Why Choose the Cembre 2146020 GKY-U3.5 Reinforced Insulated Fork Terminal?
The Cembre 2146020 GKY-U3.5 is a premium yellow reinforced insulated fork (spade) terminal engineered to provide secure, vibration-resistant electrical terminations for industrial control panels, switchgear, machinery and OEM equipment. Manufactured by Cembre, this professional-grade fork terminal is designed for demanding applications where reliable electrical performance and mechanical durability are essential.
Manufactured from tin-plated electrolytic copper with a durable halogen-free PA6.6 insulated sleeve, the GKY-U3.5 delivers excellent electrical conductivity, corrosion resistance and long service life. Its reinforced anti-vibration copper sleeve becomes part of the crimp during installation, creating a highly secure electrical and mechanical connection even in environments subjected to continuous vibration and movement.
Designed for 4–6 mm² conductors and featuring a 3.7 mm fork opening, the Cembre 2146020 enables rapid installation and removal without completely removing the fixing screw, making it ideal for maintenance applications and professional electrical installations.
Key Advantages
Professional reinforced insulated fork (spade) terminal.
Excellent resistance to corrosion and mechanical stress.
Ideal for industrial control and automation systems.
Key Features
Manufacturer: Cembre.
Model: GKY-U3.5.
Manufacturer Part Number: 2146020.
Yellow reinforced insulated fork terminal.
Fork (spade) connection design.
Electrolytic copper body with tin-plated finish.
Funnel-shaped reinforced copper sleeve.
Halogen-free PA6.6 insulation.
Designed for vibration-resistant installations.
Suitable for professional industrial wiring.
Reliable Electrical Connections for Industrial Applications
Reinforced insulated fork terminals provide dependable low-resistance electrical connections while improving resistance to vibration and continuous mechanical stress. Their fork design allows conductors to be installed or removed without fully removing the fixing screw, reducing maintenance time and simplifying servicing.
The Cembre KY reinforced terminal series has been developed specifically for demanding industrial environments. The reinforced copper sleeve improves the mechanical integrity of every crimp while the halogen-free insulation simplifies conductor insertion and helps deliver long-term electrical reliability.
Typical Applications
Industrial control panels.
Electrical switchgear.
Machine building.
Factory automation systems.
OEM equipment.
Motor control centres.
Industrial maintenance.
General electrical installations.
Technical Specifications
Part Number
2146020
Alternative Part Number
GKY-U3.5
Product type
Reinforced insulated fork terminal
Terminal style
Fork (spade) terminal
Conductor size
4–6 mm²
Fork opening / Stud size
3.7 mm
Fork width
7.2 mm
Barrel to fork centre
7.5 mm
Centre to fork tip
3.9 mm
Overall length
24.4 mm
Entry diameter
7 mm
Conductor material
Tin-plated electrolytic copper
Insulation material
Halogen-free PA6.6
Insulation colour
Yellow
Operating temperature
-20 °C to +105 °C (110 °C short-term)
Vibration resistant
Yes
Pack quantity
100 pieces
HS Code
85369010
Country of Manufacture
Taiwan
Frequently Asked Questions
What is the Cembre 2146020 GKY-U3.5 used for?
It provides secure fork-style electrical terminations for 4–6 mm² conductors in industrial electrical equipment and control systems.
What conductor sizes are supported?
The GKY-U3.5 is suitable for conductors from 4 mm² to 6 mm².
What stud size does this fork terminal fit?
The terminal is designed for 3.7 mm stud connections.
Why is the terminal reinforced?
The reinforced copper sleeve improves mechanical strength while providing excellent resistance to vibration, oscillation and continuous operational stress.
Where is this fork terminal commonly installed?
It is widely used in industrial control panels, machinery, automation systems, switchgear and OEM electrical equipment.
Trusted by Electrical Professionals Worldwide
Cembre reinforced insulated terminals are trusted worldwide by electricians, panel builders and OEM manufacturers for delivering reliable, vibration-resistant electrical connections in demanding industrial environments.
Part Number
2146020
Alternative Part Number
GKY-U3.5
Product type
Reinforced insulated fork terminal
Terminal style
Fork (spade) terminal
Conductor size
4–6 mm²
Fork opening / Stud size
3.7 mm
Fork width
7.2 mm
Barrel to fork centre
7.5 mm
Centre to fork tip
3.9 mm
Overall length
24.4 mm
Entry diameter
7 mm
Conductor material
Tin-plated electrolytic copper
Insulation material
Halogen-free PA6.6
Insulation colour
Yellow
Operating temperature
-20 °C to +105 °C (110 °C short-term)
Vibration resistant
Yes
Pack quantity
100 pieces
HS Code
85369010
Country of Manufacture
Taiwan
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.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...