Medium-Voltage Epoxy Support Insulators | Elevate Power Distribution: Explore Premium Voltage Transformers | CIC

Medium-Voltage Epoxy Support Insulators / Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

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Medium-Voltage Epoxy Support Insulators | Enhance Safety and Performance with Superior Epoxy Insulators | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including Medium-Voltage Epoxy Support Insulators, current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 45 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 45 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

CIC has been offering customers high-capacity power capacitors since 1974, both with advanced technology and 50 years of experiences, CIC ensures each customer's demands are met.

Medium-Voltage Epoxy Support Insulators
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Medium-Voltage Epoxy Support Insulators

ESI-101, ESI-201, ESI-202, ESI-301, ESI-302

Intended for 12 kV, 24 kV, or 36 kV power systems, these support insulators, also called “post insulators,” are cast in Araldite® epoxy resin. With excellent resistance to moisture, these easy-to-install insulators can be used in locations with salty or polluted air.


Product Features

  • Standard: IEC 60660, or CNS 6796 (C4292)
  • Indoor application
  • Cast in Araldite® epoxy resin
  • Rated Voltage: 12 kV, 24 kV, or 36 kV
  • Type-tested according to CNS 6796 (C4292)
  • Partial Discharge Level: ≤ 100 pC
  • Products can be customized
  • ODM and OEM services available

Selection Table

Model

Rated Voltage

kV

AC / BIL

kV

Creepage

mm

Shed Number

Bending Strength
1 min.

kgf
(N)

Torsional Strength

kgf-m

Tensile Strength

kgf

Approx. Weight

kg

ESI-101

12

36 / 75

165

4

240
(2354)

30

2000

0.5

ESI-201

24

60 / 125

360

9

240
(2354)

30

2000

1.2

ESI-202

25

80 / 150

380

9

240
(2354)

30

2000

1.45

ESI-301

36

80 / 170

520

11

600
(5884)

30

3000

1.9

ESI-302

36

80 / 185

530

11

600
(5884)

30

3000

2.0


Product Dimensions


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High Demand Continues for Versatile Applications of Insulators and Bushings

The widespread use of epoxy resin insulators and bushings across various industries has led to a continuous increase in market demand. CIC not only provides commonly used epoxy resin products for medium-voltage distribution boards, such as support insulators and bushing plates for busbars, but also supplies a wide range of high-precision insulation components for various specialized applications.

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