Leach International, a subsidiary of Esterline Corporation, was founded in 1919 and designs and manufactures a broad range of high-reliability power switching and control components and equipment for aerospace, rail, and high-end industrial applications.  Leach specializes in combining its leading-edge components with unique design and manufacturing capabilities to provide custom AC/DC power distribution assemblies such as primary and secondary power distribution assemblies, relay and central warning panels, GFI units, thrust reverser control units, ELCUs and smart contactors, integrated assemblies, windshield anti-ice controllers and weapon release boxes.

Products includeEsterline Power Systems / Leach International:

  • MIL and CECC qualified subminiature relays, GFI relays and time delays
  • AC/DC contactors including ELCUs, 270Vdc high voltage contactors and smart contactors
  • Solid state power controllers and related assemblies
  • Illuminated panels, indicators and keyboards
  • AC/DC primary and secondary power distribution assemblies, panels and relay boxes
Esterline Power Systems / Leach International
Esterline Power Systems / Leach International

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Technical Articles

270-Volt DC Contactor Solves Costs vs Performance Problems (Relays and Relay Accessories) Aircraft requiring greater electrical power for an increasing number of critical electrical loads are employing 270Vdc power. But to make, break or change the connection of electric circuits for the... (View Full Article)
Ground Fault Protection (.pdf) (Relays and Relay Accessories) The wear and tear of wiring harnesses can create a safety issue in commercial aircraft, particularly in the aging ones.However, an approved and proven technology exists that can detect and isolate the... (View Full Article)