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Three-Tier 2.5mm Through Terminal Block - Gray

Gray three-tier through-terminal block, 0.25–2.5 mm wire size, spring-loaded contacts, 24 A current capacity, compact design for secure and quick connections in tight spaces

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Three-Tier 2.5mm Through Terminal Block – Gray

The Three‑Tier 2.5 mm Through Terminal Block is a compact, high‑performance connector designed for reliable electrical connections in a wide range of industrial and electronic applications. Its sleek gray finish blends seamlessly into modern control panels, while its robust construction ensures long‑term durability.

Key Features

  • Versatile Wire Size Compatibility: Accepts conductors from Ø 0.25 mm up to Ø 2.5 mm, making it suitable for both fine‑wire signal lines and heavier power feeds.
  • Three‑Tier Design: Provides three separate contact points within a single compact unit, allowing multiple connections without increasing panel footprint.
  • Through‑Type Operation: Wires pass straight through the block, enabling quick installation and easy cable management. The design eliminates the need for splicing or soldering.
  • Spring‑Loaded Terminals: Each contact is spring‑loaded to maintain secure mechanical pressure on the wire, ensuring excellent electrical continuity even under vibration.
  • High Current Capacity: Rated for up to 24 A per terminal, suitable for low‑to‑medium current applications such as control circuits and signal routing.
  • Low Contact Resistance: Maintains a contact resistance of less than 0.1 Ω, minimizing power loss and heat generation.
  • Robust Construction: The block body is made from high‑strength plastic that resists impact, temperature variations, and chemical exposure.
  • Clear Identification: Each terminal slot is clearly labeled with a number (1–3) for easy identification during installation and maintenance.

Applications

This terminal block excels in environments where space, reliability, and ease of use are paramount. Typical applications include:

  • Industrial control panels and automation systems
  • Signal routing for instrumentation and measurement equipment
  • Power distribution within small to medium‑sized machinery
  • Prototyping and custom electronics projects requiring quick, repeatable connections
  • Retrofit work where existing terminals need replacement without redesigning the panel layout

Installation Guide

  1. Prepare the Wire: Strip the insulation to expose approximately 5 mm of conductor. Ensure the wire is clean and free from burrs.
  2. Select the Correct Terminal Slot: Identify the desired slot (1, 2, or 3) based on your circuit layout.
  3. Insert the Wire: Push the stripped end of the wire into the terminal slot until it reaches the bottom. The spring mechanism will secure the wire in place.
  4. Check for Firm Contact: Gently tug on the wire to confirm that it is firmly held by the terminal. A loose connection may result in intermittent operation.
  5. Repeat as Needed: For multiple connections, repeat steps 1–4 for each required slot.

Maintenance Tips

  • Inspect terminals periodically for signs of wear or corrosion. Replace the block if contacts appear damaged.
  • Avoid over‑tightening or using excessive force when inserting wires, as this can damage the spring mechanism.
  • Keep the terminal block clean by wiping with a dry cloth; avoid abrasive cleaners that could degrade the plastic housing.

Technical Specifications

Parameter Value
Wire Size Range Ø 0.25 mm – Ø 2.5 mm
Number of Terminals 3
Current Rating per Terminal 24 A
Contact Resistance < 0.1 Ω
Material (Housing) High‑strength engineering plastic
Color Gray
Dimensions (Approx.) Length: 20 mm, Width: 12 mm, Height: 8 mm

Why Choose This Terminal Block?

The combination of a compact three‑tier layout, wide wire size compatibility, and spring‑loaded terminals makes this product an ideal choice for engineers seeking reliable, space‑saving connections. Its straightforward installation process reduces labor time, while the durable construction ensures long‑term performance even in demanding industrial settings.


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