Our Products
44 Categories · IEC & IS Compliant · OEM Ready
High-performance electrical insulation materials engineered for transformers, motors, switchgear, EV drives, and renewable energy systems. Custom dimensions & CNC machining available.
ACC Insulations is a leading electrical insulation products manufacturer based in India, operating since 1994. We supply a comprehensive range of high-performance electrical insulation materials to transformer manufacturers, motor and generator OEMs, switchgear panel builders, EV manufacturers, and industrial equipment companies across India and internationally.
Our catalogue spans 44 categories — epoxy and composite sheets (FR-4, G-10, G-11), FRP and fiberglass products (pultruded profiles, cylinders, tubes, sheets), industrial and motor insulation (phenolic laminates, EV motor slot liners), insulating papers and wood (kraft paper, diamond dotted paper, DMD/NMN), and transformer insulation materials (pressboards, machined components). All products comply with IEC and IS standards.
Epoxy &
Composite Sheets
Our epoxy glass fibre laminate sheets — including FR-4 unclad laminates, G-10 and G-11 grades — deliver dielectric strengths up to 45 kV/mm for switchgear panels, transformer barriers, busbar supports and high-voltage isolation. Compliant with IEC 60893 and NEMA LI-1. Available 0.5 mm to 100 mm with custom cut-to-size. 9 Products
Featured
Fiberglass &
FRP Products
Fibre Reinforced Polymer (FRP) products combine the dielectric properties of glass fibre with the structural strength of thermoset resins — pultruded profiles, cylinders, sheets, and glass fiber tubes. Non-conductive, corrosion-resistant structural members for HT/LT transformer windings, switchgear enclosures and HV support structures. 11 Products
Industrial &
Motor Insulation
From EV traction motor slot liners and AC/DC motor insulation to solar inverter insulation, wind turbine generator insulation, phenolic moulding compounds, and industrial laminate sheets. These materials support renewable energy and EV sectors alongside conventional industrial insulation. 7 Products
EV Sector
Renewable Energy
Renewable Energy
Insulating Papers
& Wood
Cellulose and composite insulation papers — the foundation of every oil-immersed transformer. Electrical grade kraft paper, crepe paper, diamond dotted paper (epoxy bonded), DMD composite, NMN Nomex-Mylar-Nomex for Class H, and electrical wood. All cellulose papers comply with IEC 60641 and IS 1576. 10 Products
Best Seller
Transformer
Insulation Materials
Dedicated to oil-immersed power and distribution transformer insulation systems. Calendered pressboards, high density pre-compressed pressboards (density 1.1–1.2 g/cm³ per IEC 60641), electrical grade press paper, densified laminated wood for clamping frames, and CNC machined transformer components to OEM drawings. 7 Products
Core Product
Why Engineers
& OEMs Choose ACC
What separates a reliable insulation supplier from one that creates problems on the production floor — six reasons engineering teams trust us.
IEC, IS & NEMA Compliant
Every product family manufactured and tested to the relevant international standard — IEC 60641, IEC 60893, NEMA LI-1. Test certificates on every batch.
Custom Dimensions & CNC Machining
Standard sheet sizes or custom cut-to-size, drilled, milled and threaded to OEM drawing specifications. CNC facility handles complex transformer, motor, and switchgear parts.
Full Range, Single Source
44 product categories — fewer suppliers, fewer purchase orders, simpler quality management. Pressboards, kraft paper, FRP cylinders, and machined components from one partner.
In-House Testing
Every batch tested for dielectric strength, dimensional tolerance, moisture content, and mechanical properties before dispatch. No shortcuts on the quality chain.
Pan-India Supply & Export Ready
Supply to transformer manufacturers, switchgear OEMs and motor manufacturers across all major industrial states in India, and export with required documentation.
Technical Support & Grade Selection
Our engineering team helps select the right material grade — voltage, thermal class, mechanical load, oil compatibility — with a datasheet and quotation within one business day.
Industries
We Serve
Our electrical insulation materials are used across every segment of India's power, manufacturing and clean energy sectors.
Power Transformers
11 kV to 765 kV class power and distribution transformers
Switchgear & Panels
LV, MV and HV switchgear panel manufacturers
Motors & Generators
AC/DC motor and generator OEMs — slot liners, wedges, barriers
Electric Vehicles
EV traction motor insulation — high-temperature slot liner materials
Solar Energy
Solar inverter insulation — high-voltage DC dielectric materials
Wind Energy
Wind turbine generator insulation — Class H thermally stable composites
Railway Traction
Traction transformer and locomotive motor insulation components
Heavy Industry
Furnace transformers, rectifiers, industrial drives — specialist grades
Standards &
Compliance
Manufactured and tested to the following international and Indian standards. Test certificates available on request.
Frequently
Asked Questions
Common questions from engineers and procurement teams when sourcing insulation materials.
Can't Find
the Specification
You Need?
We manufacture custom electrical insulation components to OEM drawings and technical specifications. Tell us your material type, thickness, voltage level, thermal class, and quantity — our engineering team responds with a datasheet and quotation within one business day.
