PUTAI specializes in the development and manufacture of high-voltage insulation components, which are widely used in substations, industrial power grids, new energy systems, and harsh scenarios such as high humidity, high dirt, and high salt spray around the world.

Insulation Component
ALL Inflatable Cabinet Bushing Series Contact Box Wall Bushing Sensors Embedded Poles Epoxy Insulator Elbow Plates Series
Switchgear
ALL Vacuum Circuit Breaker (VCB) Load Switch Disconnecting Switch Earthing Switch / Grounding Switch Switchgear
Protection Equipment
ALL Fuses Surge Arresters
Transformer
ALL Distribution Transformer Dry Type Transformer Oil-Immersed Transformer
Cable Accessories
ALL Cold Shrink Cable Accessories Heat Shrink Cable Accessories High Voltage Cable Plug and Socket Connector Explosion proof Joint Enclosure Cable Fusion Splice Cable Branch Box
CH3-12KV/150 Contact Box 630-1250A
  • Rated Voltage:12kV
  • Rated Current:630～1250A
CH3-12KV/180 Contact Box 1250A
  • Rated Voltage:12kV
  • Rated Current:1250A
CH3-12KV/180 Contact Box (Large Aperture) 1250A
  • Rated Voltage:12kV
  • Rated Current:1250A
CH3-12KV/190 Contact Box 1600A
  • Rated Voltage:12kV
  • Rated Current:1600A
CH3-12KV/208 Contact Box 1600-2000A
  • Rated Voltage:12kV
  • Rated Current:1600～2000A
CH3-12KV/250 Contact Box 2500-3150A
  • Rated Voltage:12kV
  • Rated Current:2500～3150A
CH3-12KV/270 Contact Box 4000A
  • Rated Voltage:12kV
  • Rated Current:4000A
JNY2-12KV Contact Box 630-1250A
  • Rated Voltage:12kV
  • Rated Current:630～1250A
CH3-24KV/225 Contact Box 630-1600A
  • Rated Voltage:24kV
  • Rated Current:630～1600A
CH3-24KV/250 Contact Box 2000-4000A
  • Rated Voltage:24kV
  • Rated Current:2000～4000A
CH3-35KV/660 (Upgraded) Contact Box (Two-way)
  • Rated Voltage:35kV
  • Rated Current:3150A
CH3-35KV/660 (Upgraded) Contact Box (Three-way)
  • Rated Voltage:35kV
  • Rated Current:3150A
Characteristics of Insulation Component
Rated Voltage
2kV~40.5kV
Material
Vacuum Cast Epoxy Resin
Power Frequency Withstand Voltage
42kV/1min (12kV class)
Mechanical Strength
≥800MPa
Lightning Impulse Withstand Voltage
75kV (Apex)
Certification
IEC 62271-200, UL 508
Materials
6 global material development partners
Detection
100% internal dielectric and thermal performance testing
Compliance
Designed to meet IEC/ANSI standards
Traceability
Complete batch traceability and leading technical support
Why Choose Us
Strong weathering resistance
adapt to extreme environments such as coastal, high pollution, high temperature and high humidity.
High reliability
Reduces the risk of grid failures and reduces maintenance costs.
International Standard Adaptation
Meet the requirements of power equipment in the European, Middle East and Southeast Asian markets.
FAQ
What types of insulation components do you offer?
We offer epoxy resin insulators, embedded poles, bushings, and insulation parts designed for medium and high voltage switchgear and transformers.
What voltage range do your insulation components support?
Our insulation products are suitable for systems rated from 3.6kV up to 40.5kV, depending on the application.
Our insulation products are suitable for systems rated from 3.6kV up to 40.5kV, depending on the application.
Yes, all our insulation components meet IEC 60243 and IEC 62271 standards for electrical strength and mechanical integrity.
Can I request customized insulator designs?
Yes, we can customize dimensions, mounting options, and material formulations based on your technical drawings or specifications.
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Service & Support
Our certification team consists of 85+ engineers with more than 20 years of professional experience
24/7 Service. Average emergency response time is limited to less than 12 hours
Suitable for substations, industrial power grids, new energy projects and other demanding scenarios
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