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Siemens Relay LFL 1.622 110V - Burner Controls

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SiemensBurner Controls

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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 

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Siemens Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens Relay LFL 1.622 110V

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.

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