Walk into any factory, power plant, water treatment facility, textile mill, cement plant, or HVAC system in India — and you will find electric motors running silently in the background, driving pumps, fans, compressors, conveyors, and machines of every kind. Electric motors are so fundamental to modern industry that it is almost easy to take them for granted.

But here is a number that puts their importance into perspective: motor-driven systems account for roughly 70% of all the energy consumed by industry in India. That is an enormous share. And it means that if even a small percentage of India's industrial motors are inefficient — consuming more electricity than they should — the national energy bill goes up significantly, industries pay more than they need to, and the environment bears the cost.

This is exactly the problem the Indian government decided to address — not through suggestions or guidelines, but through a legally enforceable mandatory certification requirement. Today, every line operated three phase squirrel cage induction motor sold in India must carry BIS certification under IS 12615 : 2018 and display the ISI Mark on its nameplate. Without this certification, a motor cannot legally be manufactured, imported, sold, or even stored for sale in India.

If you are a motor manufacturer based in India, an importer of motors, or a foreign motor manufacturer eyeing India's growing industrial market — this guide is written for you. We are going to explain everything clearly and in plain language: what IS 12615 requires, what the certification process looks like step by step, what tests your motors must pass, what documents you need, how long it takes, what it costs, and what happens if you skip it.

Before we get into the specifics of IS 12615, let's quickly establish what BIS certification actually means in the context of motors.

BIS stands for Bureau of Indian Standards — India's official national body responsible for setting and enforcing quality and safety standards for products. BIS certification for a product means that the product has been independently tested and verified to meet the relevant Indian Standard, and that the manufacturer's production facility has been inspected and found capable of consistently producing products to that standard.

For induction motors specifically, BIS certification confirms three things to every buyer:

• that the motor is energy efficient (meeting the minimum efficiency class required by law)
• that it is safe to operate (meeting insulation, temperature rise, and electrical safety requirements)
• that it performs consistently (meeting all mechanical and electrical performance parameters defined in the standard)

When a motor manufacturer holds a valid BIS license under IS 12615 : 2018, they earn the right to stamp the ISI Mark on every certified motor nameplate along with their unique CM/L license number. That ISI Mark is what industrial buyers, government agencies, and project consultants look for before purchasing a motor.

IS 12615 : 2018 is the Indian Standard published by BIS titled "Line Operated Three Phase A.C. Motors (IE Code) — Efficiency Classes and Performance Specification." It is India's primary standard for energy efficient three phase squirrel cage induction motors, and it is aligned with the international standard IEC 60034-30-1 — which means Indian manufacturers certified under IS 12615 are producing motors that meet globally recognized efficiency benchmarks.

The standard serves two core purposes:

• First, it defines the efficiency classification system — sorting motors into categories from IE2 (High Efficiency) to IE4 (Super Premium Efficiency) based on how efficiently they convert electrical input into mechanical output.
• Second, it specifies the minimum performance requirements for each efficiency class — covering electrical performance, dimensional standards, insulation requirements, temperature rise limits, noise levels, and testing methods.

Yes, absolutely. BIS certification under IS 12615 : 2018 is legally mandatory for three phase squirrel cage energy efficient induction motors in India. This mandate comes from a specific government order — the Energy Efficient Induction Motors — Three Phase Squirrel Cage (Quality Control) Order, 2017 — issued by the Ministry of Commerce and Industry under the BIS Act. Mandatory compliance has been in effect since 1st January 2018.

Under this Quality Control Order, the following activities are strictly prohibited for non-certified motors:

• Manufacturing three phase squirrel cage induction motors without BIS certification and attempting to sell them in India
• Importing such motors into India without a valid BIS certificate
• Storing, distributing, or selling non-BIS certified motors anywhere in the Indian market

And here is one that surprises many people — any substandard non-compliant motors that have already been manufactured must be destroyed within three months and disposed of as scrap. You cannot simply hold onto non-compliant stock and wait.

The only exception to this mandatory requirement is for motors that are manufactured exclusively for export — provided those motors meet the foreign buyer's standards and are not sold in India.

Understanding the exact scope of IS 12615 : 2018 is important before you begin the certification process, because the standard does not cover every type of electric motor — it applies specifically to a defined category. Here is exactly what falls within the scope:

For the purpose of certification and testing, IS 12615 : 2018 groups motors based on the following parameters. Understanding this grouping is important because it determines how many sample motors need to be tested and what your certification scope will cover.

• Type of Mounting: Motors are classified as foot mounted, flange mounted, or vertical shaft mounted
• Number of Poles: 2, 4, 6, or 8 poles
• Efficiency Class: IE2 (High Efficiency), IE3 (Premium Efficiency), or IE4 (Super Premium Efficiency)
• Degree of Protection: Minimum IP44 or higher — specifying how well the motor is protected against dust and water ingress
• Insulation Class: Class B, Class F, or higher — defining the motor's thermal tolerance
• Rated Voltage: Up to 1000V
• Rated Output: From 0.12 kW to 1000 kW

The efficiency classification system is at the heart of IS 12615 : 2018, and it is one of the most important things to understand before applying for BIS certification. Your certification will specify which efficiency class or classes your motors are certified under, and this directly determines which markets and applications your motors can serve in India.

