/80, and 148/150 cm.
How is the flame signal measured?
The flame signal is measured by the probe current (μA) generated by the photoresistor under light incidence.
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