Pluggable Terminal Blocks Feature Spring Clamp and Plug Technology

Altech Corporation's new line of pluggable terminal blocks combines secure wire connections with quick, tool-free installation.


News March 10, 2026 by Shawn Dietrich

Inside any control panel, wires need to be connected together to form circuits. A terminal block provides a safe and efficient method of joining wires and circuits. Typically, terminal blocks use screws to secure the wires to the contact.

Recently, Altech Corporation developed a hybrid terminal block that doesn't require screws. This pluggable terminal block combines the simplicity of a plug connection with the vibration resistance of a spring clamp. Additionally, the block allows for easy connection and reconnection without damaging wires or terminals.

 

Altech has designed its pluggable terminal blocks for secure, tool-free connections. Video used courtesy of Altech Corporation

 

Reducing Wiring Time

When building equipment, the time that the machine is not running is the most expensive. Trades and technicians are pushed to get the machine running as quickly as possible.

The new Altech / Connectwell pluggable terminal blocks reduce wiring time by eliminating the need for tools and screw tightening. Each wire is inserted into the plug in the required order, then the entire plug is inserted into the terminal block. This creates an error-free and secure connection that can be disconnected and reconnected without issue.

 

Altech's line of pluggable terminal blocks does away with the time spent screwing in connections

Altech's line of pluggable terminal blocks feature integrated locking pins, enabling connections to withstand vibrations. Image used courtesy of Altech Corporation

 

The Pluggable Connection

So why not just connect the wires directly to the terminal block? Some situations require constant connecting and disconnecting. Equipment that has changeover tooling for different part types might require different sensors or motor connections. By using a plug-style connection, technicians can quickly and easily remove the tooling from the panel.

Some panels have tight physical constraints, and technicians may not be able to fit a tool inside the panel to tighten screw terminals. With a plug-style connection, wiring can be done outside the panel and confirmed for accuracy before plugging into the circuit.

 

The pluggable terminal blocks are available as single, stackable blocks, or as pre-stacked blocks (up to 15 poles)

The pluggable terminal blocks are available as single, stackable blocks, or as pre-stacked blocks (up to 15 poles). Image used courtesy of Altech Corporation

 

Configuration and Customization

To stay competitive in the automation components industry, products need to be configurable. Altech's new pluggable terminal blocks are available as single-stacked or pre-stacked, up to 15 poles. This configuration allows multiple connections in one plug.

Designing control panels takes forethought and insight to ensure connections can be made accurately and withstand the environment in which they are used. The new pluggable terminal blocks from Altech allow designers and technicians to provide accurate and configurable connection and reconnection circuits.