Custom Made Transformer Manufacturer


Suenn Liang Electric is established in 1986, professional in custome made transformers of auto voltage regulator, single and three phase reactor, three phase power transformer, auto transformer, single phase power/auto transformer, single phase AC to DC dry type transformer and custom power transformers, etc. We acquired EU, UL, ISO9001, ISO9002, ISO14001 and CB inspection certification, and global certification.

The headquarters is located in Taichung Taiwan, and the custom transformer manufacturer is based in Taiwan and China. We also cooperated with Japanese company in technology, prioritized in research & development and acquired latest equipment to provide customer from all over the world a promising product.




1999 Acquired d U.S. UL certification
1999 Acquired certification of EU Norway Nemko
2000 Acquired year 1994 ISO 9002 certification
2000 Acquired CB inspection certification
2002 Acquired year 2000 ISO 9001 certification
2004 Acquired U.S. and Canada UL certification
2009 Acquired EMC 2004/108/EC version of CE certification from TUV
2009 Acquired LVD 2006/95/EC version of CE certification for copper from EURO CERT
2010 Acquired LVD 2006/95/EC version of CE certification for Aluminum from EURO CERT
2010 Acquired year 2008 ISO 9001 certification
2010 Acquired year 2004 ISO 14001 certification
2011 Rewarded Golden Hand Award for Outstanding SMEs (Recognition of its business excellence in management, innovation, reputation for quality and good will
2012 China plant acquired year 2008 ISO 9001 certification



Safety Inspection Low Voltage Directive 2006/95/EC
The purpose of LVD is to make sure the low voltage equipment is safe while operating, low voltage equipment is any electronic equipment in between AC 50 to 1000 volt, DC 75 to 1500 volt.


Functional Inspection EMC Directive 2004/108/EC
EMC = EMI + EMS, EMC is used by manufacturer to suppress the equipment electromagnetism and prevent equipment malfunctioning from interference.


Toxic Inspection ROHS 2002/95/EC
It is to make sure no toxic material is used during production; dispose and recycle waste material properly for environmental concern. According to the law, the material for manufacturing machinery or electronic product should not contain lead, mercury, cadmium, hexavalent chromium, PBDE, PBB since 2006 July 1st.