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11kV Bolted Mining Coupler

Supplier: New Macey

New Macey has set out to completely re-design these couplers, with a combination of higher quality materials and modern technology.

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Two designs were developed, a stainless steel /bronze model for underground coal mines and a lighter marine grade aluminium version for non-flameproof applications. They both have the following features:

  • The new bronze coupler weighs less than 15kg, while the aluminium version weighs only 9.9kg;
  • Two handles are provided to more safely handle the coupler;
  • The couplers can safely deliver a continuous current of 800 amps, compared with the older versions that only used 150 to 425 amps;
  • Modern termination kits mean the couplers are fully re-usable and do not have to be compound filled;
  • Sockets are beryllium copper lamella designs instead of old split sockets for low heat rise and ease of insertion;
  • No soldering or connection crimping is needed, so assembly can be achieved with a knife and Allen keys; and
  • The couplers are waterproof to IP68, which means they can be fully submerged in water.

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