Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
BURNDY U321 Replacement Crimping Die Set, 12 Ton, 336.4 kcmil Aluminum - Burndy Replacement Crimping Dies
BURNDYBurndy Replacement Crimping Dies

BURNDY U321 Replacement Crimping Die Set, 12 Ton, 336.4 kcmil Aluminum

The BURNDY Upper and Lower Crimping Die (SKU U321, MPN U321) is a replacement crimping die set designed for use with the Y35 tool and YDS-AT die system. It accommodates a single size: 336.4 kcmil aluminum lug, with a…

SKU 3G-OTH-252837

Also listed as: U 321 · U-321

Brand
BURNDY
Item
U321 Replacement Crimping Die Set, 12 Ton, 336.4 kcmil Aluminum
Part Number
U321
Category
Burndy Replacement Crimping Dies
Available to Order
Also known as:U321BURNDY
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BURNDY
Manufacturer Part Number
U321
Type
12 ton Max Crimping Force
Sizes
1

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BURNDY Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BURNDY Upper and Lower Crimping Die (SKU U321, MPN U321) is a replacement crimping die set designed for use with the Y35 tool and YDS-AT die system. It accommodates a single size: 336.4 kcmil aluminum lug, with a maximum crimping force of 12 tons. This die is constructed from aluminum and is manufactured by BURNDY.

Frequently Asked Questions

What is the BURNDY U321 crimping die used for?

The BURNDY U321 upper and lower crimping die is used to crimp 336.4 kcmil aluminum lugs. It is a replacement die set for the Y35 tool and YDS-AT die system, with a maximum crimping force of 12 tons. It is commonly applied in electrical utility, industrial, and commercial power installations.

What are the specifications of the BURNDY U321 crimping die?

The BURNDY U321 die set accommodates one size: 336.4 kcmil aluminum lug. It is made of aluminum, works with the Y35 tool and YDS-AT die system, and has a maximum crimping force of 12 tons. The manufacturer part number is U321, and the SKU is 3G-OTH-252837.

Where to buy BURNDY U321 crimping dies worldwide?

You can source the BURNDY U321 crimping die from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we supply genuine BURNDY replacement dies for your Y35 tool.

How to select the correct BURNDY crimping die for a Y35 tool?

To select the correct die, match the die part number to your lug size and tool. The BURNDY U321 is designed for 336.4 kcmil aluminum lugs and the Y35 tool with YDS-AT system. Always verify the lug material and size against the die's specifications to ensure proper crimp quality and force.

Used in

Common applications for BURNDY
Power distribution panelboards — BURNDY KA31U mechanical panelboard lugs for 6 AWG to 350 kcmil copper conductors
Grounding electrode systems — BURNDY C5 bronze pipe ground clamps for bonding water pipes to grounding conductors
Transformer connections — BURNDY QA1CB straight mechanical lugs for 4 AWG to 1 AWG copper wire terminations
Industrial control cabinets — BURNDY KLU25 offset-tongue lugs for 14 AWG to 10 AWG wire connections on #6 studs
Multitap splicing in junction boxes — BURNDY BIBD60010 aluminum multitap connector for 4 AWG to 600 kcmil conductors
Crimping copper lugs in switchgear — BURNDY UO replacement dies with Y35 head for 6 to 2 AWG copper lugs
Not sure this is the right part? Photo-identify it

BURNDY Products

3G Electric supplies BURNDY burndy replacement crimping dies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BURNDY

View all BURNDY parts
Replacement die set for crimping 2 AWG copper lugs. Compatible with YA and YS series tooling, including the PAT750 tool. Delivers 12-ton maximum crimping force. Brown color identifier
BURNDY
Replacement die set for crimping 2 AWG copper lugs. Compatible with YA and YS series tooling, including the PAT750 tool. Delivers 12-ton maximum crimping force. Brown color identifier
Replacement die set for crimping 1/0 AWG copper lugs. Part of the YA/YS series with a maximum crimping force of 12 tons. Compatible with Y750 tool. Includes upper and lower dies for one size
BURNDY
Replacement die set for crimping 1/0 AWG copper lugs. Part of the YA/YS series with a maximum crimping force of 12 tons. Compatible with Y750 tool. Includes upper and lower dies for one size

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first