K-Tec Corporation's 'Shock-Block' plug-in earth fault circuit breakers are used by the Hollywood film industry to maintain safe electrical conditions on set during 'wet' filming operations or when filming outside on location. Indeed, the initial series of products won an Academy Award for scientific and engineering achievement for the K-Tec team.K-Tec chose Spelsberg aluminium enclosures for Shock-Block, not just for their lightness and strength, but because they met the high IP specification. The enclosures were supplied from the UK with a precise ready-milled aperture in the lid to receive K-Tec's sealed display panel. All the cable entry points are pre-drilled in the UK and the unit gets a special black finish before shipping.The Shock-Block unit is protected from the ravages of the set by an external 'roll cage', but the heavy-duty cable glands are mounted directly on the side walls of the Spelsberg unit, demanding high mechanical strength from the enclosure itself.