

| Voltage | Current | Specifications | BIL | Voltage | Current | Specifications | BIL | Voltage | Current | Specifications | BIL |
| 5KV | 170A | SPADE CONNECTOR | 75KV | 18KV | 75A | 7/16" EYEBOLT | 125KV | 25KV | 125A | 5/8" EYEBOLT | 150KV |
| 5KV | 1250A | SPADE CONNECTOR | 75KV | 18KV | 100A | 7/16" EYEBOLT | 125KV | 25KV | 55A | 1 HOLE SPADE | 150KV |
| 8.7KV | 250A | EYEBOLT CONNECTOR | 75KV | 18KV | 125A | 7/16" EYEBOLT | 125KV | 25KV | 75A | 1 HOLE SPADE | 150KV |
| 8.7KV | 100A | SIDEWALL THREADED | 75KV | 18KV | 30A | 7/16" EYEBOLT | 125KV | 25KV | 125A | 1 HOLE SPADE | 150KV |
| 8.7KV | 1600A | SPADE CONNECTOR | 95KV | 18KV | 55A | 5/8" EYEBOLT | 125KV | 25KV | 125A | 2 HOLE SPADE | 150KV |
| 15KV | 55A | 11/32" EYEBOLT | 95KV | 18KV | 75A | 5/8" EYEBOLT | 125KV | 25KV | 208A | 2 HOLE SPADE | 150KV |
| 15KV | 75A | 11/32" EYEBOLT | 95KV | 18KV | 125A | 5/8" EYEBOLT | 125KV | 25KV | 417A | 2 HOLE SPADE | 150KV |
| 15KV | 100A | 11/32" EYEBOLT | 95KV | 18KV | 55A | 1 HOLE SPADE | 125KV | 30/34 KV | 55A | 7/16" EYEBOLT | 150KV |
| 15KV | 130A | 11/32" EYEBOLT | 95KV | 18KV | 75A | 1 HOLE SPADE | 125KV | 30/34 KV | 55A | 5/8" EYEBOLT | 150KV |
| 15KV | 30A | 11/32" EYEBOLT | 95KV | 18KV | 125A | 1 HOLE SPADE | 125KV | 30/34 KV | 55A | 1 HOLE SPADE | 150KV |
| 15KV | 125A | 11/32" EYEBOLT | 95KV | 18KV | 208A | 2 HOLE SPADE | 125KV | 30/34 KV | 55A | 11/32" EYEBOLT | 150KV |
| 15KV | 55A | 7/16" EYEBOLT | 95KV | 18KV | 417A | 2HOLE SPADE | 125KV | 30/34 KV | 55A | 7/16" EYEBOLT | 150KV |
| 15KV | 75A | 7/16" EYEBOLT | 95KV | 18KV | 75A | 11/32" EYEBOLT | 125KV | 30/34 KV | 55A | 5/8" EYEBOLT | 150KV |
| 15KV | 100A | 7/16" EYEBOLT | 95KV | 18KV | 75A | 7/16" EYEBOLT | 125KV | 30/34 KV | 75A | 7/16" EYEBOLT | 150KV |
| 15KV | 100A | 7/16" EYEBOLT | 95KV | 18KV | 75A | 5/8" EYEBOLT | 125KV | 30/34 KV | 75A | 5/8" EYEBOLT | 150KV |
| 15KV | 125A | 7/16" EYEBOLT | 95KV | 18KV | 75A | 1 HOLE SPADE | 125KV | 30/34 KV | 75A | 1 HOLE SPADE | 150KV |
| 15KV | 55A | 5/8" EYEBOLT | 95KV | 18KV | 75A | 2 HOLE SPADE | 125KV | 30/34 KV | 75A | 15/16" EYEBOLT | 150KV |
| 15KV | 75A | 5/8" EYEBOLT | 95KV | 25KV | 125A | 7/16" EYEBOLT | 125KV | 30/34 KV | 75A | 5/8" EYEBOLT | 150KV |
| 15KV | 125A | 5/8" EYEBOLT | 95KV | 25KV | 125A | 2 HOLE SPADE | 125KV | 30/34 KV | 75A | 5/8" EYEBOLT | 150KV |
| 15KV | 208A | 5/8" EYEBOLT | 95KV | 25KV | 55A | 11/32" EYEBOLT | 150KV | 30/34 KV | 75A | 1 HOLE SPADE | 150KV |
| 15KV | 55A | 1 HOLE SPADE | 95KV | 25KV | 75A | 11/32" EYEBOLT | 150KV | 30/34 KV | 75A | 1 HOLE SPADE | 150KV |
| 15KV | 75A | 1 HOLE SPADE | 95KV | 25KV | 100A | 11/32" EYEBOLT | 150KV | 30/34 KV | 55A | 7/16" EYEBOLT | 150KV |
| 15KV | 125A | 1 HOLE SPADE | 95KV | 25KV | 55A | 7/16" EYEBOLT | 150KV | 30/34 KV | 75A | 7/16" EYEBOLT | 150KV |
| 15KV | 125A | 2 HOLE SPADE | 95KV | 25KV | 75A | 7/16" EYEBOLT | 150KV | 30/34 KV | 75A | 7/16" EYEBOLT | 150KV |
| 15KV | 208A | 2 HOLE SPADE | 95KV | 25KV | 100A | 7/16" EYEBOLT | 150KV | 30/34 KV | 75A | 5/8" EYEBOLT | 150KV |
