The E-T-A group of companies, which was founded in 1948, manufacturers a wide range of circuit breakers for component, equipment and systems protection. E-T-A high performance circuit breakers are specially designed for use in hostile environments and technically challenging applications where size and weight considerations should not be allowed to compromise optimum performance. These types encompass a range of current ratings from 0.1amp to 500 amps and are widely specified to protect the electrical systems of aircraft (fixed wing and helicopters, military and civil), ground equipment, hovercraft, fighting and support vehicles, pleasure and work boats, defence systems and many industrial installations with rigid performance and environmental requirements. Major approvals/listings include CAA (A1 Primary Company and Component Approval), fighting vehicle numbers, DefStan 59-59, UL 1500 (explosion tested), Panavia. ISO9000.