Siemens Cell QRB4B-B050B70
Siemens QRB4B-B050B70 is a yellow flame sensor for oil burner flame detection featuring a two-wire thermoplastic cable and 36 mm hole spacing. Ideal for burner control applications requiring reliable flame…
SKU 3G-CBM-05799
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
Siemens QRB4B-B050B70 is a yellow flame sensor for oil burner flame detection featuring a two-wire thermoplastic cable and 36 mm hole spacing. Ideal for burner control applications requiring reliable flame supervision in industrial heating systems.
Frequently Asked Questions
What is the Siemens QRB4B-B050B70 used for?
The Siemens QRB4B-B050B70 is a yellow flame sensor used for oil burner flame detection in industrial heating systems. It monitors the visible spectrum of oil flames and works with Siemens safety controls like LME7, LME8, LMO, LMV2, and LMV3 for reliable flame supervision.
What are the specifications of the Siemens QRB4B-B050B70?
The Siemens QRB4B-B050B70 is a yellow flame sensor with a two-wire thermoplastic cable and 36 mm hole spacing. It includes a soft plastic sleeve and is designed for oil burner flame detection. Its maximum spectral sensitivity is approximately 540 nm, optimized for yellow oil flames.
Where to buy the Siemens QRB4B-B050B70 in Singapore?
You can source the Siemens QRB4B-B050B70 from 3G Electric in Singapore. We supply industrial burner controls and handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Siemens flame sensor.
How to install the Siemens QRB4B-B050B70?
Installation must be performed by qualified specialists. The QRB4B-B050B70 is designed for front or side (90°) viewing. Ensure the sensor is protected from stray light and disconnect all power before wiring. Do not open the sensor or modify its cable. Follow Siemens safety guidelines.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens burner controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
