sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Product Overview
The BURNDY® U251 is a heavy-duty stainless steel compression U-die designed for installing copper C-taps (Copper CRIMPIT™). Color-keyed red with a die index of 251, this precision-engineered die ensures consistent and reliable connections for industrial electrical and utility applications.
Key Specifications
- Die Type: U-Die
- Material: Stainless Steel
- Color Code: Red
- Die Index: 251
Wire Capacity (Copper C-Taps)
- Main Wire: 250 kcmil – 2 AWG
- Tap One: 2 – 6 AWG
- Tap Two: 8 – 14 AWG
Tool Compatibility
The U251 die is designed to seamlessly integrate with standard professional compression tools:
- Direct Fit: BURNDY Y35, Y750, and PAT750 series tools.
- Adapter Required (PUADP1): BURNDY Y46 and PAT46 series tools (adapter sold separately).
Frequently Asked Questions
Q: Which crimping tools are directly compatible with the BURNDY U251 die?
A: The U251 die directly fits BURNDY Y35, Y750, and PAT750 series compression tools.
Q: Can I use this die with a BURNDY Y46 or PAT46 tool?
A: Yes, it can be used with BURNDY Y46 and PAT46 tools when paired with the PUADP1 die adapter (sold separately).
Q: What wire ranges does this die support when installing copper C-taps?
A: It accommodates a main wire range of 250 kcmil to 2 AWG, a first tap of 2 to 6 AWG, and a second tap of 8 to 14 AWG.