| 15KV | 417A | 2 HOLE SPADE | 95KV | 25KV | 125A | 7/16" EYEBOLT | 150KV | 30/34 KV | 75A | 15/16" EYEBOLT | 150KV |
| 15KV | 75A | 11/32" EYEBOLT | 95KV | 25KV | 55A | 5/8" EYEBOLT | 150KV | 30/34 KV | 125A | 7/16" EYEBOLT | 150KV |
| 15KV | 125A | 7/16" EYEBOLT | 95KV | 25KV | 75A | 5/8" EYEBOLT | 150KV | 30/34 KV | 125A | 5/8" EYEBOLT | 150KV |
| 15KV | 125A | 2 HOLE SPADE | 95KV | 25KV | 125A | 5/8" EYEBOLT | 150KV | 30/34 KV | 125A | 1 HOLE SPADE | 150KV |
| 15KV | 208A | 5/8" EYEBOLT | 95KV | 25KV | 55A | 1 HOLE SPADE | 150KV | 30/34 KV | 125A | 2 HOLE SPADE | 150KV |
| 15KV | 208A | 2 HOLE SPADE | 95KV | 25KV | 75A | 1 HOLE SPADE | 150KV | 30/34 KV | 125A | 2 HOLE SPADE | 150KV |
| 15KV | 208A | 4 HOLE SPADE, 3/8" THICK | 95KV | 25KV | 125A | 1 HOLE SPADE | 150KV | 30/34 KV | 125A | 7/16" EYEBOLT | 150KV |
| 15KV | 208A | 6 HOLE SPADE, 3/8" THICK | 95KV | 25KV | 125A | 2 HOLE SPADE | 150KV | 30/34 KV | 125A | 2 HOLE SPADE | 150KV |
| 15KV | 208A | 8 HOLE SPADE, 3/8" THICK | 95KV | 25KV | 208A | 2 HOLE SPADE | 150KV | 30/34 KV | 208A | 2 HOLE SPADE | 150KV |
| 15KV | 600A | 6 HOLE SPADE, 3/8" THICK | 95KV | 25KV | 417A | 2 HOLE SPADE | 150KV | 30/34 KV | 208A | 1 HOLE SPADE | 150KV |
| 15KV | 1600A | SPADE CONNECTOR | 110KV | 25KV | 55A | 11/32" EYEBOLT | 150KV | 30/34 KV | 208A | 2 HOLE SPADE | 150KV |
| 15KV | 500A | SPADE CONNECTOR | 95KV | 25KV | 75A | 11/32" EYEBOLT | 150KV | 34.5KV | 800A | #2 SOL - 1000 MCM | 200KV |
| 15KV | 250A | SPADE CONNECTOR | 95KV | 25KV | 100A | 11/32" EYEBOLT | 150KV | 34.5KV | 417A | 15/16" EYEBOLT | 200KV |
| 18KV | 55A | 11/32" EYEBOLT | 125KV | 25KV | 55A | 7/16" EYEBOLT | 150KV | 34.5KV | 250A | 15/16" EYEBOLT | 200KV |
| 18KV | 75A | 11/32" EYEBOLT | 125KV | 25KV | 75A | 7/16" EYEBOLT | 150KV | 34.5KV | 800A | 1 1/8" TERMINAL POST | 200KV |
| 18KV | 100A | 11/32" EYEBOLT | 125KV | 25KV | 100A | 7/16" EYEBOLT | 150KV | 34.5KV | 250A | 2 HOLE SPADE 3/8" THICK | 200KV |
| 18KV | 130A | 11/32" EYEBOLT | 125KV | 25KV | 125A | 7/16" EYEBOLT | 150KV | 34.5KV | 800A | 4 HOLE SPADE 3/8" THICK | 200KV |
| 18KV | 30A | 11/32" EYEBOLT | 125KV | 25KV | 55A | 5/8" EYEBOLT | 150KV | ANSI HV Bushing | |||
| 18KV | 55A | 7/16" EYEBOLT | 125KV | 25KV | 75A | 5/8" EYEBOLT | 150KV | ||||
Product Description
Precision Insulation Solutions for Power Transformers
The ANSI Spade Type Porcelain Bushings are engineered for electrical engineers and procurement specialists who require dependable ANSI bushing components compliant with national voltage standards. Designed primarily for high voltage electrical circuits, these bushings serve as critical insulation interfaces in power transformer bushings where safety, longevity, and compatibility are priorities. Serving OEMs and maintenance professionals, they enable consistent performance in medium to high voltage transformer assemblies, offering seamless integration with common connector types used across various power distribution settings.
