Commitment to International Quality and Compliance #
KUOYUH W.L. Enterprise Co., Ltd. has consistently prioritized quality, safety, and global compliance in the manufacturing of overload protection devices and circuit breakers. Our dedication is reflected in the numerous certifications and standards we have achieved over the years, ensuring our products meet the stringent requirements of markets worldwide.
Our Key Certifications #
ISO (International Organization for Standardization)
UL (Underwriter Laboratories)
CSA : Canadian Standards Association
TUV : TÜV SÜD
CCC : China Compulsory Certification
VDE : (Verband Deutscher Elektrotechniker) EN60934 standard
IEC (International Electrotechnical Commission)
RoHS (Restriction of Hazardous Substances)
SAE : Society of Automotive Engineers
ABYC : American Boat and Yacht Council
SAA : Standards Australia International Limited
KC : Korea Certification
Certification Highlights #
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ISO 9001:2015
Since 2003, KUOYUH has implemented the ISO quality management system, standardizing production processes to enhance product consistency and deliver stable, cost-effective solutions to customers. Learn more -
UL (Underwriter Laboratories)
Adhering to UL1077, UL1500, and UL61058 standards since 1997, KUOYUH ensures reliable overload protection devices. Investments in advanced testing equipment and partnerships in the US support our commitment to quality. Learn more -
CSA (Canadian Standards Association)
Certified since 1998 under CSA C22.2–NO.235-04, KUOYUH continues to expand globally, offering a diverse range of multi-current protection devices. Learn more -
TUV (TÜV SÜD)
Achieved in 2002, TUV certification (EN60934) has enabled KUOYUH to serve the European market, with products used by brands like Dyson and Philips and agents across the UK, Italy, Poland, and Lithuania. Learn more -
CCC (China Compulsory Certification)
Entering the Chinese market in 2003, KUOYUH obtained CCC certification in 2004, supporting customers across Greater China with a production base in Dongguan and agents in major cities. Learn more -
VDE (Verband Deutscher Elektrotechniker) & IEC (International Electrotechnical Commission)
Since 2004, KUOYUH has followed IEC60934 standards for circuit breakers, producing overload protectors to the highest global standards. VDE | IEC -
RoHS (Restriction of Hazardous Substances)
In 2006, KUOYUH adopted environmentally friendly material management, complying with EU RoHS 2.0 (EU) 2015/863 directives. Learn more -
SAE (Society of Automotive Engineers)
Since 2010, KUOYUH has produced overload protection units for DC equipment, following SAE J553, J1171, and J1625 standards for automotive and marine applications. Learn more -
ABYC (American Boat and Yacht Council)
High-amp waterproof overload protectors for marine use have been developed since 2014, with mass production starting in 2016, adhering to ABYC E-11 standards. Learn more -
SAA (Standards Australia International Limited)
SAA certification, obtained in 2012, supports KUOYUH’s expansion in Australia, following IEC60934 standards. Learn more -
KC (Korea Certification)
Also in 2012, KUOYUH achieved KC certification, enabling growth in the Korean market with products meeting IEC60934 standards. Learn more
Our Global Presence #
KUOYUH’s certifications reflect our ongoing commitment to quality, safety, and environmental responsibility. With production bases and agents across Asia, Europe, North America, and Australia, we continue to serve a diverse, global clientele with reliable overload protection solutions.
For more information about our certifications or to view specific certificates, please visit the respective links above.