The Department of Trade and Industry’s Bureau of Philippine Standards (DTI-BPS) adopts the international standard of the International Electrotechnical Commission (IEC), IEC 60947-:2020 Low-voltage switchgear and controlgear – Part 2: Circuit breakers, as Philippine National Standard, PNS IEC 60947-2:2020 through the recommendation of the Technical Committee on Electrical Wiring Devices (BPS/TC10).  This standard cancels and replaces PNS IEC 60947-2:2015.

PNS IEC 60947-2:2020 specifies the characteristics of circuit-breakers, the conditions with which circuit-breakers shall comply with reference to: 1)  operation and behavior in normal service; 2)  operation  and  behavior  in  case  of  overload  and  operation  and  behavior  in  case  of  short-circuit, including co-ordination in service (selectivity and back-up protection); 3)  dielectric properties,  the  tests  intended for confirming that these  conditions  have  been  met  and  the  methods  to  be  adopted for these tests, and the information to be marked on or given with the product.

The standard applies  to  circuit-breakers,   intended  to  be  installed  and  operated  by  instructed  or  skilled  persons with the  main  contacts  intended  to  be  connected to circuits and the rated voltage not to exceed 1 000   V a.c. or 1   500 V d.c.. Circuit breakers rated  above  1 000 V a.c.  but  not  exceeding  1 500 V a.c may  also  be  tested  to this standard. It also contains additional requirements for integrally fused circuit-breakers. The standard is applicable to circuit-breakers whatever the rated   currents,   the   method   of   construction   or   the   proposed   application.

Circuit breaker is a regulated product by the BPS through its Mandatory Product Certification Schemes: the Philippine Standard (PS) Quality and/or Safety Certification Mark Licensing Scheme for manufacturers and the Import Commodity Clearance (ICC) Certification Scheme for importers.  Products covered by the mandatory certification, whether locally manufactured or imported, are not allowed to be distributed in the Philippine market without the necessary PS or ICC marks. The PS Quality and/or Safety Certification Mark License is granted to either local or foreign manufacturer whose factory and product have successfully complied with the requirements of the PNS ISO 9001 and the relevant product standard for which in this case for circuit breakers will be PNS IEC 60947-2:2020. Likewise, ICC Certificate is issued to an importer whose imported products have shown conformance to relevant standards through inspection, verification, and product testing.

The PS Mark and ICC Sticker affixed to the products serve as the consumer’s assurance that the products they purchase are certified by the BPS.

The DTI-BPS is the National Standards Body of the Philippines. It is the country’s member to the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).

A copy of the standard may be secured for a minimal fee from the DTI-BPS Standards Data Center at (02) 7791.3127 and through This email address is being protected from spambots. You need JavaScript enabled to view it..