The Bureau of Indian Standards (BIS) has notified the revised Indian Standard for UPS/INVERTORS, replacing IS 16242 (Part 1):2014 / IEC 62040-1:2008 with the new IS 16242 (Part 1):2025 / IEC 62040-1:2017. This update introduces substantial changes to align India’s safety and performance requirements with the latest international practices.
🔑 Key Changes in the 2025 Revision
Reference to IEC 62477-1:2012 as a supporting document.
Addition of the definition of movable UPS.
Modified clause on flammability of enclosure materials.
Additional working voltages in creepage distance test.
New requirements in steady force test.
Additional checks for handles and manual control securement.
Enhanced touch current measurement test.
Revised capacitor discharge test for pluggable type B UPS + new requirements for permanently connected UPS.
Stricter temperature rise test criteria.
Modified input current test parameters.
Introduction of several new test clauses including:
Short-time withstand current
Unsynchronized load transfer test
Loss of coolant test
Dry heat and damp heat tests
Hydrostatic pressure test
📅 Implementation Timeline
The revised standard will come into effect on 19 November 2025.
⚙️ BIS Implementation Guidelines
Existing licensees must apply for full test reports as per the new IS 16242 (Part 1):2025 / IEC 62040-1:2017 for all lead models under their licence.
Applicants must also provide an undertaking stating which models/series comply with the revised standard.
If test reports have already been issued against the old standard (2014/2008 version), applicants must submit a declaration confirming compliance with the revised standard by the final implementation date.
Non-compliant licences/models will be cancelled or deleted after 19 November 2025.
This transition underscores BIS’s commitment to ensuring higher safety and performance standards for UPS and inverter products in India, bringing them closer to global benchmarks.
For assistance with compliance, test reports, or certification support, please contact us at india@c-prav.com