Technical Construction and Performance Specifications
Built from high-purity wet-process porcelain finished with a light gray glaze, these bushings are rated for voltages between 15 kV and 27 kV and current capacities up to 50 A. Their profiles include cylindrical, conical, and straight designs with internal and external configurations, supporting single-piece lengths of up to 2800 mm. The materials and manufacturing precision provide excellent mechanical strength, resisting internal pressure and cantilever load stresses common in high voltage bushing environments. Compliant with ANSI standards, this product line offers repeatable dimensional precision and performance reliability, critical for reducing downtime and ensuring sustained electrical isolation.
Application Versatility and Integration in Electrical Networks
These bushings are widely used in medium-to-high voltage transformer bushing installations across power generation, grid distribution, and transformer refurbishment sectors. Their compatibility with a variety of connector types, including spade and eyebolt terminals, ensures flexible integration into existing transformer infrastructure. This adaptability combined with their robust construction minimizes maintenance demands and enhances operational uptime. As part of a comprehensive portfolio offered by established transformer bushing manufacturers, these bushings meet rigorous industry demands, facilitating standardized yet custom solutions suited for complex electrical network configurations.
Product Advantages
Optimized Structural Design for Enhanced System Compatibility
The ANSI Spade Type Porcelain Bushings feature a robust design based on extensive engineering validation to withstand mechanical stresses inherent to transformer environments. Their modular profile options and available lengths up to 2800 mm facilitate tailored system integration, critical for varied transformer architectures. This product aligns with transformer bushing suppliers’ commitment to adaptable, high-quality insulating solutions that comply fully with ANSI standards, ensuring straightforward integration into power transformer systems without compromising mechanical resilience or electrical isolation properties.
Reliable Performance and Simplified Maintenance for End Users
These bushings deliver consistent electrical insulation performance, reducing failure risks associated with mechanical or electrical stresses. The superior wet-process porcelain construction guarantees durability under load, ensuring long service intervals and minimizing user intervention. The availability of multiple connector configurations enhances installation ease for engineering teams, thus lowering labor costs and downtime. As standardized but customizable solutions, these power transformer bushings provide reliable, cost-effective support for transformer operation and maintenance programs.
Use Scenarios
High Voltage Transformer Retrofit and Refurbishment Projects
In power grid upgrade or transformer replacement initiatives, electrical contractors and utilities often require robust, standards-compliant bushings to ensure system reliability and safety. The ANSI Spade Type Porcelain Bushings fulfill this need by offering durable insulation performance at 15–27 kV and adaptable lengths accommodating retrofit specifications. Their compatibility with spade and eyebolt connectors facilitates substitution in existing assemblies with minimal system modifications. This ensures compliance with present high voltage bushing standards while optimizing transformer refurbishment workflows and extending asset lifecycles within utility operations.
Integration in Medium Voltage Power Distribution Networks
Distribution system engineers depend on reliable transformer bushing components during network expansions or new substation installations. These porcelain bushings serve as critical insulation interfaces between the transformer and external connections, ensuring stable electrical performance under mechanical stress and environmental factors. The product’s ANSI compliance and versatile profile selections support diverse distribution transformer designs and configurations. Their engineered properties enable seamless incorporation into workflow protocols emphasizing safety, efficiency, and operational predictability in medium voltage electrical systems.
FAQ
What materials are used in your ANSI Spade Type Porcelain Bushings?
We manufacture our ANSI Spade Type Porcelain Bushings using premium wet-process porcelain finished with a light gray glaze. This material ensures excellent electrical insulation and mechanical strength, suitable for 15–27 kV voltage and 50 A current ratings, guaranteeing reliable performance in your high voltage systems.
Can the ANSI bushings be customized for different transformer designs?
Yes, we offer customization with bushing profiles including cylindrical, conical, or straight shapes, and lengths up to 2800 mm. Our bushings support multiple connector types, such as eyebolts and spade terminals, to integrate smoothly with your ANSI transformer bushing requirements.
What installation considerations should I be aware of for these bushings?
Our ANSI Spade Type Porcelain Bushings are designed to resist mechanical stresses like internal pressure and cantilever loads. Proper installation involves matching the bushing profile and connector type to your transformer assembly to maintain insulation integrity and ensure optimal performance in electrical grids.
How do you ensure the quality and compliance of your transformer bushings?
We strictly manufacture all products according to ANSI, IEC, and client-specific standards. Our production process employs wet-process porcelain with precise glazing to meet durability and electrical specifications, making our transformer bushing a trusted choice for critical power distribution infrastructure.

