Switch with ?CCC Ex? for the Chinese market

CCC ? without proof China Compulsory Certification, many industrial goods are denied usage of the ?Middle Kingdom?. Since 1st October 2020, this compulsory marking has also extended to products with explosion protection. Therefore, Impressive that fall under the provisions have the corresponding certificate ? ?CCC Ex?. This also includes switches such as mechanical pressure and temperature switches.
China Compulsory Certification has been around force since 2002. The introduction of CCC was aimed at creating a uniform certification standard for selected goods pertaining to the People?s Republic of China. It had been also designed to ensure equal treatment of domestic and foreign companies and their goods in accordance with WTO rules.
Certification applies for domestic and foreign companies
At first, 132 product groups were included in CCC. Since then, the products listed therein may neither be sold or used in China nor imported into the country without a CCC certificate. Accordingly, the certification requirement applies equally to domestic and foreign companies.
Examples of instruments with CCC Ex certificate: model PCA compact pressure switch (left), model TXS miniature temperature switch (right) and model MA1 pressure switch with diaphragm element
?CCC Ex? marking
Initially, WIKA?s measuring instruments were not suffering from the regulation. This changed when China also included explosion-protected products in the product group catalogue. Since that time, these products should be marked with ?CCC Ex?. The necessary certification is carried out in a three-stage process. This consists of:
type testing (assessment and certification of the Ex product)
the factory inspection (initial certification of the respective manufacturing site)
the annual monitoring audits after certification
Five-year validity
Like every CCC certificate, ?CCC Ex? can be valid for five years after successful testing, provided the manufacturer carries out the annual monitoring audits.
All WIKA Ex products that match the listed goods of the CCC will have a ?CCC Ex? marking. They are able to therefore be utilized for the Chinese market without the problems. The instruments include mechanical pressure and temperature switches, electrical thermometers (resistance thermometers and thermocouples) in addition to float and tuning fork switches for level monitoring.
?CCC Ex? ? Two switch series
The mechanical pressure and temperature switches consist of two series:
Instruments with flameproof enclosure (Ex d) for measuring gauge pressure (PXA, PCA, MA, MAG, MAB, MAH, BAX, BA), differential pressure (DE, DA), absolute pressure (APA) and temperature (TXA, TCA, TAG)
Intrinsically safe instruments (Ex i) for measuring gauge pressure (PXS, PCS, MW, BWX), differential pressure (DC, DW), absolute pressure (APW) and temperature (TXS, TCS, TWG).
Note
Further information on our pressure switches and temperature switches can be found on the WIKA website. Would you like to buy pressure switches? Inside our WIKA online-shop you will find a few of our standard designs. If you have any questions, your contact will gladly assist you to.
See also our article
CCC for electrical thermometers

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