Introduction
This manual provides essential instructions for the safe and effective installation and use of the Burndy YAD4CM8E516 One-Hole Compression Lug. This product is designed for reliable electrical connections in various industrial and scientific applications. Please read this manual thoroughly before proceeding with installation.
Safety Information
WARNING: Electrical work should only be performed by qualified personnel. Failure to follow these safety guidelines can result in serious injury or death.
- Always disconnect power before installing or servicing electrical components.
- Use appropriate personal protective equipment (PPE), including insulated gloves and eye protection.
- Ensure all tools used are insulated and in good working condition.
- Verify that the lug and wire gauge are compatible with the application's current and voltage requirements.
- Inspect the lug for any damage before installation. Do not use damaged components.
- Follow all local and national electrical codes.
Product Overview
The Burndy YAD4CM8E516 is a one-hole compression lug designed for 4 AWG copper conductors. It features a robust copper construction for excellent conductivity and corrosion resistance, ensuring a durable and secure electrical connection. The lug is designed for crimping onto the conductor and provides a ring terminal for bolt-on connections.

Figure 1: A close-up view of the Burndy YAD4CM8E516 one-hole compression lug, showing its copper construction, barrel for wire insertion, and ring terminal for bolt connection.
Installation (Setup & Operating)
Follow these steps for proper installation of the Burndy YAD4CM8E516 compression lug:
- Prepare the Conductor: Strip the insulation from the 4 AWG copper wire to the length specified by the lug manufacturer or crimping tool instructions. Ensure the conductor strands are clean and free of oxidation.
- Insert the Conductor: Insert the stripped conductor fully into the barrel of the compression lug until it bottoms out. Ensure no stray strands are outside the barrel.
- Crimping: Using a compatible crimping tool (e.g., a hydraulic or mechanical crimper designed for 4 AWG copper lugs), perform the required number of crimps according to the tool manufacturer's instructions. Ensure the crimps are properly formed and secure.
- Inspect the Crimp: After crimping, visually inspect the connection. The crimp should be uniform and tight, with no loose strands or signs of damage to the lug or conductor.
- Secure the Lug: Attach the ring terminal of the lug to the connection point using an appropriately sized bolt, washer, and nut. Tighten the fastener to the recommended torque specifications to ensure a secure electrical and mechanical connection.
- Insulate (if necessary): If required by the application, apply appropriate insulation (e.g., heat shrink tubing or electrical tape) over the crimped connection to prevent accidental contact.
Specifications
| Specification | Detail |
|---|---|
| Brand | Burndy |
| Model Number | YAD4CM8E516 |
| Conductor Size | 4 AWG |
| Connector Type | One-Hole Compression Ring Terminal |
| Material | Copper |
| Manufacturer | BURNDY |
Maintenance
Burndy compression lugs are designed for long-term reliability with minimal maintenance. However, periodic inspection of electrical connections is recommended, especially in critical applications or harsh environments.
- Visual Inspection: Regularly check connections for signs of corrosion, discoloration, or physical damage.
- Tightness Check: Ensure all bolted connections remain tight. Re-torque fasteners to manufacturer specifications if necessary, ensuring power is disconnected first.
- Cleaning: If necessary, clean the connection points using appropriate electrical contact cleaner, ensuring power is disconnected.
Troubleshooting
If issues arise with an electrical connection utilizing this lug, consider the following common troubleshooting steps:
- Poor Connection/High Resistance: This can be caused by improper crimping, incorrect wire gauge, or loose bolted connections. Re-inspect the crimp and ensure the bolt is torqued correctly. Verify wire gauge compatibility.
- Overheating: Overheating at the connection point often indicates high resistance. This could be due to an undersized lug for the current, poor crimp quality, or a loose connection. Disconnect power and thoroughly inspect the installation.
- Corrosion: Ensure connections are made in a clean, dry environment. For outdoor or harsh environments, consider additional protective measures like sealing compounds or weatherproof enclosures.
If problems persist, consult a qualified electrician or contact Burndy technical support.
Warranty and Support
For specific warranty information regarding the Burndy YAD4CM8E516 One-Hole Compression Lug, please refer to the official Burndy website or contact Burndy customer service directly. Support for product inquiries, technical assistance, or warranty claims can be obtained through their official channels.
Manufacturer: BURNDY
Website: www.burndy.com (Please check the official website for the most current contact information and support resources.)





