Siemens QRB4B Photocell is an industrial spare component used for Siemens LMV / LME Modulating Burner Supervision. STARNEX Industrial Spares supplies and sources Siemens spare parts for maintenance engineers, plant operators, and procurement teams in Kenya and East Africa. Before ordering, verify the manufacturer part number (MPN), voltage/pressure specifications, and equipment compatibility.
Siemens QRB4B Photocell
Siemens QRB4B Photocell is an industrial spare component used for Siemens LMV / LME Modulating Burner Supervision. STARNEX Industrial Spares supplies and sources Siemens spare parts for maintenance engineers, plant operators, and procurement teams in Kenya and East Africa. Before ordering, verify the manufacturer part number (MPN), voltage/pressure specifications, and equipment compatibility.
Functional engineering application
The Siemens QRB4B Photocell (MPN: QRB4B-FLAME-PHOTO) is built for continuous-duty industrial piping, holding pressure, temperature, and cycling loads in factory installations across Kenya and East Africa.
Quotation & fulfilment
Parametric technical attributes
| Siemens QRB4B-FLAME-PHOTO | |
| IDENTIFICATION | |
| Component Type | Siemens QRB4B Photocell |
| Manufacturer / Brand | Siemens |
| Part Number (MPN) | QRB4B-FLAME-PHOTO |
| Stock Keeping Unit (SKU) | STX-PCL-QRB4B-050 |
| TECHNICAL PARAMETERS | |
| Brand & Manufacturer | Siemens Building Technologies (Germany) |
| Model Code | QRB4B Compact Flame Detector |
| Sensor Technology | Photoresistive (Enhanced CdS / Semi-Conductor) |
| Spectral Range | 380 nm - 720 nm (Yellow & Blue Flame Spectrum) |
| Compatible Control Boxes | Siemens LMV2, LMV3, LME7, LME21, LMO14, LMO24 |
| Response Time | < 0.8 Seconds (Ultra Fast) |
| Cable Length | 500 mm Heat-Resistant Shielded Lead |
| Protection Rating | IP40 / NEMA 1 |
| Weight | 0.03 kg |
| Country of Manufacture | Germany |
| PERFORMANCE & RATINGS | |
| Operating Voltage | 230V AC / 50Hz (via Digital Control Box) |
| Operating Temperature | -20°C to +60°C (-4°F to +140°F) |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | In Stock — Enterprise Rd, Nairobi |
| KRA Tax Status | Official KRA E-TIMS Tax Invoice Available |
System fitment & verified replacements
Verified interchangeable models
Commonly installed on equipment from
Common questions on this part
QRB4B has a wider spectral range (380-720 nm) capable of sensing both yellow oil flames and blue low-NOx flames, and features an ultra-fast < 0.8s response time for LMV digital managers.
Compatible with Siemens LMV2, LMV3, LME7, LME21, LMO14, and LMO24 digital burner control systems.
Yes, its enhanced semi-conductor element senses the blue spectrum of low-NOx oil and gas burners.
It has an ultra-fast response time of less than 0.8 seconds.
It clips directly into a blast tube mounting bracket aimed at the burner flame root.
Manufactured by Siemens Building Technologies in Germany.
Yes, STARNEX stocks genuine Siemens QRB4B photocells at our Nairobi branch.
It comes with a 500 mm heat-resistant shielded lead cable.
Operates from -20°C to +60°C (-4°F to +140°F).
Wipe the optical tip gently with a clean dry cotton swab or microfiber cloth.
