Sleeve / Ferrule JetWorld TULEJKA 7618-20-10 — metal wire ferrule, size 20, length 10 mm

JetWorld TULEJKA 7618-20-10 is a metal wire ferrule designed to provide a reliable, compact termination for stranded conductors. The size 20 ferrule with a 10 mm length reinforces cable ends, improves conductor insertion into terminal blocks and screw connectors, and ensures consistent electrical contact in relays and control panels. This ferrule is suitable for use in electrical installations, control cabinets and maintenance tasks where a secure, crimped conductor end is required.

Advantages

The metal construction ensures good conductivity and mechanical strength while the precisely formed barrel allows for consistent crimping results. A 10 mm length offers sufficient overlap for many common wire diameters that correspond to size 20 ferrules, reducing the risk of stray strands and improving the durability of screw or clamp connections. The uniform inner surface promotes even compression and stable electrical contact over time.

Suitable for

• Crimping stranded copper conductors for terminal blocks and screw connectors
• Control cabinet wiring and relay connections
• Installation and maintenance work in electrical panels
• Repairing or reinforcing cable ends in machinery and equipment

Key specifications

• Material: metal ferrule (conductive metal)
• Ferrule size: 20 (standardized cross-section family)
• Length: 10 mm
• Intended use: crimp termination for stranded conductors
• Typical applications: terminal blocks, screw connectors, relays, control cabinets

How to use

Select the correct ferrule size for the conductor cross-section, strip the insulation to the recommended length, and insert the exposed strands fully into the ferrule barrel. Use an appropriately sized crimping tool to compress the ferrule evenly until a secure mechanical and electrical connection is achieved. After crimping, verify that no stray strands protrude and that the ferrule seats properly in the intended terminal or connector.

Usage recommendations

For reliable results, match the ferrule size to the conductor cross-section and use a quality crimping tool with a die suited to size 20 ferrules. Avoid using pliers-style or undersized tools which may produce inconsistent crimps. Inspect crimps visually and, where applicable, perform a pull test to confirm mechanical integrity before placing circuits into service.