Understanding the Different Types of Cable Piercing Connector

SLEP street light piercing connetor

Cable piercing connector, also known as insulation piercing clamp or insulation piercing connector (IPC), are essential for creating safe, efficient electrical connections without stripping insulation. These devices come in various types to suit different applications, voltages, and functional requirements.

This article breaks down the key categories of insulation piercing connectors.

1. By Voltage Rating

IPC clamps are classified based on their maximum current-carrying capacity and voltage compatibility:

1kV IPCs: Ideal for low-voltage residential and commercial systems (e.g., home wiring, street lighting).

10kV IPCs: Designed for medium-voltage power distribution networks.

20kV IPCs: Used in high-voltage industrial grids and renewable energy systems.

2. By Function

Specialized cable piercing connectors address unique safety and operational needs:

Fire-Resistant insulation piercing connectors: Withstand extreme heat, perfect for buildings requiring enhanced fire safety.

fire-retardant insulation piercing connector
fire-retardant insulation piercing connector

Lightning/Arc-Resistant insulation piercing connectors: Protect systems from surges in areas prone to storms or electrical faults.

Electrical Grounding cable piercing connectors: Ensure safe grounding in circuits to prevent shocks or equipment damage.

Standard IPC connectors: General-purpose connectors for everyday electrical distribution.

3. By Phase & Branching Capacity

Single-Phase cable piercing connector: Basic connectors for single-phase circuits.

Fused Single-Phase insulation piercing connectors: Include built-in fuse holders for overload protection.

Multi-Tap IPCs (4–5 branches): Enable multiple connections from a single main cable, ideal for complex networks.

4. By Screw Design

The number of screws determines mechanical strength and use cases:

Single-Screw IPCs

Single-Screw Insulation Piercing connector SL4-150
Single-Screw Insulation Piercing

Compact size with one bolt/nut.

Quick installation for low-voltage overhead lines.

Common in residential and small-scale projects.

Double-Screw cable piercing connector

double-screw 10kv insulation piercing connector
Double-screw insulation piercing connector

Larger, dual-bolt design for higher mechanical stability.

Even torque distribution ensures reliable connections in medium/high-voltage systems.

Note: Both screws must be the same size to avoid uneven pressure.

5. Custom OEM Solutions

Beyond standard models, WZUMER offers tailored IPCs to meet unique specifications:

Adjustable voltage ratings, sizes, or materials (e.g., enhanced corrosion resistance).

Branding and packaging customization for distributors.

Why Choose WZUMER?

✅ Wide Range – From 1kV to 20kV IPCs, including fire-resistant.

✅ Quality Assurance – Rigorously tested for durability, waterproofing, and electrical safety.

✅ Customization – OEM/ODM services to align with your project needs.

✅ Expert Support – Technical guidance for installation and product selection.

Conclusion

Understanding the types of cable piercing connector helps you select the right solution for voltage requirements, environmental conditions, and system complexity. Whether you need single-screw IPCs for simple branch connections or custom-designed clamps for industrial grids, WZUMER delivers reliable, cost-effective options.

Need specialized IPCs? Contact WZUMER today for bulk orders and custom solutions!

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