German Servostar plug Servostar model Servostar price

Servostar plugs are accessory products used to achieve electrical connections and are categorized industrially as connectors. As industrial automation levels rise and industrial control requirements become stricter and more precise, the consumption of terminal blocks is gradually increasing. With the development of the electronics industry, the application scope of terminal blocks is expanding, and their varieties are becoming more diverse. Besides PCB board terminals, the most widely used types include hardware terminals, nut terminals, spring terminals, and more. Terminal blocks are applied to facilitate wire connections; they are essentially a metal strip enclosed in insulating plastic, with holes at both ends for inserting wires and screws for tightening or loosening. For example, two wires may sometimes need to be connected and sometimes disconnected; in such cases, terminals can be used to connect them, allowing for disconnection at any time without the need for welding or twisting together, which is very convenient and quick. They are also suitable for large-scale wire interconnections. In the power industry, there are dedicated terminal strips and terminal boxes filled with terminal blocks, including single-layer, double-layer, current, voltage, standard, and disconnectable types. A certain crimping area is required to ensure reliable contact and sufficient current carrying capacity.

Servostar plug classification

Terminal blocks can be classified into European-style terminal block series, pluggable terminal block series, transformer terminal blocks, building wiring terminals, barrier-type terminal block series, spring-type terminal block series, DIN rail-mounted terminal block series, wall-through terminal block series, and optocoupler terminal blocks. Pluggable types consist of two parts connected by plugging: one part clamps the wire and then plugs into the other part, which is soldered onto the PCB board. Based on the mechanical principle at the bottom, this anti-vibration design ensures long-term airtight connection and product reliability. Assembly ears can be added to both ends of the socket; these ears largely protect the contacts and prevent poor alignment, while the socket design ensures correct insertion into the housing. Sockets can also feature assembly clips and locking clips. Assembly clips provide more secure fixation to the PCB board, and locking clips can lock the housing and socket after installation. Various socket designs can accommodate different insertion methods into the housing, such as horizontal, vertical, or angled orientation relative to the printed circuit board, allowing selection based on customer requirements. Both metric and standard wire gauges can be selected, making this the best-selling terminal type on the market. Barrier-type terminals enable safe, reliable, and effective connections, especially widely used in high-current and high-voltage environments. Spring-type terminals are a new type utilizing spring devices, widely applied in global electrical and electronic engineering industries: lighting, elevator control, instruments, power supplies, chemical, and automotive power systems. DIN rail mounting adopts reliable screw connection technology, electronic fuse technology, and the latest electrical connection technology, widely used in power electronics, communications, electrical control, and power supply fields. DIN rail-mounted types use wire clamping and unique self-locking screw designs, ensuring reliable and safe wiring connections. This series features an attractive appearance and can be equipped with various accessories, such as short-circuit links, identification strips, and end plates. Wall-through types adopt screw connection technology, with insulation material made of PA66 (flammability rating: UL94, V-0), and connectors made of high-quality highly conductive metal materials.

Servostar plug features

Utilizing existing DIN rail-mounted terminal block frame screw connection technology and adding circuits composed of electronic components, optoelectronic transmission coupling is achieved. The core of automatic control requires that the control unit be reliably isolated from various sensors and actuators to avoid interference. Sanmenwan WUKG2 opto-isolation terminals effectively fulfill this function, ensuring that field signals match the low voltage required by electronic control devices. They can also serve as interface components between peripheral equipment for process control and control, signal, and regulator devices, suitable for different voltage and power ranges. Opto-isolation terminals offer advantages such as low signal loss at the control end, high switching frequency, no mechanical contact bounce, wear-free switching, high insulation voltage, resistance to vibration, independence from position, and long service life, leading to wide application in the field of automatic control.

Servostar plug wiring methods

1) Apply moderate force when tightening wired connections to prevent stripping the threads of bolts and nuts due to excessive force. Replace any stripped bolts and nuts immediately; do not continue using them. 2) When tightening or loosening screws with a screwdriver, apply firm pressure to keep the screwdriver engaged with the screw head before tightening or loosening to prevent slipping, which can damage the screw and make removal difficult, especially for common circuit breakers in distribution boxes. 3) If bolts or nuts are difficult to remove, do not act rashly to prevent deformation that makes removal even harder. Tap appropriately or apply screw loosening agents or dilute hydrochloric acid, then attempt removal after a short wait. 4) Do not use pliers to tighten or loosen bolts and nuts to prevent damage. When using an adjustable wrench, adjust the jaw opening properly to prevent damaging or deforming the bolts and nuts, which would make removal difficult. 5) Each terminal block allows a maximum of two wires of the same type and specification to be connected. 6) For terminal blocks prone to loosening or poor contact, wire ends must be secured in a "U" shape on the terminal block to increase contact area and prevent loosening. 7) When connecting wire ends or cable lugs, do not install non-copper or poorly conductive washers in between. 8) When connecting wire ends, the contact surface must be smooth and free of oxidation. When connecting cable lugs or copper bars, apply conductive paste to the cleaned contact surface before tightening. 9) When connecting temporary lines, single-strand flexible wires should be folded once at the end before connecting to the lower terminal of the circuit breaker; single-core solid wires should be connected in a "U" shape to the lower terminal of the circuit breaker. 10) For motor wiring of 30KW and above, do not use poorly conductive washers (such as galvanized nuts, flat washers, or spring washers) between the motor output leads and the connecting cables. 11) When wrapping cables or other equipment requiring insulation protection with insulating tape, wrap from one end to the other with a 1/2 overlap ratio, ensuring at least one back-and-forth layer.

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