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3G Electric
Siemens Relay LFL 1.635 - Burner Controls
SiemensBurner Controls

Siemens Relay LFL 1.635

Siemens LFL1.635 is a burner control safety relay for gas, oil, or dual-fuel burners with UV probe or ionization flame monitoring. It supports modulating and multi-stage burner operation with integrated air damper…

SKU 3G-CBM-05825

Brand
Siemens
Item
Relay LFL 1.635
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
Burner control safety relay
model
LFL1.635
features
Air damper control, modulating/multi-stage burner support
application
Gas, oil, or dual-fuel burners
flame monitoring
UV probe QRA or ionization
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens LFL1.635 is a burner control safety relay for gas, oil, or dual-fuel burners with UV probe or ionization flame monitoring. It supports modulating and multi-stage burner operation with integrated air damper control, serving refinery, chemical, and power generation heating systems.

Frequently Asked Questions

What is the Siemens LFL1.635 burner control relay used for?

The Siemens LFL1.635 is a burner control safety relay for gas, oil, or dual-fuel burners in medium to large heating systems. It supports modulating and multi-stage burner operation with integrated air damper control, commonly used in refinery, chemical, and power generation applications.

What are the specifications of the Siemens LFL1.635?

The Siemens LFL1.635 is a burner control safety relay with flame monitoring via UV probe QRA or ionization. It features air damper control and supports modulating or multi-stage burner operation for intermittent duty (at least one shutdown every 24 hours). It is designed for medium to large power burners.

Where to buy the Siemens LFL1.635 in Singapore?

You can source the Siemens LFL1.635 burner control relay from 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this industrial safety relay.

How to install the Siemens LFL1.635 burner control?

Installation must be performed by qualified personnel only. Disconnect power before working on terminals, verify wiring compliance, and ensure protection against accidental contact. Do not open the device or use tools on the reset button (max 10 N force). Follow local safety regulations.

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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