Integrity is the cornerstone and professionalism is the guarantee. We are unswervingly determined to continuously improve our 95 sq mm cable joint kit and become the industry benchmark. A complete quality management system ensures transformer fuse cutout's high-quality reputation. We are always user-centered, listen to needs, develop deep technology, constantly optimize products, and win the recognition and trust of customers. Relying on leading technology and excellent team, we control quality from the source. In the future, we will continue to broaden our international horizons, build our own brands, and promote domestic manufacturing to go global. With "Quality Wins" as our strategy, we are committed to synchronous development, devoting ourselves to the research and development of innovative technologies and products that meet customer needs, and staying at the forefront of the industry. Your opinions and suggestions are our precious wealth. With your company and support, we will continue to surpass ourselves and achieve greater success!
FAQ
Do You Provide Customized Services?

Yes, we provide customized services to meet your specific needs. As a professional Electric Power Fittings manufacturer, we offer tailored solutions including custom designs, material selection, sizes, and operational features.

What Is Your R&D Capability?

Our R&D capability is supported by full industry chain management, ensuring control from raw materials to product design and processing. We deliver high-quality Electric Power Fittings Products, and tailored solutions to meet customer needs.

How Is The Quality Of Your Electric Power Fittings?

SUNJ has an ISO9001-certified quality management system and an ISO14001-certified environmental management system! Our products has passed IEC 61238, IEC 61284, NFC 33042 standard certification. Our products deliver consistent performance you can trust.

What Electric Power Fittings Solutions Does Your Company Provide?

SUNJ offers a wide range of solutions, including aerial overhead line fittings, ABC accessories, polymer insulators, lightning Arresters, Drop-out Fuse Cutouts, Disconnect Switch, Auto-iRecloser, SF6 Gas Circuit Breaker. Designed for reliability and performance, our products support power transmission, equipment protection, and grid automation.

Why Choose SUNJ?
Comprehensive Whole-Industry Chain Management
We adhere to a fully traceable industry chain model, managing and monitoring every step from raw materials to final processing. This ensures consistent quality, reliability, and transparency in all our products.
Reliable Power Transmission and Distribution Solutions
At SUNJ, we offer high-performance solutions for power transmission and distribution. Our product range includes Aerial Overhead Line Fittings, ABC Accessories, Polymer Insulators, Lightning Arresters, Fuse Cutouts, Disconnect Switches, Auto-Reclosers, and SF6 Gas Circuit Breakers. Designed for durability and precision, our products ensure efficient power flow, equipment protection, and grid automation.
Strict Quality Control for Superior Electric Power Fittings
At SUNJ, we ensure superior quality management by implementing strict controls across every stage, from material sourcing to final inspection. Strictly following ISO 9001 quality management system and ISO 14001 environmental management system standards, our Electric Power Fittings have unparalleled durability, reliability, and performance.
Trusted Electric Power Fittings Partner
With over 15 years of experience, SUNJ is a global leader in power fittings solutions. Serving 80+ countries with 32+ utility approvals and 800+ successful projects, we ensure ISO 9001 and ISO 14001 certified quality and reliability for every product.
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