We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Siemens Relay LFL 1.148 - Burner Controls

Complete Solution

Need installation, maintenance, or a bundled quote?
Our engineers can help with product selection, system design, installation, and ongoing service — all from one partner.

Quick Inquiry

SiemensBurner Controls
Available

Siemens Relay LFL 1.148

SKU 3G-CBM-05824

Brand
Siemens
Item
Relay LFL 1.148
Category
Burner Controls
UNSPSC
40101833 — Boiler or heater igniter

Technical Specifications

Siemens
type
LFL1.148
fuel types
gas, oil, dual-fuel
application
burner control safety relay
burner type
multi-stage or modulating, intermittent operation
power range
medium to large
flame monitoring
UV probe QRA and ionization probe
air damper control
controlled
View Full Spec Sheet
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
SG-based team
Sign in to view pricing
Create a free account to submit your RFQ and download technical documents.
Not sure this is the right part? Get a recommendation.

Solutions Engineering

Need guidance on product selection or system design?
Contact Our Engineering Team
Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens Relay LFL 1.148 is a burner control safety relay for gas, oil, and dual-fuel applications supporting multi-stage or modulating burners. It features UV probe QRA and ionization probe flame monitoring, suitable for medium to large power range equipment requiring intermittent operation control.

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.

You might also need

Gas Trains & Valves Ignition Transformers Burner Controls Spare Parts All Products

More from Siemens

View all Siemens parts
Cell QRB4A-B036B40B
Siemens
Cell QRB4A-B036B40B
Relay LFL 1.335
Siemens
Relay LFL 1.335
Siemens
Siemens
Display POL871.62/STD (replaces POL871.72/STD)
Cell QRB4A-B036A25
Siemens
Cell QRB4A-B036A25
Cell QRB3(1)
Siemens
Cell QRB3(1)
Cell QRB4B-B050B70A
Siemens
Cell QRB4B-B050B70A
Relay LFL 1.635
Siemens
Relay LFL 1.635
Cell QRB1B-D042B20B
Siemens
Cell QRB1B-D042B20B

Need a complete solution?

Product selection, system design, installation, and ongoing maintenance — all from one partner.