The Cembre MK20-3D, manufacturer part number 2634786, is a precision-engineered hexagonal crimping die set designed for producing professional compression terminations on copper cable lugs and connectors. Developed for use with the Cembre ECW-H3D 230 kN hydraulic crimping head, it delivers accurate, repeatable crimping performance for demanding industrial, utility and infrastructure applications.
Manufactured from special hardened steel with a burnished surface finish, the MK20-3D provides exceptional durability and long service life. Its precision-machined 20 mm hexagonal crimp profile ensures dependable mechanical strength and excellent electrical conductivity when used with compatible Cembre compression connectors.
Designed for 120 mm² copper conductors in accordance with DIN compression standards, the MK20-3D is widely used by electrical contractors, switchgear manufacturers, utilities and industrial maintenance engineers who require consistent, high-quality cable terminations.
Key Advantages
Professional hexagonal crimping die set.
20 mm hexagonal crimp profile.
Suitable for 120 mm² copper conductors.
Compatible with the Cembre ECW-H3D 230 kN hydraulic crimping system.
Manufactured from special hardened steel with burnished finish.
Provides accurate, repeatable compression for professional cable terminations.
Key Features
Cembre MK20-3D die set.
Manufacturer Part Number: 2634786.
Hexagonal crimp geometry.
Impression marking: K20.
Designed for 120 mm² copper conductors.
Compatible with ECW-H3D hydraulic crimping equipment.
Precision-machined hardened steel construction.
Professional-grade tooling for repetitive industrial use.
Reliable Hexagonal Cable Compression
Hexagonal crimping dies are designed to apply uniform compression around compatible cable lugs and connectors, producing strong mechanical retention and low-resistance electrical connections. Precision die geometry helps ensure consistent installation quality across demanding industrial environments.
When paired with compatible Cembre hydraulic crimping equipment and approved compression connectors, the MK20-3D provides dependable crimp quality for power distribution, industrial manufacturing, switchgear assembly and utility cable installations.
Typical Applications
Industrial electrical installations.
Power distribution systems.
Switchgear and panel building.
Utility cable termination.
Renewable energy installations.
OEM equipment manufacture.
Technical Specifications
Series
MK-3D
Manufacturer Part Number
2634786
Product type
Hexagonal crimping die set
Crimping geometry
Hexagonal
Conductor size
120 mm²
Impression marking
K20
Material
Special hardened steel
Surface treatment
Burnished
Dimensions
Approx. 59.7 × 59.7 × 41 mm
Impression width
Approx. 12 mm
Compatible equipment
Cembre ECW-H3D 230 kN hydraulic crimping head
Pack quantity
1 set
HS Code
82079099
Country of Manufacture
Italy
Frequently Asked Questions
What is the Cembre MK20-3D used for?
The MK20-3D is a hexagonal crimping die set used to crimp compatible copper compression connectors using the Cembre ECW-H3D hydraulic crimping system.
What conductor size is this die designed for?
The MK20-3D is designed for 120 mm² copper conductors.
Which crimping system is it compatible with?
The die set is designed specifically for the Cembre ECW-H3D 230 kN hydraulic crimping head.
What material is the die manufactured from?
The MK20-3D is manufactured from special hardened steel with a burnished finish for durability and consistent crimp quality.
Can this die be used with any hydraulic crimping tool?
No. It should only be used with compatible Cembre hydraulic crimping equipment and approved matching compression connectors.
Trusted by Electrical Professionals Worldwide
Cembre crimping dies are trusted by electrical contractors, utilities, OEMs and industrial engineers for producing accurate, repeatable and dependable compression terminations across demanding electrical applications.
Series
MK-3D
Manufacturer Part Number
2634786
Product type
Hexagonal crimping die set
Crimping geometry
Hexagonal
Conductor size
120 mm²
Impression marking
K20
Material
Special hardened steel
Surface treatment
Burnished
Dimensions
Approx. 59.7 × 59.7 × 41 mm
Impression width
Approx. 12 mm
Compatible equipment
Cembre ECW-H3D 230 kN hydraulic crimping head
Pack quantity
1 set
HS Code
82079099
Country of Manufacture
Italy
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...