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
12KV Integrated Sensor
  • Rated Voltage:12KV
  • Material:Epoxy resin
CG5-35KV Integrated Sensor
  • Rated Voltage:35kV
  • Material:Epoxy resin
ZJ-12KV Series Post Insulators
  • Rated Voltage:12kV
  • Dimensions:φ85×170 mm
  • Rated Current:1600A
  • Power Frequency Withstand Voltage:42kV
  • Lightning Impulse Withstand Voltage:85kV
ZJ-24KV Series Post Insulators
  • Rated Voltage:24kV
  • Dimensions:φ110×225 mm
  • Rated Current:2000A
  • Power Frequency Withstand Voltage:65kV
  • Lightning Impulse Withstand Voltage:125kV
ZJ-35KV Series Post Insulators
  • Rated Voltage:35kV
  • Dimensions:φ155×380 mm
  • Rated Current:3150A
  • Power Frequency Withstand Voltage:95kV
  • Lightning Impulse Withstand Voltage:185kV
12KV Integrated Insulator 630～1250A
  • Rated Voltage:12KV
  • Rated Current:630～1250A
24KV Integrated Insulator
  • Rated Voltage:24KV
  • Rated Current:1600A
35KV Integrated Insulator
  • Rated Voltage:35KV
  • Rated Current:2500A
CH/CHJ 12kV Contact Boxes
  • Rated Voltage:12KV
  • Material:Epoxy resin
CH/CHJ 24kV Contact Boxes
  • Rated Voltage:40.5KV
  • Material:Epoxy resin
40.5 kV Contact Boxes
  • Rated Voltage:40.5kv
  • Material:Epoxy resin
TG Series Wall Bushings
  • Rated Voltage:12kv/ 15kv /24kv
  • Material:Epoxy resin
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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