What applications is it suitable for?

Widely used for industrial burners of boiler, furnace, oven, heating thermal equipment, for maintenance and replacement.

Siemens Lfs1.21A2 Flame Controller Burner Flame Safety Amplifier

Name: Siemens Lfs1.21A2 Flame Controller Burner Flame Safety Amplifier
Brand: Shenzhen Zhongliweiye Electromechanical Equipment Co., Ltd.
SKU: 2183960682

Guangdong, ChinaShenzhen Zhongliweiye Electromechanical Equipment Co., Ltd.

US$350.00

1 Piece

Product profile

Customization

Available

Task

Monitoring

Signal

Flame Signal

Model NO.

LFS1.21A2 1700

Function

Protection, Monitoring

Certification

Condition

New

Customized

Non-Customized

Product Model

Lfs1.21A2

Working Voltage

230V AC 50/60Hz

Application

Industrial Gas / Oil Burner

Operating Temperature

-20℃ ~ +60℃

Transport Package

Individual Carton Box

Specification

88×65×57mm

Trademark

SIEMENS

Origin

Germany

HS Code

8416900000

Key features

Reliable flame signal monitoring for industrial gas and oil burners, realizes real-time flame safeguard protection.

Compatible with multiple flame probes, works with UV detector QRA2/QRA4, photosensitive probe RAR9 and ionisation probe.

High anti-interference performance, stable operation under complex industrial site conditions.

Fast response for flame loss detection, cuts off fuel supply in time to avoid safety hazards.

230V AC power supply, compact module design, easy installation and commissioning.

Widely used for combustion system of boiler, furnace, oven and other thermal equipment.

Company profile

Importers and ExportersExhibition Experience

Shenzhen Zhongliweiye Electromechanical Equipment Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤1.07h

AI-Powered supplier vetting

SummaryShenzhen Zhongliweiye Electromechanical Equipment Co., Ltd. is a China-based manufacturer established in 2014 with 24 employees. It offers gas burners, burner accessories, boiler-related products, and related equipment. The supplier demonstrates broad customization and ODM capabilities, has two R&D engineers, provides technical and after-sales support, and maintains R&D design and validation documentation. It has OEM experience with recognized brands and has participated in the SFCHINA trade show. However, no certifications, SDK, R&D patents, overseas warehouses, overseas showrooms, overseas agents, or written supplier corrective-action procedures are documented. Financial records are indicated for 2022–2024, but their adequacy cannot be assessed from the provided information.

Supplier typeThe supplier is identified as a manufacturer and limited company located in Shenzhen, China, with products including gas burners, burner accessories, boiler accessories, burner controllers, and solenoid valves. This directly supports classification as a manufacturing supplier rather than a trading-only entity.

After-Sales capabilityThe supplier’s technical engineers are responsible for technical support during production and after-sales service, and it has a clear customer-complaint procedure with follow-up records. However, it reports no overseas warehouse, showroom, agent, or branch, indicating that overseas service infrastructure is not documented and is explicitly absent.

R&D capabilityThe supplier reports new products within the past year, two R&D engineers, R&D audit documentation, AutoCAD and 3D design capabilities, private mold capability, and ODM services. These are positive indicators of active product development, although it has no R&D patents and no available SDK.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its two R&D engineers, private mold capability, AutoCAD, 3D design services, and ODM offering further support practical customization and design-to-production work.

Client casesThe supplier reports OEM service for recognized brands and participation in the SFCHINA offline trade show. These are direct indicators of market-facing experience, but no customer names, project descriptions, order volumes, or independently verifiable case details are provided.

Product Q&A

Q:What is the function of LFS1.21A2?

It is a flame safety amplifier for industrial gas and oil burners. It monitors flame signal in real-time and triggers safety cut-off once flame loss occurs, to avoid combustion risks.

Q:Which flame probes can this module work with?

Compatible with UV flame detector, ionization probe and photosensitive probe RAR9. Base AGK11.7 is required for installation, and the base is not included in standard package.

Q:What is the working power supply?

Working voltage is 230V AC, 50-60Hz.

Q:Does this item include AGK11.7 plug-in base?

No. AGK11.7 mounting base is sold separately. You need to order it additionally if you do not have existing base.

Q:Is this original new Siemens product?

Yes, it is 100% original brand-new.