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3G Electric
Siemens Relay LFL 1.333 - Burner Controls
SiemensBurner Controls

Siemens Relay LFL 1.333

Siemens Relay LFL 1.333 is a safety control box for medium to high power gas, oil, and dual fuel burners, featuring UV probe QRA or ionization flame monitoring. Ideal for industrial burner control applications…

SKU 3G-CBM-05819

Brand
Siemens
Item
Relay LFL 1.333
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
safety control box
series
LFL1.333
application
medium to high power gas/oil/dual fuel burners
manufacturer
Siemens
flame monitoring
UV probe QRA or ionization
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens Relay LFL 1.333 is a safety control box for medium to high power gas, oil, and dual fuel burners, featuring UV probe QRA or ionization flame monitoring. Ideal for industrial burner control applications requiring reliable flame detection.

Frequently Asked Questions

What is the Siemens LFL1.333 relay used for?

The Siemens LFL1.333 is a safety control box for medium to high power gas, oil, and dual fuel burners. It provides flame monitoring using a UV probe QRA or ionization sensor, making it suitable for industrial burner control applications requiring reliable flame detection and intermittent operation.

What are the specifications of the Siemens LFL1.333?

The Siemens LFL1.333 is a safety control box from the LFL1.333 series. It is designed for medium to high power gas, oil, or dual fuel burners with intermittent operation. It supports flame monitoring via UV probe QRA or ionization and includes controlled air damper command.

Where to buy the Siemens LFL1.333 in Singapore?

You can source the Siemens LFL1.333 relay from 3G Electric in Singapore. We supply industrial burner controls and handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this safety control box.

How to install the Siemens LFL1.333 safety control box?

Installation must be performed by qualified personnel only. Disconnect power before working on terminals, ensure proper wiring, and do not open the device. The reset button should be pressed manually with force ≤10 N and not held for more than 10 seconds to avoid damage.

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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