Pin post insulator — all models available at a good price

The Pin post insulator is a device used to hold high-voltage power lines in the power transmission system, acting as an electrical insulator that prevents current from leaking from the line to the pole. At TETA INTERTRADE we sell many models of Pin post insulator, such as Pin Post 56/57-2, 56/57-3, and 56/57-4, popular in Thailand MEA/PEA systems, sourced directly from well-recognized brands such as SPI and FAC, designed for safe use, durable, and efficiently meeting the needs of high-voltage electrical work.

What is a Pin post insulator (Pin Post Insulator)?

A Pin post insulator (Pin Post Insulator) is a type of electrical insulator designed similarly to a straight-stem insulator (Pin Type Insulator); the difference is that its neck or stem is longer to prevent current puncture-through, and its top wire seat is made from high-quality porcelain. It can support and carry power lines in the 22-33 kV distribution system well, especially in high-risk areas.

What does a Pin post insulator do?

The Pin post insulator supports and holds power lines in the proper position, while acting as an electrical insulator that prevents current from leaking from the line to the pole. Its multi-layer skirt design gives it a long creepage distance, helping prevent current leakage even in highly humid or dusty conditions. It also helps maintain a safe distance between the wire and other structures.

What work is the Pin post insulator suited for?

The Pin post insulator is designed to support power lines in high-voltage systems and can be used in various environments. It is divided into 3 main models suited to appropriate applications, as follows:

1. Insulator Pin Post 56/57-2 Pin post insulator

The Pin Post 56/57-2 insulator is the basic model, suitable for general areas, supporting 22 kV. Its 2-layer skirt design gives a creepage distance suitable for moderate-pollution areas such as general residential zones or suburbs. It withstands normal weather well, is lightweight, easy to install, and hassle-free to maintain — ideal for general power distribution work.

2. Insulator Pin Post 56/57-3 Brand FAC

The Pin Post 56/57-3 insulator is an upgraded, higher-performance model, supporting up to 33 kV. Its 3-layer skirt design gives a longer creepage distance, suitable for high-pollution areas such as industrial zones or coastal areas. Its special surface coating helps resist dust and corrosion well, giving a long-lasting service life.

3. Insulator Pin Post 56/57-4 Brand FAC

The Pin Post 56/57-4 insulator is the top-performance model, designed for work requiring exceptional durability, supporting 33 kV. Its 4-layer skirt design gives the longest creepage distance, suitable for very high-pollution areas or harsh environments such as areas with dense dust or year-round high humidity. Its especially strong design helps it withstand harsh weather well.

DetailsPin post insulator

TETA INTERTRADE sells every model of Pin post insulator, supporting 22 – 33 kV, assured under the TIS standard. If you would like more details on price, specifications, and applications, you canask our teamdirectly.

Sample product list

• Insulator Pin Post 56/57-2 Brand SPI
• Insulator Pin Post 56/57-3 Brand FAC
• Insulator Pin Post 56/57-4 Brand FAC

For businesses that need to buy in large quantities, we offer wholesale Pin Post insulators in all models, so you can manage your project costs efficiently.

Precautions when installing a Pin post insulator

Installing a Pin post insulator requires care in several respects to keep the work safe and high-performing, as follows:

• Choose a Pin post insulator appropriate to the voltage level and environment.
• Installation must be done by a skilled technician so it is correct and safe.
• Avoid installation in areas with high heat or heavy dust.
• Inspect the installation to ensure there is no current leakage.
• Do not modify or alter the insulator components without the manufacturer approval.

Order Pin post insulator at wholesale price, assured to the TIS standard, at TETA INTERTRADE

When it comes to high-voltage electrical equipment, especially the Pin post insulator, brands SPI and FAC come with full safety and industrial standards. Importantly, you should buy from a trusted distributor like TETA INTERTRADE — a wire and equipment partner ready to offer the right solution for your project.

• A full range of electrical equipment, covering both high- and low-voltage
• A direct importer from manufacturers, at great value
• Stock ready to ship, supporting urgent jobs
• Advice from a team of engineers and technicians
• Free nationwide delivery

For those interested in buying Pin post insulators at wholesale prices, TETA INTERTRADE offers every model, with a team ready to advise for free, plus special discount promotions and free nationwide delivery. To order or ask for more information, contact us at

• LINE : https://lin.ee/NaG9WJP 

Phone: 02-068-9690 or 086-308-3741

Frequently asked questions about Pin post insulators (FAQs) 

Q : Pin post insulator (Pin Post Insulator) — what is it? ?

A: A Pin post insulator (Pin Post Insulator) is an electrical device used to hold and support high-voltage power lines in the transmission system, acting as an electrical insulator that prevents current from leaking from the line to the pole. It is specially designed to be durable against high tension and usable in dusty or highly humid environments.

Q : Pin post insulator— which models are suitable for high-voltage systems ?

A : Pin post insulatorat TETA INTERTRADE sells several models, such as Pin Post 56/57-2 supporting 22 kV, Pin Post 56/57-3 supporting 33 kV and Pin Post 56/57-4 supporting 33 kV , designed for use in different environments, especially in high-pollution areasorharsh weather

Q: What precautions are there when installing a Pin post insulator?

A: Installing a Pin post insulator requires care in several respects, such as choosing a model appropriate to the voltage and environment, having a skilled technician install it correctly and safely, avoiding installation in areas with high heat or heavy dust, and never modifying the product or using it for the wrong purpose.

Q : Pin post insulatorhasService life— how long? ?

A: The Pin post insulator at TETA INTERTRADE has a long service life of about 25-30 years, depending on maintenance and the operating environment. Choosing a high-quality Pin post insulator from a well-recognized brand also helps make it long-lasting and high-performing.

Q : How to choose aPin post insulator — what factors should be considered? ?

A: Choosing a Pin post insulator should consider several factors, such as the system voltage rating, the required creepage distance, and the operating environment. At TETA INTERTRADE, our expert team is ready to advise on choosing the right product for your application and can recommend models that meet industrial standards.