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Insulation Piercing Connector (IPC)
Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd.

TTD Series Insulation Piercing Connector

JUNW TTD Series Insulation Piercing Connectors (IPCs)
1.Core Product Advantages 
JUNW TTD Series Insulation Piercing Connectors are premium low-voltage distribution connection solutions, featuring custom torque nut matching and scalable single/dual-bolt housing designs for differentiated application scenarios. Key competitive strengths:
•Stripping-Free, Live-Line Installation: No cable stripping required, fully compatible with copper/aluminum (Cu/Al) cables, enabling fast, error-free hot-line tapping without damaging conductors.
•Precision Torque Control: Each model pairs with dedicated torque nuts (F1309/F1314/F1318/F1720/F1725/F1737) to deliver consistent, reliable piercing pressure, eliminating human installation error.
•Harsh Environment Durability: Self-sealed housing provides waterproof, UV-resistant, anti-corrosion performance, with 6kV insulation strength and 15kA impulse current capacity, ideal for outdoor grid and industrial sites.
•Cost & Space Efficiency: Eliminates terminal boxes, junction boxes and cable return lines, cutting construction time and material costs, perfect for smart grid retrofits, building distribution and renewable energy projects.

2.Model-Specific Differentiation (Grouped by Application)
•Entry-Level Small-Load (86A Max, 1×M8, F1309 Torque Nut):
oTTD041FV0: 6–35mm² main / 1.5–10mm² branch, compact single-bolt design, tailored for residential and light commercial small-load tapping.
oTTD051FV0: 16–95mm² main / 1.5–10mm² branch, single-bolt structure, suited for medium main-line small-branch commercial distribution.
•Mid-Range Versatile (200A Max, 1×M8, F1309/F1314):
oTTD101FV0: 6–50mm² main / 2.5(6)–35mm² branch, small-to-medium section, ideal for residential and commercial flexible tapping.
oTTD151FV0: 25–95mm² main / 2.5(6)–35mm² branch, medium main-line, for commercial and light industrial applications.
oTTD281FV0: 50–185mm² main / 2.5(6)–35mm² branch, large main-line small-branch, for grid trunk line tapping.
•Mid-High Current Single-Bolt (377A Max, 1×M8, F1314/F1318):
oTTD201FV0: 35–95mm² main / 25–95mm² branch, equal/medium section, for commercial and industrial medium-load branching.
oTTD251FV0: 50–150mm² main / 25–95mm² branch, large main-line medium-branch, for grid and industrial distribution.
oTTD271FV0: 35–120mm² main / 35–120mm² branch, equal-section, for industrial and grid equal-diameter cable connection.
•Heavy-Duty Dual-Bolt High-Current (504A–679A Max, 2×M8/M10):
oTTD401FV0: 50–185mm² main / 50–150mm² branch, 2×M8, 504A, dual-bolt for large-section industrial/grid connections.
oTTD431FV0: 70–240mm² main / 16–95mm² branch, 2×M10 (17mm height), 377A, for large main-line grid tapping.
oTTD441FV0: 95–240mm² main / 50–150mm² branch, 2×M10, 504A, dual-bolt for high-current industrial/grid.
oTTD451FV0: 95–240mm² main / 95–240mm² branch, 2×M10, 530A, equal-section heavy-duty for extreme industrial/grid.
oTTD551FV0: 120–400mm² main / 95–240mm² branch, 2×M10, 679A, maximum-spec dual-bolt for ultra-large grid/industrial trunk lines.

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Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd. upholds the core values of quality, innovation and integrity. Over the past 19 years, these principles have enabled us to grow into a leading manufacturing and trading enterprise and drive our commitment to delivering outstanding products.
Since the company’s founding, Zhang Shuping, founder of Junwei Electric, has always emphasized: “If people and enterprises in French-speaking African countries need electricity, they need the products and services we provide. Whether for new or existing demand, we wholeheartedly supply them with the products and services they require.” Providing customers with high-quality products supported by professionally skilled staff is the mission and passion of the Junwei Electric family.
Zhejiang Junwei Electric Co., Ltd. specializes in providing integrated solutions. Since 2007, Junwei Electric has kept a simple promise: to offer the most reliable products, the most reliable team and the most reliable services at the most competitive prices. With abundant inventory and a strong supplier network, Junwei is committed to delivering a hassle-free experience for customers. All products are certified for safety and reliability, ready for immediate operation.
Quality, Innovation, Integrity – Your Trusted Electrical Partner
We focus on the R&D and production of high and low voltage electrical products, including circuit breakers, meter boxes and fuses. Our products are exported to many African countries such as Cameroon, Côte d’Ivoire, Morocco and Burkina Faso. We have also established long-term and stable cooperative relations with power authorities in Senegal, Gabon, Benin, Guinea and other countries, serving as their important supplier of low-voltage electrical products in China.
We have a professional R&D team and laboratory, dedicated to product innovation and technological upgrading. We firmly believe that progress stems from demand, curiosity and the pursuit of excellence. Therefore, all finished products undergo multiple strict inspections to ensure stable and reliable performance.
We do not merely sell products – we deliver peace of mind. With a complete after-sales service system and efficient supply chain management, we have won the long-term trust of overseas customers. Our promise is simple: to provide safe, durable and economical electrical solutions with our professional expertise and attentive service.
Our persistence in quality has earned us an excellent reputation.
Innovation is our driving force, and reliability is our promise.
All our production and quality management systems meet or exceed CE and ISO standards. The products you receive are certified, safe and reliable, and can be installed and used directly.
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