German telegartner plug telegartner model telegartner price

telegartner plug terminal blocks, as a type of connector, are an important component in the electrical industry, playing an irreplaceable and significant role. Since engineering technicians start their inspection from the interface, i.e., the terminals, during maintenance, the design of terminal blocks is particularly important. Terminal blocks can be classified into: European-style terminal block series, pluggable terminal block series, transformer terminal blocks, building wiring terminals, barrier-type terminal blocks, spring-type terminal blocks, DIN rail terminal blocks, wall-through terminal blocks, and optocoupler-type terminal blocks. The plastic insulation materials and conductive components of terminal blocks directly affect their quality, determining the insulation performance and conductivity of the terminals respectively.

telegartner plug applications

Mainly applied in lighting, communications, security, and other industries. Pluggable terminals have the widest range of applications, such as in variable frequency drives, explosion-proof equipment, CNC panels, access control controllers, sensors, PLC, instruments, power supplies, servo drives. The common requirements for pluggable terminals in these application industries are: stable insertion and extraction force, low contact resistance, and the ability to meet certain life and fatigue standards, which imposes higher requirements on the material of metal spring contacts. This requires product designers to have considerable experience in structure and material selection. Barrier-type terminals are mainly applied in: power supplies, relays (especially double-layer terminals), variable frequency drives, elevator industry (less common), and air conditioners. The requirements for this series of terminals include high torque requirements for screws during wire clamping, the distance when the screw is retracted to its highest position must be greater than the maximum wire clamping range, long-position terminals must not warp or deform, and screws must have high corrosion resistance.

telegartner plug material

1) The material of the female or male terminal shall be copper alloy, plated copper alloy, nickel, or nickel alloy. [Exception: If the structure of the electrical appliance or device permits, the female or male terminal may be plated sheet metal or a non-plated corrosion-resistant alloy. 2) If formed female terminals or trimmed male terminals are supplied in the form of a terminal strip, and when the terminal strip is continuously fed into the processing tool the terminals are crimped and separated from the strip, then in this case the edges where the terminals connect to the strip do not require plating. The standard terminals used in temperature and thermal cycling tests shall be tin-plated steel or corrosion-resistant steel; according to the Rockwell 30T hardness scale, their hardness shall be Rockwell hardness 68 ± 5. Exception: If the female terminal is only suitable for connecting to male terminals made of copper alloy, then the standard terminal made of C26000 copper alloy shall be used for testing. 2.3) According to the Rockwell 30T hardness scale, the hardness of standard terminals made of brass shall be 62 ± 7.

telegartner plug usage precautions

Fieldbus is gradually being promoted in industrial sites. Many devices not only have traditional instrument functions but also possess fieldbus capabilities. In DCS, fieldbus is widely used. The following issues should be noted when using fieldbus: 1) Communication distance. Fieldbus communication distance generally has certain requirements. For example, PROFIBUS/DP at a rate of 12Mbps can reach 200m using standard cable; if using a rate of 187.5kbps, it can reach 1 000m. Communication distance has two meanings: first, the distance achievable between two nodes without repeaters; generally, distance is inversely proportional to communication rate; second, the distance between the two farthest nodes in the entire network. Manufacturers' introductory materials often lack clarity on this description. In actual use, the scope of the entire network must be considered. Electromagnetic signals take time to transmit through cables, especially in some high-speed fieldbuses. If the distance is increased, certain communication parameters must be modified; 2) Cable selection. The site environment determines the fieldbus communication speed and medium. Generally, fieldbus uses electrical signals to transmit data, inevitably affected by the surrounding electromagnetic environment during transmission. Most fieldbuses use shielded twisted pair cables. It must be noted that different types of fieldbuses may require different shielded twisted pair cables. Fieldbus developers generally specify a special cable, and the specified rate and transmission distance can only be achieved under correct usage of this cable. In extremely harsh electromagnetic conditions, optical fiber is a reasonable choice; otherwise, local interference may affect the operation of the entire fieldbus network; 3) Isolation. Generally, fieldbus electrical signals are electrically isolated from the internal equipment. Fieldbus cables are distributed throughout the workshop. If high voltage intrudes, it will damage the bus transceivers of all devices in the network segment. Without isolation, high voltage signals will continue to damage other internal circuits of the equipment, leading to serious consequences; 4) Shielding. The outer layer of the shielded cable used in fieldbus must be well grounded at one point. If high-frequency interference is severe, multi-point capacitive grounding can be used. Multi-point direct grounding is not allowed to avoid ground loop currents; 5) Connectors. Fieldbus generally does not have strict regulations on connectors, but improper handling can affect the communication of the entire system. For example, fieldbus generally adopts a bus-type daisy chain connection method. When connecting each device, attention must be paid to how to insert and remove equipment without affecting existing communication conditions, which imposes certain requirements on connectors; 6) Termination matching. Fieldbus signals, like all electromagnetic wave signals, exhibit reflection phenomena. Resistive matching should be adopted at both ends of each network segment of the bus. The first function is to absorb reflections, and the second is to achieve correct voltage levels at both ends of the bus to ensure communication. Therefore, fieldbus technology is the intersection and integration of control, computer, and communication technologies. Its emergence and rapid development reflect the requirements in the control field for reducing costs, improving reliability, enhancing maintainability, and increasing the intelligence of data acquisition.

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