This is one of the most practically important sections of this guide for motor manufacturers. Before BIS will grant certification, your motors must be tested at a BIS-recognized, NABL-accredited laboratory and the test reports must confirm that all parameters of IS 12615 : 2018 are met.

The tests prescribed under the standard cover a comprehensive range of electrical, mechanical, and safety parameters. Here is what the testing involves:

Once certified, every motor produced under the BIS license must have its nameplate marked in accordance with IS 12615 : 2018 requirements. The rating plate must clearly show the following information:

Now let's walk through the complete certification process in a way that prepares you for every stage. This is exactly how the process works, explained simply and honestly.

1. 1

   Compliance Assessment and Scope Declaration

   Review your manufacturing capabilities, testing infrastructure, and quality systems against IS 12615 : 2018 requirements. Formally declare which motor models — covering which efficiency classes, pole configurations, frame sizes, mounting types, and insulation classes — you intend to cover under your BIS license.

2. 2

   Product Testing at a BIS-Recognized Laboratory

   Motor samples must be tested at a laboratory that is both NABL-accredited and specifically recognized by BIS for motor testing. Sample selection must cover each pole/insulation class combination in your declared scope.

3. 3

   Document Preparation and Compilation

   Compile all required documents including company registration, factory details, product specifications, manufacturing process documentation, quality control procedures, calibration records, and test reports.

4. 4

   Online Application Submission on BIS Portal

   Submit application through the official BIS portal at manakonline.in with company details, factory information, declared motor scope, all documents, and prescribed application fee.

5. 5

   BIS Document Scrutiny and Query Response

   BIS officers review your application in detail. If they have questions, they will raise formal written queries. These must be responded to promptly with complete and technically precise answers.

6. 6

   Factory Inspection by BIS Officials

   BIS officials physically visit your manufacturing facility to verify everything claimed in your application — factory layout, machinery, testing equipment, quality control records, calibration certificates, and incoming material inspection systems.

7. 7

   Grant of ISI Mark License

   After successful document scrutiny and factory inspection, BIS grants your ISI Mark License with a unique CM/L number. From this point, every motor produced under this license must bear the ISI Mark and CM/L number on its nameplate.

8. 8

   Ongoing Surveillance and Annual Renewal

   BIS conducts periodic surveillance inspections to verify that manufacturing processes and product quality continue to meet IS 12615 : 2018 requirements. Your license must be renewed annually.

Here is the complete list of documents you will need to prepare for your BIS ISI Mark application under IS 12615 : 2018:

Timeline

Cost Components

• Application Fee: Government fee paid directly to BIS when submitting application
• Product Testing Charges: Fees paid to BIS-recognized laboratory for testing motor samples
• Inspection Fees: Charges for BIS officials to conduct factory inspection
• Annual License and Marking Fees: Ongoing costs after certification is granted
• BIS Consultant Fees: Professional charges for managing the certification process

If you are a motor manufacturer based outside India — in Germany, Italy, China, South Korea, Japan, Taiwan, or anywhere else — you can still obtain BIS certification for your motors through the Foreign Manufacturers Certification Scheme (FMCS). India is too large and too fast-growing an industrial market to leave out of your export strategy, and FMCS is the official gateway.

Under FMCS:

• You must appoint an Authorized Indian Representative (AIR) in India who will represent you before BIS
• Your motors must be tested at a BIS-approved laboratory
• BIS officials will travel to your overseas manufacturing facility for a physical factory audit
• The cost of their travel and stay is borne by you

The typical FMCS timeline for induction motors is 3 to 6 months. It is the most involved of all BIS certification routes, but for serious international manufacturers, it is absolutely achievable — and absolutely necessary for legal market access in India.

Let's be very direct about this because the risk is serious and the enforcement is real.

Under the Quality Control Order, 2017 and the BIS Act, 2016, selling three phase squirrel cage induction motors in India without valid BIS certification under IS 12615 : 2018 is a criminal offense. The consequences are not theoretical — they are actively enforced.

Getting BIS certified is not just about avoiding penalties. There are genuine, commercially valuable benefits to having your motors ISI Mark certified under IS 12615 : 2018.

Getting BIS certification for induction motors under IS 12615 : 2018 is a detailed, technical, and time-consuming process. The standard itself is technically complex. The testing requirements are rigorous. The factory inspection requires thorough preparation. And for foreign manufacturers, the FMCS process adds an entire additional layer of complexity.

At Standphill India, we have been guiding manufacturers through BIS certification for over 20 years. We have helped 1,000+ brands across India and internationally get BIS certified — across ISI Mark, CRS, FMCS, WPC, PESO, and EPR schemes. And induction motor certification under IS 12615 is one of our core specialisations.

BIS certification under IS 12615 : 2018 is not just a regulatory requirement — it is a strategic asset that strengthens credibility, ensures legal compliance, and opens doors to growth in India's competitive industrial marketplace.

By understanding the process, preparing documentation, and maintaining quality systems, businesses can achieve certification efficiently and build lasting trust with customers.

Working with experienced advisors like Standphill India further simplifies the journey, helping organizations navigate regulatory complexities with confidence.