1Proposal for amendment to the legal inspection regulation for Low-voltage 
three-phase induction motors 
 
By the Bureau of Standards, Metrology and Inspec tion (BSMI), Ministry of Economic Affairs MOEA 
 
Introduction: 
The Low-voltage three-phase induction motors have been subject to mandatory inspection under the 
Commodity Inspection Act by the Bureau of Standards Metrology and Inspection (BSMI) since 20 May 1974. 
The BSMI will adopt the revised standard CN S 14400 “Low-voltage three-phase squirrel-cage 
high-efficiency induction motors (For general pur pose)” (promulgated on 26 March 2012) and CNS 1056 
“Low-voltage three-phase induction motors” (promulgated  on 10 August 2011) as new testing and inspection 
standards, instead of the current CNS 14400 (p romulgated on 9 September 2003) and CNS 1056 
(promulgated on 31 August 1999). 
 
Proposed date of implementation:  
1 January 2015  
 
Products (HS/CCCN codes) covered and their applicable inspection standards: 
Description of Goods  Inspection Standards C.C.C. Code (the first 
6 digits are the same 
as HS Code) 
Low-voltage three-phase induction motors. 
(inspection scope: only those rated output below 
74.6kW (100HP) without other additional device 
and exclude those used in household appliances).CNS 1056 (2011), 
CNS 14400 (2012) 8501.51.90.00.7 
8501.52.90.00.6 
Remarksj 
1. The inspection scope of CNS 1056 : 
This standard is applicable to the maximum conti nuous rating; rated frequenc y of 60Hz, 600V and lower 
rated voltage, drip proof type and totally enclosed ty pe (including totally enclosed fan cooled type but 
excluding totally enclosed internal c ooled type), Class A insulation, ambient temperature of the air at the 
operating site does not exceed 40 Ċof the low voltage three-phase squirrel-cage induction motors. 
2. The inspection scope of CNS 14400 
  This standard applies to low-voltage three-ph ase squirrel-cage high –efficiency induction motors which 
have continuous rating, rated freque ncy 60Hz, rated voltage 600V and be low, and suitable for application 
at ambient temp 40 Ċand below. 
  This standard does not include following motors: 
(a) Submersible electric motors, which are designed to submerse and run under liquids. 
(b) Electric motors integrated into a machine(driv en equipment) that can not be separated from the 
machine  
(c) Multi-speed electric motors (for example, pole-cha nged motors, elevator usage motors, etc), but does 
not include eddy current electric motors. 
(d) Electric motor regulated by other national standa rds, or specifically designed and built for special 
usage and approved by government authorities. (F or example, high temperature smoke extraction 
motors…etc.). 
3. The inspection standards of CNS 14400 and CN S 1056 can be accessible at CNS online service website: 
www.cnsonline.com.tw . You can preview the content of these sta ndards for free. If you need to download 
and print, please contact our service counter of Data center at BSMI.  
  Tel: +886-2-23414772 or +886-2-23431994 
Fax: +886-2-8192-6746 
  E-mail: cnsonline@hibox.hinet.net  
 
 
 
 
  2The conformity assessment procedures fo r the inspection schemes are as follows: 
 
Registration of Product Certification (RPC) Scheme (Module II + III ) 
Under this procedure, domestic manuf acturers or importers must have their products type-tested in 
advance (Module II) before applying for registration of their products. Manufacturers or importers will also 
be required to ensure by declarati on that all products made at their ma nufacturing facilities or imported are in 
conformity with the prototypes submitted for type test at Module II stage, and the declaration procedure is 
called Module III (conformity-to-type declaration). The c onformity-to-type declaration shall be drawn up by 
the manufacturer or the authorized local representativ e, declaring that the products mass-produced will 
comply with the prototype as described in the type-test report. 
Products will be allowed to use the Commodity Inspec tion Mark with the letter ‘R’ and the identification 
number given by the BSMI, after they are certified and registered with the BSMI. These products can then 
pass through customs directly without any further in spection if not be sampled by RPC border check 
procedure. The application fee and annual fee for RPC are both NT$5,000(about US$170) for each 
certification, and the RPC certifications are valid for three years. If there are any serial products, the extra 
NT$3,000(about US$102) of application fee is need ed for every application in each certification. 
 Locations to apply for Type Testing: 
The BSMI or BSMI-designated testing laboratories.  
Locations to apply for Registration of Product Certification: 
The BSMI or his branch offices.  
Time required for Registration of Product Certification: 
Fourteen working days. (This period does not include th e time for corrective actions by the applicant due to 
deficiencies in the documents or samples; another seven  working days may be required if additional tests are 
required)  Related requirements: 
1.
 The revised inspection standard CNS 14400 (promu lgated on 26 March 2012) for the low-voltage 
three-phase squirrel-cage high-efficien cy induction motors listed in the table will be effective as of 1 
January 2015. In addition, as of the date that this  notice is promulgated, the BSMI will accept such 
applications that those motors have complied with IE2 or IE3 efficiency grade.  Aiming to enhance the 
efficiency of energy utilization, we intend to promot e the regulated energy efficiency requirements, so as 
to reduce electricity loss, in two stages. In the first st age, we regulate those products to meet IE2 efficiency 
grade from 1 January 2015. Further, in the second stage, we require them meet IE3 efficiency grade from 1 July 2016. 
2. The revised inspection standard CNS 1056 (promulgated on 10 August 2011) for the low-voltage 
three-phase induction motors (class A insulation) listed in  the table will be effective as of 1 January 2015. 
In addition, as of the date that this notice is promulga ted, the BSMI will accept such applications that those 
motors have complied with the standard of CNS 1056(promulgated on 10 August 2011) . 
3. The RPC certificates of low-voltage three-phase squi rrel-cage high-efficiency induction motors following 
CNS 14400(promulgated on 9 September 2003), which we re issued by the BSMI before 31 December 
2014, will be only valid till 31 December 2014 if they do not comply with the IE2 efficiency grade. The 
RPC certificates of those products will be only valid ti ll 30 June 2016 if they do not comply with the IE3 
efficiency grade. 
4.
 The RPC certificates of low-voltage three-phase induction motors (class A insulation) following CNS 
1056 (promulgated on 31 August 1999), which were is sued by the BSMI before 1 January 2015, will 
remain valid until the expiration date of these certificates.  From 1 January 2015, the new application case 
must comply with CNS 1056 (promulgated on 10 August 2011). 
5. The obligatory applicants can subm it the technical files to the BSMI to apply for Certificates of RPC and 
register the certified products in our Database. Th en the BSMI shall issue Certificates of RPC and 
identification numbers to the obligatory applicants . Accordingly, they can print or affix the RPC 
Certification Inspection Marks on the products by themselves. 
6. The inspection standards shall be the version as listed in  this public notice. When the applicable standards 
are revised or amended, the date of applying these re vised or amended standards for inspection shall be 
further decided and announced by the BSMI.