Push-in connection technology (EC/ED/EFxxxx)

In the case of EC/ED/EFxxxx series terminals with push-in connection technology, solid conductors fitted with wire end ferrules can be plugged in directly without tools (see "Wiring" section).

Ultrasonically compacted strands Ultrasonically compacted (ultrasonically welded) strands can also be connected. Please note the information on the connection cross-section in the table housing data in the chapter Technical data of the relevant device!

Fig.17: Tool-free push-in connection; housing types ED-12-8pin, ED-12-16pin and EF-12-8pin

The following connection options are available for optimum adaptation to the application:

• The terminal blocks of the EC/EDxxxx series contain electronics and connection level in one housing.
• The terminal blocks in the EFxxxx series have a pluggable connection level. In the case of service, the pluggable connection level allows the entire wiring to be removed from the top of the housing as a single plug. This reduces the installation time and eliminates the risk of wires being mixed up. The plug is only slightly protruding (for dimensions, see Technical data -> Housing data of the corresponding product).
  Installation and wiring are carried out as for the EDxxxx series terminals.
  Proceed as follows when replacing:
• Press the unlocking hub and pull the lower part out of the terminal block.
• Push in the component to be replaced and plug the connector with the upright wiring back in.

Strain relief of the cable A tab for strain relief of the cable simplifies assembly in many applications and prevents entangling of the individual connection wires when the connector is pulled.