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The integration of PCB competence and know-how in connection technology to a holistic approach acts as a key to greater efficiency and performance.
As an expert partner for device manufacturers, we dispose of comprehensive know-how gained from decade-long experience, which we gladly share with you.
In our white papers we have composed detailed information about the issues, device manufacturer industry has its focus on. Experience up-to-date and well-grounded, what has proven successful in practice, and which developments will move your project forward.
To protect persons or system from the effects of electrical operating voltages, especially in the case of malfunction of equipment, sufficient measurement of the clearance and creepage distance is required.
For safety reasons and for every certification (IEC, UL, CSA) it is essential that certain clearance and creepage distances are maintained.
Depending on the requirements and area of use, we offer you the suitable connection system. Find out all details about our various wire connection systems and convince yourself of the customer benefit.
The stripped or prepared wire is simply pushed into the terminal point as far as it will go and the connection is finished. Operating the release lever is only required with flexible wires or to release the connection. The stainless steel spring ensures a high contact force between wire and the tinned copper busbar. A stainless steel cage enclosure prevents subsidence in the contact area. To prevent any drop in clamping force plastic parts were deliberately not used.
The default choice for operation in the field; it permits speedy wiring and, combined with its small size, its intuitive use is also advantageous even in environments with severe vibration.
Steel clamping-yokes made by using a stamping and bending process guarantee a vibration proof clamp connection. When the screw on the clamp is tightened, there is a counter effect in the clamping yoke’s threaded area which prevents the connection accidentally loosening. As the screw thread is on an inclined plane, there is a force gain created and a very high clamping force is achieved. Weidmüller uses hardened steel with optimal corrosion protection for stability and security and copper alloys in the contact area for good electrical conductivity.
The standard connection for applications in industrial environments with the highest requirements for reliability even under harsh conditions.
The connection produces the greatest possible packing density in the terminal area. The ”pull effect“ ensures that the connected wire is pulled in to the clamping point producing a secure contact.
Housing design or installation requirements such as PCB slots, that do not allow a right angled screw operation for reasons of space.
The crimp contacts can be attached using hand tools or with a crimping machine for producing large batches. The contacts are then locked into the housing provided. For fully automated processing, taped crimp contacts are available.
Applications that combine fully automatic and factory oriented processing steps with the actual field wiring. Works in environments with severe vibration or temperature fluctuations.
PCB plug-in connectors are not standardised, they are manufactured and tested along the lines of the current standards.
Product group | harmonised | national | international |
| PCB terminals | EN 60947-7-1 | DIN EN 60947-7-1 / VDE 0611 | IEC 60947-7-1 |
| EN 61984 | DIN EN 61984 / VDE 0627 | IEC 61984 | |
| DIN IEC 60512 | IEC 60512 | ||
| Not standardized PCB connectors | EN 60947-7-1 | DIN EN 60947-7-1 / VDE 0611 | IEC 60947-7-1 |
| EN 61984 | DIN EN 61984 / VDE 0627 | IEC 61984 | |
| DIN IEC 60512 | IEC 60512 | ||
| Feed through terminals | EN 60947-7-1 | DIN EN 60947-7-1 / VDE 0611 | IEC 60947-7-1 |
Types of connection | harmonized | national | international |
| Screw connection | EN 60999 | DIN EN 60999 / VDE 0609 | IEC 60999 |
| Screwless connection | EN 60999 | DIN EN 60999 / VDE 0609 | IEC 60999 |
| Crimp connection | EN 60352-2 | DIN EN 60352-2 | IEC 60352-2 |
| Solder connection | HD 323.2.2.20S3 | DIN IEC 60068-2-20 | IEC 60068-2-20 |
| Wire wrap connection | EN 60352-1 | DIN EN 60352-1 | IEC 60352-1 |
| IDC connection | EN 60352-4 | DIN EN 60352-4 | IEC 60352-4 |
Electronic subassemblies are manufactured economically using surface-mount technology (SMT) with surface-mount devices (SMD). Design measures such as co-planarity and the size/shape of the soldering pads lend electromechanical components a reliable and stable printed-circuit board connection. The structural shape and temperature stability of Weidmüller SMD components are matched to processing in automated surface mounting equipment.
Subassemblies that are exclusively equipped with SMD components and exposed to medium electromechanical loads.
Wave soldered products in THT (Through Hole Technology), also known as pin-in-hole, is the best alternative to SMT (Surface Mount Technology) if higher forces can act on electromagnetic PCB components. The component design of Weidmüller products is specifically developed for this application and takes into account the requirements in terms of design types and processing from the beginning.
Wired (THT) PCB plug-in connectors and terminal blocks are processed in wave soldering. The pins of the component are pushed into the through-holes and are then run through one or more solder waves. When applying the solder to the solder pin, the fluid solder is drawn into the through-holes by the wetting and capillary forces and forms the solder joint.
Reflow products in THT (through-hole technology) are the best alternative to using just SMT (surface-mount technology) if higher forces might be operating on the printed-circuit board components. The component design of Weidmüller products is specifically developed for this application and takes into account the requirements in terms of structural shape, temperature stability, and processing for THT products from the word “go”.
Applications where fast processing and reliable and stable connections to the printed-circuit board are of the essence. Reflow, wave, or hand soldering with high temperature requirements.
All the metals used by Weidmüller are selected and processed with their surfaces treated according to the latest technical standards, and are compliant with the RoHS (Restriction of Hazardous Substances) EU Directive.
