Our barrier terminal block (also called a barrier strip style terminal block) is a type of electrical connector used to securely terminate multiple wires and provide safe, isolated interconnections in an electrical panel, chassis or on a PCB.

Key Features

Each wire connection point is separated by a physical insulating barrier (hence the name) to prevent accidental short circuits between adjacent terminals.

Typically screw-clamp or bolt‐style terminations where you secure the stripped wire under a screw or via a ring/spade terminal.

Configurations vary: number of poles (circuits), pitch (spacing between terminals), current & voltage ratings, mounting method (PCB, chassis, panel) and wire gauge compatibility.

Why Use Barrier Terminal Blocks?

The barrier design offers enhanced safety: physical separation reduces risk of shorts, helps in high-voltage or high-current applications.

They're well suited for industrial control panels, power distribution, switchgear, and machinery wiring systems.

Ease of servicing and organisation: each wire is clearly terminated, labelled and isolated, which aids maintenance and troubleshooting.

Barrier Screw Terminal Block Typical Applications

Power supply boards or panels where multiple incoming/outgoing wires must connect to a common bus or distribution point.

Industrial machinery, motor control centres, HVAC control systems, and transport/rail where vibration, high current and reliability matter.

PCB mount for control modules or panel feed-through where a wire harness connects to board logic.

Terminal Barrier Strip Blocks Advantages

Enhanced safety via isolated terminals. 

Organized wiring, clear termination points, easier maintenance.

Can handle higher currents/voltages compared to compact modular types in some cases.

What is the difference between a terminal block and a barrier block?