Terminal ferrule (tinned) Erko TE_2,5-12/100 — 2.5 mm², tubular end, pack of 100

Erko tinned tubular terminal ferrules TE 2.5-12/100 are crimp end sleeves for solid and stranded conductors with a 2.5 mm² cross-section. Supplied as a pack of 100 uninsulated ferrules, these tubular ends provide a consistent metal-to-metal contact surface and protect conductor strands from fraying during termination. The tin plating improves corrosion resistance and solderability, making these ferrules suitable for electrical installations, control panels and general equipment wiring where reliable crimped connections are required.

Advantages

These tubular end ferrules are made to deliver uniform crimp quality and a compact conductor end that fits firmly into screw terminals and connectors. The tinned surface reduces oxidation and enhances conductivity compared with bare copper, while the smooth internal bore helps gather and retain stranded conductors during crimping. Supplied in a convenient pack of 100, they support repetitive installation tasks and reduce preparation time on-site.

Suitable for

• Crimping onto stranded and solid copper conductors with a 2.5 mm² cross-section
• Terminal blocks and screw-type connectors in control panels
• Field electrical installations and equipment wiring
• Applications requiring corrosion-resistant end sleeves or improved solderability

Key specifications

• Conductor cross-section: 2.5 mm²
• Type: tubular (ferrule) end sleeve, uninsulated
• Plating: tinned surface for improved corrosion resistance
• Quantity: 100 pieces per pack
• Suitable for stranded and solid copper conductors

How to use

Strip the conductor to the appropriate length so the bare wire fully enters the tubular sleeve. Insert the conductor strands into the ferrule until the insulation meets the sleeve end. Use a suitable crimping tool matched to 2.5 mm² ferrules and apply a single, firm crimp to compress the sleeve evenly around the conductor. After crimping, verify a secure mechanical and electrical connection by a gentle pull test and visual inspection to ensure no stray strands are visible.

Usage recommendations

For best results, use a calibrated crimping tool designed for tubular ferrules of 2.5 mm². Avoid reusing ferrules after crimping. In corrosive or high-vibration environments consider selecting appropriate protective measures or additional locking connectors as required by the installation standards.