Creativity.Integrity.Quality.Guarantee
Our teamwork always harmonious﹑ have our feet planted on solid ground-earnest and down-to-earth
Company
History

MAY 1992 - CNR was found                                                                                               

AUG 1993 - Medium & High Voltage MOVs have obtained UL 1449 safety certification 

APR 1994 - Low Voltage MOVs have obtained UL 1449 safety certification                    

                     Change the English name of the company to CeNtRa Science Corp.           

MAR 1995 MOVs have obtained UL 1414 safety certification                                       

SEP   1996 Passed ISO9002 / IECQ quality system certification                                       

MAR 1998 - MOV Obtained the Safety Approval of VDE                                                 

FEB  2000 -  Production line of front to finish of MOV in Dongguan new factory             

APR  2001 - Shun Quan electrical Magerial (Dongguan) Co., Ltd. was established          

OCT 2001 - The Surge Protective Devices (SPDs ) became into produce formally          

                     The Dongguan factory has obtained ISO 9000 quality system certification 

MAY 2002 - Mass production of ceramic Gas Discharge Tubes(GDTs)                           

JUN 2002 -  MOV Obtained the CQC Quality Approval of China                                     

OCT 2002 - Hosted the annual meeting of China MOV society                                      

                      Obtained IECQ quality system certification                                                   

NOV 2002 - The SPDs for Low voltage distribution system ( A series) obtained safety   

                      certification of China                                                                                     

MAY 2003 - Obtain the patent right of Korean trademark                                              

SEP   2003 - The thermal cut-off protection type MOV has obtained a utility model       

                       patent in China                                                                                               

NOV 2003 - Obtain the patent right of US trademark                                                     

APR  2004 - Hold the first cross strait varistor Technology Seminar                                

NOV 2004 - Obtained ISO14001:2014 quality system certification                                 

                      The SPDs (A series) has obtained a utility model patent in China               

MAR 2005 - Mass production of lead free environmentally friendly MOV                      

OCT  2005 - Successful development of surge protector G Series                                    

NOV 2005 Successful development of surge protector B series                                    

JUN  2006Development of explosion proof MOV completed                                        

OCT  2006 - Development of overheat protection varistor completed                              

APR  2008 - Fire resistant varistor (MOV) development completed                                   

OCT  2008 - Formulation development of Low Clamping Voltage type varistor completed

NOV 2008 - Mass production of MOV for communication lightning protection               

DEC  2008 - The development of halogen-free MOV is completed                                    

FEB   2009 - Environmental protection halogen free MOV trial production success           

MAR 2009 - Dongguan factory pass the OHSAS 18001:2007                                            

APR  2009 - Mass production of high energy SPD Disc                                                      

JUN  2009 TMOV Varistor obtained US patent                                                                 

APR  2012 - Dongguan factory pass the IECQ QC080000 Approval                                   

MAY 2012 - 20th anniversary of the establishment of the company /                               

                      Full introduction of halogen free environmental protection products            

DEC  2013 - Pass the TS 16949 International quality management system certification     

                      of automobile industry                                                                                     

MAR 2015 - New MOV products HE/Hot/C series Published                                             

MAR 2017 - High Surge H Series s electrical specifications improved                               

JUN  2018 - China Great Wall and AOC qualified supplier                                                  

AUG 2020 - Guangzhou Asia Pacific power and Technology Exhibition & introduction   

                      of new GDT / PPTC products                                                                          

 



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