Steel parts are electrogalvanised and treated with an additional passivation technique. The surface protection conforms to the highest standards, is matched to the special requirements of the connection systems used and is RoHS-compatible. Experience gained from storage in outdoor test racks at different locations (industrial, marine, tropical, and normal atmospheres) has been incorporated into the design of the surface protection.
The current-carrying materials copper, brass, and bronze are characterised by a high conductivity plus good mechanical properties. The surfaces are usually given a coating of tin, which creates an extremely good, “malleable” contact with a low contact resistance. Apart from ensuring consistently good electrical properties, the tin coating provides excellent protection against corrosion. Solder connections are also given a coating of tin. In order to guarantee the long-term solderability (shelf life), the brass parts are given an additional nickel coating as a diffusion barrier. The nickel coating provides effective protection against the loss of zinc atoms from the brass.
The heart of a connector is its contacts. They make up the actual detachable connection. Two types of contacts make this possible: male and female connectors. The pin conducts the electrical connection along its outer surface. It is inserted into the socket, which conducts the electrical connection along the surface of its interior side. The contacts on OMNIMATE plug-in connectors consist of copper alloys. The contact surfaces have different galvanic coatings according to the operating conditions.
Tin-plated contact surfaces are the standard surfaces for OMNIMATE plug-in connectors at Weidmüller. These surfaces are ideally suited for normal operating conditions in the industrial environment, while high contact forces and the relatively low degree of hardness of the surface material ensure low contact resistances. Tin-plated contact surfaces are suitable for transmitting higher currents and voltages (>100 mV and >100 mA) and for low plugging cycles.
Gold-plated contact surfaces are more resistant against climatic, corrosive and especially mechanical stress conditions. The latter mainly occur as a result of vibrations or high plugging cycles. Gold surfaces have the best properties for transmitting low currents and voltages (<100 mV and <3 mA).
Due to its high conductivity, silver is excellently suited to high-current applications. OMNIMATE Power products come equipped with silver-plated contact surfaces, depending on their performance class.
Insulating materials In order to do justice to the different requirements placed on our products, it is necessary to use various insulating materials tailored to the particular application. None of the insulating materials used by Weidmüller contain any hazardous substances. Above all, we ensure that all our materials are free of cadmium. They contain no colour pigments based on heavy metals and do not lead to the formation of dioxin or furan.
Every new design needs different components to provide a suitable solution for your application. For example, the mating connectors on the PCB and in the housing have to meet different requirements. When installing the mating connectors, your customers will expect enhanced features for safety and convenience.
Find the best connectors for your project.
This simplest connector version has no side panels. Open variants can be positioned next to one another without a loss of poles (end-stackable). Two 2-pole connectors can therefore be used to produce one 4-pole connector on the printed circuit board. The end-stackable design is flexible when producing very large numbers of poles on the printed circuit board.
Closed versions are used to prevent the plug being incorrectly inserted and to provide better dust protection. Ideally suited to prevent mismating.
The dovetail variant is closed and allows mounted blocks to be added. Our mounting options deliver all the flexibility you require.
For the classic screw option, each flange is paired with a nut for the screw in the flange plug counterpart.
If you only want to link connectors and plugs with a release latch and don’t want to fix them with a screw, this is the best solution. The clip-on flange provides the plug’s latching hook, with the contour needed to ensure a secure fix, which is easy to release later on.
For some OMNIMATE® Power series, alongside the classic flange versions located externally on the right and left of the male and female connectors, we also provide an innovative middle flange with a latching hook mechanism. This clever solution makes very simple and safe handling possible. The pin and plug can be securely fixed and released with just one hand. As an option, the clip-on flange, with an extra nut in the male connector, can also be screwed down to the plug. Variants with a solder pin for additional fixing on the printed circuit board are also possible.
For increased mechanical stability, you can also use a screw to fasten the flange connector to the PCB. An extra hole must be provided on the printed circuit board for the screws.
Solder flange rather than screw. For increased mechanical stability on the printed circuit board, an additional solder pin is integrated into the flange sides on the printed circuit board. This pin can be simply soldered during the soldering process. There is no need for any more screw connections.
The standard version—without additional flange or latch. To release, simply pull the plug. In most series, the plugs can be plugged next to one another, without a loss of poles.
The variant with a dovetail contour on the left and right is closed and if necessary, you can mount extra small fastening blocks (flanges) for installation. With little effort, you can therefore prepare versions which are both closed and feature a flange.
Plugs with flange have a screw on either end. This ensures secure fixing of the plug with the matching connector, with flange and nut. Increased safety means that no one can release the plug by mistake. In our OMNIMATE Power series, a latching hook provides secure retention. The screw can also be used for fastening purposes. The latch between the plug and pin can be released by simply pressing on both sides.
There is a lever on the right and left of the plug which can be easily moved by pressing with a screwdriver or fingers. Plug and pin are also automatically linked with just one click. Because of the lock mechanism, the plug cannot be released by mistake. Pulling forces are increased, for connectors with large numbers of pins in particular. However the release latch can be used to simply release the plug from the connector with flange, or from the housing without the wires having to be pulled. The plug can only be released from the pin by manually unlocking the release catch at the same time.
For some OMNIMATE® Power series, alongside the classic flange versions located on the right and left of the male and female plugs, we also provide an innovative middle flange. This clever solution makes very simple and safe handling possible. The pin and plug can be securely fixed and released with just one hand. To fix the components, either simply latch together or, for increased safety, you can also insert a screw through the latching hook.
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