BIS CERTIFICATION FOR A.C. STATIC DIRECT CONNECTED WATT HOUR SMART METER CLASS 1 AND 2 IS 16444 Part 1

Published Date: March 18, 2025 4 min Read

BIS certification is essential for A.C. Static Direct Connected Watt Hour Smart Meters of Class 1 and 2 as per IS 16444 (Part 1). This standard ensures that smart meters meet stringent requirements for accuracy, durability, and operational efficiency, making them reliable for energy measurement and billing applications. Certification guarantees that these meters undergo rigorous testing for electrical parameters, communication protocols, data security, and environmental sustainability, ensuring precise and tamper-resistant performance. Compliance with IS 16444 (Part 1) signifies a manufacturer’s commitment to producing high-quality smart meters that support efficient energy management and smart grid integration.

IS 16444 (Part 1) – A.C. Static Direct Connected Watt Hour Smart Meter Class 1 and 2

This standard specifies the technical requirements and testing methods for smart meters used in direct connection applications for energy measurement. It defines performance parameters such as accuracy class, communication capabilities, load profile recording, and power consumption to ensure seamless integration into advanced metering infrastructure (AMI). The standard also outlines security measures against tampering, remote communication functionalities, and interoperability with utility systems. Smart meters under IS 16444 (Part 1) must provide reliable energy measurement, support two-way communication, and ensure data integrity. Testing procedures assess metering accuracy, endurance, surge protection, and adherence to national power distribution regulations, making BIS certification crucial for manufacturers.

Benefits of BIS Certification for Smart Meters

BIS certification under IS 16444 (Part 1) ensures compliance with national quality and safety standards, enhancing product credibility and market acceptance. For manufacturers, certification provides regulatory approval, a competitive edge, and trust from utility providers and consumers. For end users, certified smart meters guarantee accurate billing, secure data transmission, and compatibility with modern energy management systems. Certification also facilitates procurement approvals for government and private-sector energy distribution networks, ensuring reliable and standardized metering solutions.

Key highlights

Product Name	A.c. Static Direct Connected Watt Hour Smart Meter Class 1 And 2
Applicable Indian Standard	IS 16444 Part 1
Applicable Certification Scheme	Product Certification Scheme (ISI Mark Scheme) Scheme 1 - Schedule 2
Compliance Requirement	Mandatory
Quality Control Order	Click here
Scope as per Standard	This standard specifies the requirements for static watt-hour smart meters of accuracy class 1 and 2, designed for measuring alternating current (AC) electrical active energy at a frequency of 50 Hz. It applies to both single-phase and three-phase balanced and unbalanced loads. The standard covers the type tests, routine tests, and acceptance tests necessary to ensure the reliability, accuracy, and performance of these smart meters.

Note

For Detailed Information about the Procedure for BIS ISI Certification, Visit :

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Procedure for Domestic Manufacturer
Procedure for Foreign Manufacturer

Timeline for BIS Certification

The estimated timeline for obtaining BIS certification under IS 16444 (Part 1) is as follows:

For Indian Manufacturers (Standard Timeframe – 30 days)
For Foreign Manufacturers (Standard Timeframe – 180 days)

Conclusion

BIS certification under IS 16444 (Part 1) is crucial for ensuring the accuracy, security, and reliability of smart meters used in direct connection applications. Adhering to this standard enables manufacturers to supply advanced energy measurement solutions that meet industry and regulatory requirements.

Partner with Aleph INDIA for expert assistance in obtaining BIS certification and ensuring compliance with national standards for smart meters.