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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. is built on the core values of quality, innovation, and integrity. Over the past 19 years, these principles have guided our growth into a manufacturing and trading enterprise committed to delivering dependable products.

If people and businesses in French-speaking African countries have their lights on, they are going to need what we offer. We will be here to provide the products and services they need, new or old", said Shuping Zhang, the founder of Junwei Electric. It is our mission and passion to provide customers with a quality product from a staff with the expertise to back it up.

Zhejiang Junwei Electric Co., Ltd specializes in solutions. Since 2007, Junwei Electric has made a commitment to our customers that is simple: reliable products, reliable people and reliable services with high value and suitable prices. With ample inventory and a strong supplier network, Junwei is dedicated to delivering a smooth experience. All products are safety-certified and ready for use.

We specialize in the R&D and manufacturing of high- and low-voltage electrical products, including circuit breakers, meter boxes, and fuses. Our products are exported to Cameroon, Côte d'Ivoire, Morocco, Burkina Faso, and other African countries. We have also built long-term, stable partnerships with power authorities in Senegal, Gabon, Benin, and Guinea, serving as a key supplier of TTD Series Insulation Piercing Connector products in China for these markets.

We have a dedicated R&D team and laboratory focused on product innovation and technical improvement. We believe that progress comes from real-world needs, curiosity, and a commitment to continuous refinement. All finished products pass multiple rounds of inspection to ensure consistent performance and reliability.

We are not just a Low Voltage Insulation Piercing Connector factory , but a partner in reliable electrical solutions. Supported by a comprehensive after-sales service system and efficient supply chain management, we have earned the long-term trust of our overseas customers. Our commitment is simple: provide safe, durable and cost-effective electrical solutions, bolstered by our expertise and care.

Our reputation has been earned through a steady focus on quality. Innovation drives us forward; reliability is what we stand by. All of our production and quality management systems meet or exceed CE and ISO standards. The products you receive are certified, safe, and ready for installation.

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