Guidelines for implementation of IS 16242 (Part 1):2025 /IEC 62040-1:2017 for UPS/INVERTORS

BIS has established revised Indian Standard for UPS/INVERTORS i.e. IS 16242 (Part 1):2025 /IEC 62040-1:2017 against the standard IS 16242 (Part 1): 2014/IEC 62040-1: 2008.  

This revision has covered the following changes: 

1. IS 16242 (Part 1):2025/IEC 62040-1: 2017 uses IEC 62477-1:2012 as a reference document (RD).
2. Definition of movable UPS has been added.
3. Modified the clause on flammability of enclosure materials.
4. Additional working voltages added in creepage distance test.
5. Additional requirements in steady force test.
6. Additional requirements in handles and manual control securement test.
7. Additional requirements in touch current measurement test.
8. Modified requirements in capacitor discharge test for pluggable type B UPS and additional requirement for permanently connected UPS.
9. Additional requirements in temperature rise test.
10. Modified requirements in input current test.
11. Additional clauses: short time withstand current, unsynchronized load transfer test, loss of coolant test, dry heat test, damp heat test, hydrostatic pressure test.

The date of implementation of IS 16242 (Part 1):2025 /IEC 62040-1:2017 is 19 November 2025.  

With the view of these significant changes BIS has released the guidelines for the implementation of the revised Indian Standard IS 16242 (Part 1):2025 /IEC 62040-1:2017, which as follows:  

1. All existing licensees must apply for the complete test reports as per the revised IS 16242 (Part 1):2025 /IEC 62040-1:2017 for all the lead models covered in the scope of the licence.  
2. The applicants are also required to submit an undertaking stating the models/series complying to IS 16242 (Part 1):2025 /IEC 62040-1:2017. 
3. The cases where sample has been submitted in the Laboratory or Test Report have been issued by the Laboratory against old standard i.e. IS 16242 (Part 1): 2014/IEC 62040-1: 2008, the applicants will be required to submit the declaration that they will implement the revised standard by the last date of implementation of IS 16242 (Part 1): 2025/IEC 62040-1:2017. 
4. After the last date of implementation of the revised standard i.e. 19 November 2025, licence/models not complying to revised IS 16242 (Part 1):2025 /IEC 62040-1:2017 will be cancelled/deleted from the scope of the licence.  

Official notification can be referred from here: Guidelines