SETsafe | SETfuse
SETsafe | SETfuse
SETsafe | SETfuse
SETsafe | SETfuse
SETsafe | SETfuse
About SETsafe | SETfuse

Establishment, Markets, Customers, Certifications

Xiamen SET Electronics Co., Ltd. (SETsafe | SETfuse) was established in 2000 in Xiamen, China. The products are sold to more than 40 countries and regions and widely used in New Energy, Energy Storage, Communications, Lightning Protection, Power Supplies, Lighting, Home Appliances, Mobile Equipment, Medical and other Electrical Equipment markets. SETsafe | SETfuse have deep cooperation with some of Fortune 500 companies, with 23-year history of innovation and obtained multiple patents, the product obtained VDE, TUV, PSE, KC, UL, cUL, cULus, CCC, CQC certifications, comply with RoHS and REACH.


Management System, Standard  Learn more

SETsafe | SETfuse obtained Quality (IATF 16949, ISO 9001), Environment (ISO 14001), Occupational Health and Safety (ISO 45001) , Energy Management Systems(ISO50001) management system certification, participated in the formulation and revision of a number of national and international standards for circuit protection components.


Digital Management

SETsafe | SETfuse adopts internationally renowned industrial-grade software to manage enterprises, and conducts digital management from product design, research and development, manufacturing, shipment, and customer needs. Daily work takes OA (Office Automation) as the core to make data with major business systems Docking can achieve paperless office. SETsafe | SETfuse is also working hard to further promote digital transformation, promote the integration and innovation of digital technology and industrial manufacturing, green low-carbon, new energy and other technologies, consolidate intelligent manufacturing, and help high-quality development.


Laboratory  Learn more

SETsafe | SETfuse has obtained the American UL Approved Witness Testing Laboratory (WTDP) (UL 1449, UL 1434, UL 60691), and the German TUV Rheinland authorized laboratory qualification (IEC/EN 60691, IEC/EN 61051-1, IEC/EN 61051-2, IEC/EN 62368-1, IEC/EN 61643-11, IEC/EN 61643-21, IEC/EN 61643-31, IEC/EN 62319-1, IEC/EN 62319-1-1 , IEC/EN 60539-1). More than 1,000 professional testing and experimental equipment, many of which are the best brands in the industry.


Product Quality Assurance

SETsafe | SETfuse adopts an international management system and standard management company to ensure that SETsafe | SETfuse products can serve global customers. SETsafe | SETfuse has passed the quality (IATF 16949, ISO 9001, German TUV certification, certification). And there are annual and quarterly supervision and audit. SETsafe | SETfuse product quality has strict quality standards from Product Design, Raw Material Selection, Supplier Selection, Audit, Incoming Material Inspection(IQC), Online Inspection, Function Test(FQC, QCFC), and Shipment Inspection(OQC). Mainly included nodes and management:


Product Design

Breakthrough innovative design, technology, automated production, strict quality management, make the product quality continue to be high and reliable, and lead the industry.


Raw-materials Supplier

Select critical raw materials: Must be from a manufacturer with quality management system (ISO9001, IATF16949) certification.

Annual or Quarterly Audits.


IQC (Incoming Quality Control)

AQL(MIL-STD-105E), Dimensions, Function, Visual Inspection, RoHS & REACH Test.



Formulate corresponding incoming inspection specifications (01-QA-06-xxx) for each key material according to design data such as material technical indicators.



AQL (MIL-STD-105E, GB/T2828.1-2012) sampling is used to inspect size, function, appearance, RoHS, REACH test, and supplier inspection report confirmation.


Testing Equipment and Tools

Projector, Tool Microscope, Salt Spray Tester, Universal Material Testing Machine, Spectrum Analyzer, Function temperature tester, Tension meter, DSC tester etc.


Manufacturing Process  

Function temperature test and Online Inspection and Testing (Function 100% Automatic Testing).



Process Flow Chart.

Failure Mode and Effects Analysis (FMEA).

Quality Control Flow Chart (QCFC).

Standard Inspection Procedure (SIP).

Work Instruction (WI).


Online Testing and Inspection

Resistance test system (100% Automatic Testing).

100% Visual inspection, Fuse aid detection, Soldering appearance CCD detection etc.


