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The contact inserts and contact carriers are made from glass fibre-reinforced plastic and can accommodate from 3 to 280 contacts. They are suitable for temperature ranges from -40°C to +125°C (special design up to +180°C) and are differentiated in terms of their connection technology into crimp, screw, push-in and IDC connections.

Connection types

Crimp connection 0,5 - 4 mm²


The cable and contact are perfectly coordinated with each other. The crimping tool is also adjustable to the cross-section of the cable, ensuring that an even electrical connection is established every time.

The gas-tight crimping site prevents the ingress of oxygen to the current transition point, thereby avoiding any corrosion and ensuring a constantly low transition resistance.

Crimp connections can be created semi-automatically by hand or fully automatically.

  • Crimp contacts without catch springs - the catch spring is mounted in the contact carrier
  • Crimp contacts with catch springs - the catch spring is mounted on the contact

Screw connection 0,5 - 2,5 mm²


The screw connection with wire protection prevents the deviation and shearing of individual wires in a stranded cable.

The screw connection without wire protection is used for installations with pre-fabricated cables featuring pin cable lugs or crimped-on wire end sleeves.

The screw connection is very servicing-friendly and is therefore the most commonly used. The quality of the connection, however, depends greatly on the care of the user. Powerful machine vibrations can also influence the quality of the screw connection.

All screw contacts from WALTHER-WERKE have open, undetachable screws.


Insulation displacement technology 0,5 - 2,5 mm²


When used with insulation displacement technology, the as yet un-isolated cable is simply plugged into the pre-opened contact socket and the slider with slide meter levered shut using a screwdriver.

By doing away with the isolation, pulling-up of the wire end sleeves and screw connections, the time saving during installation can be as much as 60%.

The inserts with insulation displacement technology are compatible with screw and crimp contact inserts from the B series. In addition to the conventional encoding types, simple, inexpensive plug-in encoding can also be carried out at the insert.

Push-in connection 0,5 - 2,5 mm²


The inserts with push-in connection have a square cable inlet (not rectangular), which means that the cable can be introduced in any way.

Flexible wires with wire end sleeves or rigid wires can be plugged directly into the push-in contact inserts without any tools. 


The use of coding elements prevents confusion of the same connectors.

Encoding part

The pin contact opposite the encoding part is unoccupied.

Plug-in encoding

Encoding part for pushing into the encoding grooves of the push-in and insulation displacement inserts of the B series.

Encoding pin

Encoding pins are applied instead of fastening screws.

Guide pins and sockets

Guide pins and guide sockets largely prevent any angled standing or pulling of the connector.