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Siemens Cell QRB4B-B036B40B - Burner Controls
SiemensBurner Controls

Siemens Cell QRB4B-B036B40B

Siemens QRB4B-B036B40B flame detector monitors oil burner ignition with yellow flame probe and two-wire thermoplastic cable. Features 36 mm hole spacing bracket and switchable sensitivity for reliable combustion…

SKU 3G-CBM-05798

Brand
Siemens
Item
Cell QRB4B-B036B40B
Category
Burner Controls
UNSPSC
40101833 — Boiler or heater igniter
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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

Technical Specifications

Siemens
type
QRB4B flame detector (yellow flame probe)
Model
QRB4B-B036B40B
cable
two-wire thermoplastic
collar
AGK43 plastic
bracket
AGK42 with 36 mm hole spacing
application
oil burner flame monitoring
configuration
compact, switchable sensitivity

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens QRB4B-B036B40B flame detector monitors oil burner ignition with yellow flame probe and two-wire thermoplastic cable. Features 36 mm hole spacing bracket and switchable sensitivity for reliable combustion control in compact burner applications.

Frequently Asked Questions

What is the Siemens QRB4B-B036B40B flame detector used for?

The Siemens QRB4B-B036B40B flame detector monitors oil burner ignition by sensing the visible spectrum of yellow flames. It is designed for use with Siemens burner safety controls such as LME7, LME8, LMO, LMV2, and LMV3 in intermittent operation. Typical applications include industrial and commercial oil-fired burners requiring reliable flame supervision.

What are the specifications of the Siemens QRB4B-B036B40B?

The Siemens QRB4B-B036B40B is a yellow flame probe with a two-wire thermoplastic cable. It includes an AGK43 plastic collar and an AGK42 bracket with 36 mm hole spacing. The detector features switchable sensitivity and is designed for oil burner flame monitoring. Its maximum spectral sensitivity is approximately 540 nm, optimized for yellow flame radiation.

Where to buy the Siemens QRB4B-B036B40B in Singapore?

3G Electric supplies the Siemens QRB4B-B036B40B flame detector to customers in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this Siemens burner control component. We provide technical support for integration with LME7, LMO, and other Siemens safety controls.

How to install the Siemens QRB4B-B036B40B flame detector?

Installation must be performed by qualified specialists. The QRB4B-B036B40B is designed for frontal or lateral (90°) sighting. Mount the detector using the AGK42 bracket with 36 mm hole spacing. Do not open the probe or modify its cable. Ensure the burner safety control is de-energized before connecting the two-wire thermoplastic cable.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks
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Siemens 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.

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