Question & Answers

The standard DIN EN/IEC 61439 replaced the standard 60439 at the end of 2014. The standard describes the design and test specifications for low-voltage switchgear and control gear assemblies. The standard defines the safety requirements for devices that are used to distribute electrical energy in industry, in private households and on construction sites. The standard guarantees a higher safety standard and is used, for example, for energy distributors, switchgear and distribution cabinets. More information can be found here

Rising temperatures can result in the formation of condensation in receptacle combinations. Special membrane screw connections for protection type IP 67 enclosures ensure an exchange of air and prevent evaporation. In practical application, feeding from below has proven to be effective.

7-pin plugs and sockets can be used, for example, to regulate, control and monitor devices in industry, agriculture and the trade. To this end, see also page 76-78 of our Industrial plugs and sockets catalog. Our 7-pin plugs and sockets can be found here.

We would be happy to supply you with Cepex wall-mounted receptacles as a surface-mounted or flush-mounted version with a factory-fitted labeling field on request.

Yes. You are welcome to request a test report when you place your order. It is then included in the ordered receptacle combination package. If the receptacle combination was ordered without a test report, you can still request one by stating the approval number.

If a three-phase motor runs in the incorrect direction, our phase inverter products solve the problem quickly and safely. Use a screwdriver to release the lock and turn the insulating section with the two phase pins - the motor will now run in the opposite direction. More information

The colour of a product relates to the nominal operating voltage. Our plugs and connectors are available, for example in Red, Blue, Yellow, Green and Black. You can find an overview of the colour codes and what they relate to at: more information

Yes, for 63A and 125A receptacles and plugs and connectors, this can be done with a so-called pilot contact switch or a PCS (PilotContactSwitch). (Pay attention to the “P” index for the part number)
Pilot contact: this involves another sleeve being added to the internal wiring, which uses the standard pin on the plug to establish a lagging connection.
PCS: this involves a switch being installed in the internal wiring. It is a normally open contact with no potential, which is mechanically provided with a lagging current via the pin in the plug.
In both cases this has to be requested when ordering; retrofitting is not possible.
With some types of 16-amp and 32-amp receptacles it is possible to install an auxiliary switch: part no. 41000 (retrofitting possible). Relevant appropriate receptacles are listed in the MENNEKES catalogue.

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The maximum cross-section of a pilot pin is 4mm².