Connector Technology

Multi-Rail Universal Rail Type Din Terminal Block

Guide rail terminal block selection: electrical thermocouple tr 10 cassette type thermocouple terminal rail mounted terminal thermocouple connector; elmex controls dinkle electrical terminal snap on stud type guide rail terminal block.

UK rail type terminal block

UK rail type terminal block

Characteristics of rail type terminal blocks
1. The terminal has universal mounting feet and can be installed on U-shaped guide rail NC 35 and G-shaped guide rail NC32.
2. The closed screw guide hole ensures ideal screwdriver operation.
3. Uniform accessories are provided for terminals of multiple cross-section levels. Such as end panels, grouping partitions, etc.
4. Potential distribution can be achieved by a fixed bridge inserted into the center of the terminal or an edge-plugged bridge inserted into the line cavity.
5. The ground terminal and N-wire slider disconnecting terminal have the same appearance as ordinary terminals.
6. Using the marking system ZT, unified terminal marking can be achieved.
7. The rich graphics enhance the three-dimensional sense of the wiring system.

Application of guide rail terminal blocks
Rail-type terminal blocks – the screws are made of high-strength copper alloy, the conductors are made of electrolytic copper, and the crimping frame is made of alloy copper that resists stress crack corrosion. The unique crimping structure has good self-locking and anti-loosening properties. These metal surfaces are also protected by tin or nickel plating. All-copper terminal blocks avoid the battery effect of steel metal parts and copper conductors in humid environments.
Rail terminals are used to facilitate the connection of wires. It is actually a piece of metal sealed in insulating plastic. There are holes at both ends to insert wires, and screws for tightening or loosening. For example, two wires sometimes need to be connected and sometimes need to be disconnected. At this time, you can use terminals to connect them and disconnect them at any time without having to weld them or twist them together, which is very convenient and quick. It is also suitable for interconnecting a large number of wires. In the power industry, there are special terminal strips and terminal boxes, which are full of terminal blocks, single-layer, double-layer, current, voltage, ordinary, breakable, etc. A certain crimping area is to ensure reliable contact and ensure that sufficient current can pass through.
When used for its intended purpose, a terminal provides an electrical connection between leads within an appliance, or between leads and components. Certain features require special attention, such as reinforced insulation required when assembling electrical appliances. The creepage distance between lead terminals of different polarities, or between lead terminals and non-charged metal bodies, or brackets of close lead terminals, etc. These characteristics need to be judged according to the standards of this appliance.

Sensor terminal block

Sensor terminal block

IN411S Terminal Block

IN411S Terminal Block

Combined PT spring terminal block

Combined PT spring terminal block

Classification of rail type terminal blocks
Universal rail type terminal block
1. Universal rail terminal
2. Universal ground terminal
3. One in and two out terminals
4. One in and two out ground terminals
5. Fuse terminal
6. Micro and small terminal blocks
7. Micro and small ground terminals
8. Double-layer universal terminal block
9. Universal test terminal

Tie-back spring terminal block
1. Universal straight-through spring terminal
2. Universal spring ground terminal
3. Three-conductor spring terminal
4. Three-conductor spring ground terminal
5. Four-conductor spring terminal

Installation and fixation of guide rail terminal blocks
Conventional guide rail standards include G-type, U-type, and thicknesses of 0. 8mm, 1. 0mm, and 1. 2mm, which need to meet such requirements. All we need to do is use better design solutions and materials that are better suited for performance. In the design, the groove range needs to be designed according to different thicknesses. The maximum setting value should be 1. 5mm, followed by 1. 2 to 0. 8mm. This kind of design can meet the changes of guide rails of different specifications, and some properly designed in terms of width can use the toughness of engineering plastics to make up for the lack of space, which can enhance the firmness of the installation.
The second is the fixation of the guide rail terminals, and the baffle is also included in the fixing accessories. In the terminal strip, in order to prevent the terminals from sliding left and right during installation, we need to use certain accessories to fix and clamp them. This is the purpose of the terminal fixing device. The commonly used fixing parts have two screws and a plastic part. It is composed of a fixing device. This structure can stick to the guide rail very well and can firmly grasp the guide rail after the screws are tightened, so that the terminal can get enough pressure on the guide rail to prevent it from sliding left and right. When combined with the use of baffles, the gap between terminals can be better filled, making the fixing effect more ideal.

Wiring protection of rail type terminal blocks
1. The bottom surface of the terminal clamp body is prismatic, ensuring the three-point centering of the conductor.
2. The grooves on the opposite side of the clamping body ensure that the contact surface has a minimum value to pass through the resistance after wiring.
3. Use elastic components to realize self-locking of screws