sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Product Overview
The BURNDY UN is a stainless steel radial non-butting twin U-die designed for professional crimping applications. Color-keyed RED with a die index of N, this compression die is engineered to accurately install BURNDY H-Tap and T-Tap line tap connectors. It ensures a highly consistent 12-ton crimp on 477 kcmil ACSR and 500 kcmil stranded aluminum wire, conforming to required dimensional tolerances for electrical terminations.
Technical Specifications
- Die Type: U-Die (Twin, Non-Butting, Radial)
- Material: Stainless Steel
- Color Code: Red
- Die Index: N
- Conductor Capacity: 477 kcmil ACSR, 500 kcmil Stranded Aluminum
- Crimp Force Rating: 12 Tons
Tool Compatibility
This U-die directly fits the following BURNDY hydraulic crimper families without an adapter:
- Y35 Series
- Y39 Series
- Y750 Series
- PAT750 Series
It is also fully compatible with BURNDY Y46 and PAT46 series tools when paired with the PUADP1 die adapter.
Frequently Asked Questions
Q: Do I need an adapter to use this die in a BURNDY PAT750 crimper?
A: No, the UN U-die installs directly into Y35, Y39, Y750, and PAT750 series crimpers. An adapter (PUADP1) is only required if you are using Y46 or PAT46 series tools.
Q: What types of wire is this compression die rated for?
A: This RED, Index N die is specifically designed to install H-Tap and T-Tap connectors onto 477 kcmil ACSR and 500 kcmil stranded aluminum conductors.

