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Siemens Flange and socket QRA 2 - Burner Controls
SiemensBurner Controls

Siemens Flange and socket QRA 2

The Siemens QRA 2 is a UV flame probe for gas and oil burner flame monitoring in industrial heating systems. It delivers reliable flame detection across QRA series variants. Ideal for burner control applications…

SKU 3G-CBM-05857

Brand
Siemens
Item
Flange and socket QRA 2
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
UV flame probe
model
QRA2
series
QRA2, QRA10, QRA5 (D and G series)
application
gas and oil burner flame monitoring
article number
BPZ:QRA53.E27

Technical Documents

(1)
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens QRA 2 is a UV flame probe for gas and oil burner flame monitoring in industrial heating systems. It delivers reliable flame detection across QRA series variants. Ideal for burner control applications requiring robust safety monitoring.

Frequently Asked Questions

What is the Siemens QRA 2 UV flame probe used for?

The Siemens QRA 2 is a UV flame probe used for flame monitoring in gas and oil burners within industrial heating systems. It works with Siemens burner control boxes like LGB, LFL, LFE, LMG, LME, and LMV series to ensure safe flame detection and safety shutdown.

What are the specifications of the Siemens QRA 2?

The Siemens QRA 2 is a UV flame probe from the QRA series, including QRA2, QRA10, QRA5 D and G variants. It is designed for intermittent or permanent flame monitoring of gas and oil burners. The article number is BPZ:QRA53.E27, and it is used with Siemens safety control boxes.

Where to buy the Siemens QRA 2 in Singapore?

You can source the Siemens QRA 2 UV flame probe from 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this burner control component.

How to install the Siemens QRA 2 flame probe?

Installation must be done by qualified specialists. Isolate the system from the main power supply before working on the probe. Ensure correct wiring and avoid exposure to UV from halogen lamps or welding arcs, which can cause false flame signals. Do not use the probe after a drop or impact.

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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