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Nexans has extended its range of compact medium-voltage (MV) connectors with two T-shaped connectors designed for use with compact switchgear and transformers.

The M430TB connector is for use with higher voltages (up to 36 kV) and the M434TB connector is for higher currents (up to 1,250A).

Nexans’ T-shaped connectors create a compact connection solution, enabling two cables to be connected in the same space required for one cable using a traditional, non-compact connector.

As well as being suitable for applications where space is a limiting factor, the Nexans compact connectors also enable users to increase the capacity of an existing installation.

The M430TB and the M434TB are separable bolted connectors designed to connect polymer-insulated cable to wind-turbine equipment such as switchgear and transformers.

They can also be used for cable-to-cable connections with the appropriate mating parts.

A key design feature is the 3mm EPDM (Ethylene Propylene Diene Monomer) rubber conductive insulation jacket that provides a safe-to-touch screen for personnel safety.

The M430TB connector is suitable for voltages from 12 to 36kV and cable cross-sections from 35 to 300mm2 (12 and 24kV), and 50 to 240mm2 (36kV).

When used as a single connector it is 183mm deep, compared with 255mm for an equivalent non-compact connector.

For double-connection, the epoxy insulating plug can be replaced by the 300PB coupling connector, enabling two cables to be connected in a depth of 290mm, compared with 500mm for a non-compact version.

The M434TB connector is also 183mm in depth but is intended for larger cross-section cables that will be required to carry the currents produced by a new generation of larger turbines, especially in offshore applications.

For voltages from 12 to 36kV, the M434TB can be used with cable cross-sections from 185 up to 800mm2.

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