IPQC (In Process Quality Control)

AQL(MIL-STD-105E), Dimensions Inspection, Function Test, Visual Inspection.


FQC (Final Quality Control)

AQL(MIL-STD-105E), Dimensions Inspection, Function Test, Visual Inspection, RoHS & REACH Test.


Reliability Test

Each product has a reliability test test specification (01-TE-01-XXX) document, and the reliability test of the product is carried out according to the document, such as vibration, drop, high and low temperature cycle and other experiments (the reliability items of each product are different, It needs to be executed according to the corresponding file).


OQC (Outgoing Quality Control)

Use AQL (MIL-STD-105E, GB/T2828.1-2012) sampling to inspect packaging, labels, quantities, product traceability numbers and other items, and 100% confirmation of customer special requirements.


Breakthrough innovative design, technology, automated production, and strict quality management (from product design verification, supplier selection, incoming material inspection, process control and inspection, finished product inspection, and shipment inspection, there are documents and rules), so that the product quality is sustainable and reliable, and leads the industry.



RoHS & REACH Compliant.

All SETsafe | SETfuse products comply with RoHS and REACH regulations(Please refer to the datasheet of each product). To protect the earth from being polluted by products and production, SETsafe | SETfuse has invested a huge cost, and we believe it is worthy.


SETsafe | SETfuse Main Products Category  Learn more

Over Temperature Protection, Over Voltage Protection, Over Current Protection, Active Protection Components.


Over Temperature Protection  Learn more

Thermal-Link (ATCO)-Alloy TypeThermal-Link (DC-ATCO)-DC Alloy TypeThermal-Link (OTCO)-Organic Type.


Over Voltage Protection  Learn more

Transient Voltage Suppression Diodes (TVS Diodes)TVS Diodes-Standard TypeTVS Diodes-Automotive GradeESD TVS Diode Arrays (ESD TVS)Thyristor Surge Suppressors (TSS)Gas Discharge Tube (GDT)Metal Oxide Varistor & MOV DiskMetal Oxide Varistor & MOV Disk-Standard TypeMetal Oxide Varistor-High Surge TypeMOV Disk-Lightning Protection Type For T1Thermal Fuse & MOV (TFMOV)Thermal Fuse Varistor (TFV)Thermal Fuse & MOV (TFMOV)Thermally Protected Varistors (TFMOV)Surge Protective Devices Module (SPD-M)Surge Protective Device (SPD)SPD (Low-voltage Power Systems)SPD (PV System)SPD (Outdoor Lighting)SPD (Signaling Networks)


Over Current Protection  Learn more

Miniature FusesCartridge Fuse-links (CFL)Sub-miniature Fuse-links (SFL)Surface Mount Fuse-links (SMFL)Fusible Wirewound Resistor (RXF)Thermal-Link & Fusing Resistor (TRXF)Thermally Protected Resistor (TPR)Low Voltage Fuses (LV Fuses).


Active Protection  Learn more

idea Thermal-Link (iTCO),Heat CutOff (HCO),Thermal-Link & Fusing Resistor (TRXF)-Active Protection,Thermally Protected Resistor (TPR)-Active Protection.


Product Application Markets

New Energy, Energy Storage, Communications, Lightning Protection, Power Supplies, Lighting, Home Appliances, Mobile Equipment, Medical and other Electrical Equipment markets.


Corporate Responsibility

SETsafe | SETfuse sells products to the global market, which means more social responsibility. We offer and guarantee safe workplace and environment, to comply with laws and regulations.


Customer Relations

SETsafe | SETfuse helps customers improve the safety index of their products, plays a pivotal role in the field of circuit protection, which is committed to creating and maintaining excellent customer relationships. From product design, manufacturing, sales to professional customer service support, we provide one-stop service.


