Is the Siemens Relay LFL 1.622 110V available from 3G Electric?

Yes — 3G Electric supplies genuine Siemens products with in-stock availability on common SKUs and worldwide shipping.

How do I get a quote for the Siemens Relay LFL 1.622 110V?

Click "Request a Quote" on this page or add the product to your RFQ cart. Our engineers will respond within 24 hours with pricing, lead times, and technical recommendations.

Does 3G Electric provide technical support for burner controls?

Yes, our team of experienced engineers provides full technical support including product selection, installation guidance, commissioning, and after-sales service for all burner controls we distribute.

SiemensBurner Controls

Siemens Relay LFL 1.622 110V

SKU 3G-CBM-05823

Also listed as: REL 15119 · REL-15119

Brand

Siemens

Item

Relay LFL 1.622 110V

Technical Specifications

Siemens

product model

LFL 1.622 

operation mode

Intermittent (shutdown by regulation min 1x per 24h) 

supply voltage

110 V 

application type

Burner Controls 

air damper control

Controlled air damper command 

burner power rating

Medium to large power 

fuel types supported

Gas, oil, or dual-fuel 

burner control capability

Single or dual tube burners 

flame detection method uv

QRA... UV probe 

probe cable maximum length

Specified in technical characteristics section 

high voltage ignition cable

Must be installed separately, maximum distance from device and other cables 

ionization probe protection

Not protected against accidental contact 

uv probe parallel connection

Up to 2x QRA... UV probes can be connected in parallel 

ignition safety time variants

Series 01 and 02 differ by safety time duration 

dual probe simultaneous operation

Only one probe active except during 2nd safety time (t9) 

flame detection method ionization

Ionization probe 

unlock operation maximum duration

10 s 

unlock button manual force maximum

≤ 10 N 

safety verification stray light response

Safety shutdown within max 40 s 

safety verification obscured flame sensor response

Safety shutdown at end of TSA 

View Full Spec Sheet

Technical Documents

(2)

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

Siemens Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens LFL 1.622 is a burner control relay rated 110 V for medium to large power gas, oil, or dual-fuel burners, including single or dual tube configurations. Operating in intermittent mode with shutdown regulation minimum once per 24 hours, it provides flame detection via QRA UV probe or ionization probe, with support for up to 2 UV probes in parallel. The device controls air damper command, features an unlock operation maximum duration of 10 s, and requires separate installation of the high-voltage ignition cable. 3G Electric sources and supplies this controller for burner management applications across Singapore and Southeast Asia.

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

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.

Browse all Siemens products →Contact our engineers →