10 x Long terminals / medium diameter

Long Medium Diameter Terminals Tectime — Reliability in Every Connection

Electrical terminals are one of those small components that make the difference between a flawless installation and a constant source of problems. This Tectime pack, with reference TT551, includes 10 units of long medium diameter terminals, designed for those who pay attention to every detail in the assembly and maintenance of their circuits or setups.

Function and Performance

Long connection terminals offer a larger gripping surface on the wire and facilitate a solid and durable crimp. The medium diameter makes them versatile for the most common wire gauges used in slot installations and electronics applied to modelling. A good connection reduces signal loss and prevents intermittent failures that ruin a practice session or a competition day at the club.

Compatibility and Applications

• Electrical installations of home and club slot circuits.
• Preparations and modifications of slot cars that require splicing or reconnections of wiring.
• Maintenance work on benches and track power systems.
• Any modelling or electronics application where a long medium diameter terminal is needed.

Assembly and Preparation

The long format makes it easier to work with standard crimping pliers. We recommend stripping the wire to the appropriate length, inserting it to the end of the terminal, and crimping in two points — on the conductor and on the insulation — to ensure maximum mechanical and electrical strength. Having 10 units in the pack allows for multiple interventions without running short.

Common Mistakes

• Using the terminal without reaching the end: reduces the contact surface and weakens the joint.
• Not crimping on the insulation: the wire remains without mechanical support and may pull out over time.
• Mixing diameters: a terminal with a different diameter than the wire causes loose connections or makes it impossible to crimp correctly.

Frequently Asked Questions

What wire gauge are these terminals designed for?

They are designed for the usual medium diameter in slot and modelling electronics installations. If you have doubts about the exact compatibility with your wire gauge, consult Tectime's specifications or contact our team.

Can they be used without crimping pliers?

It is not recommended. To ensure a secure and durable connection, an appropriate crimping tool for the terminal size is necessary.

Are they reusable?

Crimp terminals are not designed to be reused once crimped. If you need to redo a connection, the correct approach is to use a new unit.

Why buy a pack of 10 and not individual units?

Having a minimum stock of terminals prevents downtime during preparation or maintenance. It is common to need several in the same work session, so you always have spares on hand.

The Tectime TT551 is a pack of 10 long medium-diameter terminals, an essential electrical component for slot car track wiring, club circuit maintenance and scale modelling electronics. Reliable crimping, consistent conductivity and a practical multi-unit format make this a staple spare part for any serious slot hobbyist or pit box toolkit.