Welcome to visit:


Company Vedio


Xiamen Headquarters

Office, Production Building


Office, Production Building

Office, Production Building






Beautiful City Xiamen

Beautiful City Xiamen

10+ Years Employee

Our History



Award by Customer
In February 2023: Award presented by customer: Innovation Respect Award

In March 2023: Award presented by customer: Excellent Quality Award

In March 2023: Award presented by customer: Green Supplier Award


Award by Industry
In April 2023: Electric vehicle industry: Excellent component supplier in the global automotive thermal management industry

In May 2023: China International Energy Storage Conference: 2023 Best Innovative Enterprise Award in China Energy Storage Industry


Business Cooperation
In March 2022, SETsafe | SETfuse reached strategic cooperation with Sungrow (stock code: 300274), a leading enterprise in the photovoltaic and energy storage industries, and completed the signing of a strategic investment and cooperation agreement. The cooperation with Sungrow aims to improve the overall level of our company through industrial chain cooperation with benchmarking enterprises and linkage between upstream and downstream, so as to provide high-standard, high-quality circuit protection components and safe circuit protection solutions for the whole world.


New Products
Launch several new products for multiple industries

Energy storage industry: Over-current protection products, over-voltage protection products

Electric vehicle industry: Over-current protection products, over-temperature protection products



Fujian Provincial-level Enterprise Technology Center (2021-2022 year)

The Fourth Batch of National-level Specialized and New Small Giant Enterprises (2022-2025 year)

Xiamen Specialized and New Small and Medium-sized Enterprises (2022-2024 year)


New Products



Witnessed Test Data Program (WTDP)

SETsafe | SETfuse Obtained Permanent Authorization UL 60691 & UL 1449 & UL1434

UL 60691,CSA C22.2 NO.60691:19.

UL 1449, EDITION 5, ISSUE DATE 01/08/2021 (Surge Protective Devices).


CSA Component Acceptance Service, T.I.L, Class No.9073-31, ISSUE DATE 07/09/1991.

CSA C22.2 No.269.5, EDITION 2, ISSUE, DATE 09/2017 (Surge Protective Devices – Type 5 - Components).

CSA C22.2 No.269.4, EDITION 2, ISSUE, DATE 03/2017 (Surge Protective Devices – Type 4 - Component Assemblies).


TÜV Rheinland Authorized Testing Lab

IEC 60691:2015+A1

EN 60691:2016+A1

IEC 61051-1:2018

EN IEC 61051-1:2018

IEC 61051-2:1991+A1

IEC 61051-2-2:1991

IEC 62368-1:2020 Annex G.8

EN IEC 62368-1:2020 Annex G.8

EN 50539-11:2013+A1

IEC 61643-11:2011

EN 61643-11:2012+A11

IEC 61643-21:2012

EN 61643-21:2001+A1+A2

IEC 61643-31:2018

EN 61643-31:2018


Obtained national(China) high-tech enterprise certificate.



PLM system online


Management System

IATF 16949 Automotive Quality Management System Approved.


New Products (Patent)

Thermally Protected Transient Voltage Suppression Diodes (TTVS)



The leading enterprise of Fujian Science and Technology Giant.

Key tax-paying enterprises in 2017.

The hidden champion company made in China.

Hidden Champion

Hidden Champion Made in China


Obtained national(China) high-tech enterprise certificate.


Management System

GB/T 29490 Intellectual Property System Approved.


New Products (Patent)

New Automatic Production Line

iTCO Applied in New Energy


Management System

SAP - ERPOACRMHR system online


Obtained national(China) high-tech enterprise certificate.


New Products (Patent)


New Products (Patent)

Thermal-Link (DC-ATCO)



New Products (Patent)

Thermal-Link & Fusing Resistor (TRXF)


Management System

ISO14001 Environmental Management System Approved.

OHSAS18001 Occupational Health and Safety Management System Approved.


Obtained national(China) high-tech enterprise certificate.



First-class enterprise of export classification management.

Xiamen Independent Innovation Pilot Enterprise.


New Products (Patent)

Surge Protective Devices Module (SPD-M)




New Factory

Moved to new factory (independent property right)



Xiamen Growth Small and Medium-sized Enterprises in 2009.

The largest taxpayer of Xiamen Government in 2008.

Recognition of Xiamen Famous Trademark.


New Products (Patent)

idea Thermal-Link (iTCO)


Management System

ISO9001 Quality Management System Approved.



SAP-ERP system online


New Products (Patent)

Thermal Fuse & MOV (TFMOV)


New Products (Patent)


New Products (Patent)



UL60691 WTDP


New Products (Patent)

Thermal-Link (ATCO)


New Products (Patent)

Thermal-Link (ATCO)