Mandatory BIS Standard
ISI Mark for Electrical Transformers
- Minimum marking fee per year
- ₹28,400 – ₹1,42,000
- Micro to large firms
- Testing cost
- ₹45,000 – ₹11,47,580
- Based on 17 lab prices
- HSN code
- 85042100
- Check the code with customs
BIS license assures that electrical transformers fulfill Indian quality and safety requirements. Electrical transformer producers must acquire ISI mark approval under IS 2026, IS 1180, and related transformer standards.
Applicable Indian Standards for ISI Mark for Electrical Transformers
| IS number | Product | Testing cost |
|---|---|---|
| IS 1180 (Part 1) | Out door type Oil immersed Distribution Transformers upto and including 2500 kVA, 33 KV-specification Part 1 Mineral oil immersed | ₹45,000 – ₹11,47,58017 labs |
Minimum marking fee by firm size
You pay BIS a minimum marking fee every year. Micro, small and medium firms (with Udyam registration) pay less. BIS also works out a fee from the unit rate and your production. You pay whichever amount is higher.
- Large firms
- ₹1,42,000
- Medium firms
- ₹1,14,000
- Small firms
- ₹71,000
- Micro firms
- ₹28,400
Unit rate: ₹3 per kVA
- Other BIS charges
- ₹9,000 for every ISI mark product: application charge ₹1,000 · licence fee ₹1,000 · audit charges ₹7,000
- Foreign manufacturers
- Get a detailed quote
- Our consulting fee
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All prices are a guide only and do not include GST. Rules and dates can change, so check the latest notice before you apply. Ask us for an up-to-date quote.
Common questions
What is ISI mark for electrical products?
The ISI mark certifies that electrical products meet BIS (Bureau of Indian Standards) quality and safety requirements, ensuring reliability, efficiency, and compliance with Indian regulations.
Is 1180 standard for transformers?
Yes, IS 1180 (Part 1) specifies quality, safety, and performance requirements for distribution transformers, ensuring efficiency and reliability in power transmission.
Which mark is necessary for electric appliances?
The ISI mark is mandatory for electrical appliances in India, ensuring compliance with BIS safety standards for public and industrial use.
What is the safety mark on electrical appliances?
The ISI mark (India), CE mark (Europe), and UL mark (USA) indicate that an electrical appliance meets specific safety and performance standards.
What is the IEC standard for electrical transformers?
The IEC 60076 series defines international standards for power transformers, covering specifications, testing, insulation, and performance requirements.
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- BIS ISI Mark for Dishwasher IS 302 Part 1Mandatory
- BIS ISI Mark for Electric Bean Slicer IS 302 Part 1Mandatory
- BIS ISI Mark for Electric Boilers IS 302 Part 1Mandatory
- BIS ISI Mark for Electric Can Openers IS 302 Part 1Mandatory
- BIS ISI Mark for Electric Coffee Makers IS 302 Part 1Mandatory
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