The Supra 16A IEC plug is an excellent value for money connector suitable for cables up to 11mm in diameter, with conductors up to 4mm2.
The large 16A connector is relatively rare, but is found on some high power amplifiers and mains blocks (etc).
The conductors are a 24k gold plated for long lasting tarnish free performance, and the rigid housing is made from a UV resistant polypropylene with a built in strain relief.
