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Terminal Blocks - Panel Mount

Terminal blocks are electrical components used for the connection of two or more electrical conductors. They are also known as terminal strips, lug strips, or screw strips. They offer protection against short-circuit, overloading and contact fault conditions, and provide electrical noise suppression.

Terminal blocks are a type of electrical connector used in a wide array of applications, from embedded electrical systems to industrial automation platforms and even in consumer electronics. These devices are designed to provide secure connections between multiple source power conductors or load currents for signaling and data communication. To ensure reliable circuitry performance, terminal blocks must be designed with quality assurance in mind.

Panel mount terminal blocks look like standard rectangular metal bars with various contacts mounted around its rectangular perimeter. Depending on the application, these contacts can be soldered, crimped, or otherwise secured onto the metal bar. Panel mount terminal blocks are often used for wiring power to equipment controls panels, allowing for multiple connections in a very small space.

Panel mount terminal blocks are typically divided into five different categories; single-pole (unipolar), double-pole (bipolar), three-pole (triple), IMR and HRC-30. The single, double and three-pole terminal blocks are suitable for a variety of general-purpose functions; while the IMR and HRC-30 styles are designed for more specialized applications.

The first step in selecting the correct panel mount terminal block is to evaluate the application and determine the desired current-handling capacity. The next step is to choose the appropriate panel mount block based on the type of connection required. Terminal blocks typically offer two connection styles; soldered or crimped. Soldered connections are made with standard soldering equipment, while crimped connections are made with specialized tools.

The wire size is the most important parameter to consider when selecting the correct panel mount terminal block. The wire size is usually measured in AWG (American Wire Gauge) or mils (thousandths of an inch). Care should be taken not to exceed the listed maximum wire size in order to avoid overloading the terminal block.

Panel mount terminal blocks are a versatile and efficient way to connect power sources to equipment components. They are also intended to provide electrical noise suppression, meaning that they are designed to shut off when exposed to faulty or improper termination such as short circuits or overloading. This aids in maintaining the safe operation of the equipment.