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In modern industrial applications, reliable switching and control of non-motor electrical loads—such as lighting, heating elements, and resistive loads—is essential. To ensure safety, performance, and compliance with global standards, the Bureau of Indian Standards (BIS) has mandated ISI Mark certification for these products under the standard IS/IEC 60947-4-3: Low-Voltage Switchgear and Controlgear – Part 4/Sec 3.
This certification applies specifically to semiconductor controllers and contactors designed for non-motor loads, ensuring they meet strict safety and quality criteria.
What Are Semiconductor Controllers for Non-Motor Loads?
These are solid-state switching devices used in electrical installations where precision control of non-motor loads is required. Typical applications include:
Industrial ovens and heaters
Lighting systems
Power supplies and UPS systems
Automation and control panels
Unlike motor starters, these devices manage electrical loads without rotating machinery, making their usage and stress conditions unique.
Applicable Indian Standard
Standard Name: IS/IEC 60947-4-3
Title: Low-Voltage Switchgear and Controlgear – Part 4: Contactors and Motor-Starters – Section 3: Semiconductor Controllers and Semiconductor Contactors for Non-Motor Loads (Third Revision)
Type: ISI Mark Certification (Mandatory)
Regulating Authority: Bureau of Indian Standards (BIS)
Compliance Mandate: As per Quality Control Order (QCO) issued by the Government of India
Objective of BIS Certification
The purpose of this certification is to:
Ensure safe operation of semiconductor contactors in non-motor applications
Promote uniform quality standards across domestic and imported products
Prevent use of unsafe or substandard components in industrial setups
Align Indian manufacturing with global electrical standards (IEC)
Major Tests as per IS/IEC 60947-4-3
Testing is conducted in BIS-approved laboratories and includes:
Dielectric Strength and Insulation Resistance
Load Switching Capacity and Endurance
Thermal and Short-Circuit Withstand Tests
Functional Performance Tests
EMC (Electromagnetic Compatibility)
Environmental Tests (Temperature, Humidity)
Electrical and Mechanical Endurance Cycles
BIS Certification Process
The process for obtaining the BIS license under Scheme I – ISI Mark Scheme is as follows:
Online Application via the Manakonline Portal
Document Submission including technical specifications, layout, manufacturing process, etc.
Product Testing in BIS-recognized laboratories
Factory Audit by BIS officials
Grant of License upon successful compliance
Marking Authorization to use the ISI mark
Documents Required
Company Registration and Factory License
Manufacturing Flowchart and Process Details
In-house Testing Capabilities and Equipment List
Technical Data Sheets of the Products
Packaging and ISI Marking Samples
Undertaking of Compliance and Safety
Test Reports (if applicable)
Power of Attorney (for foreign manufacturers)
For Foreign Manufacturers
Overseas entities can apply through the Foreign Manufacturers Certification Scheme (FMCS). An Authorized Indian Representative (AIR) must be appointed to act as a liaison between the manufacturer and BIS.
Estimated BIS Certification Fees
Component Estimated Cost (INR)
| Application Fee | 1,000 |
| Product Testing | 30,000 – 1,00,000 |
| Factory Audit | 7,000 – 15,000 |
| License Fee (Annual) | 1,000 |
| Marking Fee | Depends on production volume |
How Standphill India Can Help
Navigating BIS certification requirements can be complex. Standphill India offers end-to-end consultancy for both Indian and foreign manufacturers, helping you achieve seamless certification under IS/IEC 60947-4-3.
Our Services Include:
Determining applicable BIS standard and product scope
Portal registration and document preparation
Coordination with BIS labs for product testing
Audit preparedness and compliance review
Post-certification support and renewal management
We simplify the BIS certification journey, enabling manufacturers to meet compliance goals with confidence and speed.
Conclusion
Compliance with IS/IEC 60947-4-3 for semiconductor controllers and contactors for non-motor loads is now a regulatory requirement for manufacturers and importers in India. Achieving BIS certification not only ensures legal compliance but also strengthens your brand's credibility in the market.
Partner with Standphill India to achieve smooth, error-free BIS certification—your trusted gateway to the Indian electrical equipment market.
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