A terminal block, also known as a terminal strip or a connection block, is a type of insulated electrical connector that connects or secures two or more wires together. Terminal blocks work by isolating electrical paths to prevent short circuits and ensuring a secure connection, which is crucial for the integrity and safety of electrical circuits. They play a pivotal role within electrical systems, serving as the connection points that facilitate both power distribution and signal transmission.
What are Terminal Blocks Used For?
Terminal blocks are typically used in industrial power, control, automation, and signal applications where several connections are needed at any one time. Connectors are typically mounted on DIN rail and fixed into panels or electrical enclosures.
Termination Types
Terminal blocks are often categorised by their termination type. The type of connection technology you choose depends on the application, environment, and conductor cross-section or AWG size of your cable. Our terminal blocks are available in several types, they include:
Screw Clamp
Screw clamp terminals are the most common type of connection method. Conductors are inserted into the block and are pressed against the conductor strip. A screw is then tightened, making the connection.
Spring Clamp
Spring clamp terminals use a spring-operated clamping mechanism to hold the conductor in place. A screwdriver is inserted into the terminal, the wire is inserted, and when the clamp is released, it holds the wire in place. These types of terminals are very secure and ideal in environments subject to high vibration.
Push-in Connection
Push-in technology allows you to simply push the conductor into the connection gap. Push-in types allow you to use solid conductors or stranded wires with the addition of a ferrule connector. These are tool-free for quick installation.
Types of Terminal Blocks
RS supplies a wide range of high-performance terminal blocks at competitive prices to suit your every need. Our terminal connectors come in a vast array of types, styles, and connection methods. Some of the most popular types of terminal block that you can buy are:
DIN Rail Terminal Block
One of the most common types of connector blocks used today is DIN rail terminal blocks. DIN rail connectors can be single feed though, dual-level, and three-level. The terminals are simply clipped onto the rail and mounted into panels or enclosures. DIN Rail terminals are ideal for applications where space is limited. These terminal blocks can also be enhanced with DIN rail accessories to improve functionality by facilitating better wiring and additional connections.
PCB Terminal Blocks
PCB terminal blocks facilitate the secure transfer of signals or power from surface wiring to printed circuit boards, which are crucial for device functionality and reliability.
Standard Terminals
Standard terminals, or choc block strips, offer a basic, cost-effective solution for connecting wires without the need for a protective enclosure.
Distribution Blocks and Commoning Blocks
Distribution and commoning blocks simplify wiring by allowing the connection of multiple circuits in a single compact unit, streamlining power distribution and grounding.
Fused Blocks
Fused terminal blocks incorporate fuses within the connection point to protect circuits by breaking the connection if the current becomes too high, ensuring safety.
Barrier Strips
This type of terminal block provides a way to connect individual wires while maintaining a barrier to protect each connection. They are especially useful in preventing circuit shorts.
Industry Applications
Industrial terminal blocks streamline electrical connections and enhance safety in various sectors, such as in:
- Discrete manufacturing: In discrete manufacturing, terminal blocks streamline electrical connections for machinery and equipment, ensuring reliable operation and easy maintenance.
- Process manufacturing: Industrial terminal blocks in process manufacturing facilitate robust electrical connections crucial for controlling process equipment, ensuring continuous operations.
- Energy & utilities: In the energy sector, terminal blocks are used to manage connections within power distribution equipment, crucial for system reliability.
- Facilities intralogistics: Within facilities intralogistics, industrial terminal blocks provide dependable connections for automated systems, ensuring seamless goods movement and system integration.
Your Trusted Terminal Blocks Supplier & Manufacturer
RS is a globally recognised and trusted supplier, distributor, and manufacturer of terminal blocks in Australia. We offer an extensive selection of high-quality industrial terminal blocks from leading brands like Weidmuller, Phoenix Contact, WAGO, ABB, Entrelec, and RS PRO to ensure you receive only the best in quality and performance.
If you’re looking to buy terminal blocks, choose RS for competitive terminal block prices and a reliable supply. For more information on our delivery services and fees, please visit our Delivery Page.
