erminal blocks are accessory products used to achieve electrical connections, which are classified as connectors in industry. With the increasing degree of industrial automation and the increasingly strict and accurate requirements for industrial control, the consumption of wiring terminals is gradually increasing. With the development of the electronic industry, the range of use of terminal blocks is increasing, and the types are also increasing. Currently, the most widely used terminals are not only PCB board terminals, but also hardware terminals, nut terminals, spring terminals, and so on

First, introduce the source of the terminal blocks

In 1928, Phoenix Contact invented the world's first modular wiring terminal, which is the prototype of modern terminals and the first invention patent applied for and obtained by Phoenix Contact. Since then, Phoenix Contact has been passionate about innovation and committed to the development of various connection technologies, forming a complete electrical interface technology system, many of which have become industry application standards. Currently, CLIPLINE has more than 3000 product categories, widely used in various industrial control cabinets and electrical cabinet electrical connection occasions

Phoenix Contact terminal blocks are also widely used in frequency converters

With the development of market economy and automation, as well as the improvement of the intelligent degree of wiring terminals, using high-voltage frequency converters to control the speed of pump loads is not only beneficial for improving the process and product quality, but also a requirement for energy conservation and economic operation of equipment, which is an inevitable trend of sustainable development. There are many benefits of speed control for pump loads. From the perspective of application examples, most of them have achieved good results (some can save up to 30% - 40% energy), significantly reducing the cost of water production in waterworks, improving the degree of automation, and facilitating the depressurization operation of pumps and pipe networks, reducing leakage and pipe bursts, and extending the service life of equipment.

In high-voltage inverters, in order to solve the strong and weak current isolation between the main control system and the power unit in the connection terminals of the unit series multi-level high-voltage inverters, as well as the electromagnetic interference problems between the power unit and the power unit, a fiber optic connection method is proposed to achieve long-distance transmission of power driven PWM signals