Log in to use our free company, program and sector update tracker feature.

Front page

Leach SPDU series provides advanced circuit protection using next-generation SSPC technology

A microprocessor-controlled Secondary Power Distribution Unit (SPDU), featuring multi-channel, next-generation Solid-state Power Controllers, has been released by an Esterline Corporation component and equipment manufacturer Leach International.

Designed to distribute 28Vdc power to aircraft loads and provide protection for the wiring, Leach SPDUs can receive input power from multiple sources and control loads based on commands received through the data bus or by discrete signals.

The SPDU Series features multiple programmable SSPCs (shown are 6 channels rated up to 10 Amps at 85°C and 22 channels rated up to 5 Amps at 85°C) with standard dual redundant power supplies and a standard dual redundant data bus. Control options include data bus, discrete signal or manual push buttons, and the extensive built-in testing (BIT) takes place at startup, runs continuously and also can be initiated when desired.

These lightweight units (approximately 6.75 lbs.) benefit from the many features of Leach SSPCs, which include low voltage drop and power dissapation, backup wire protection, and optional arc fault protection. Plus, by eliminating connectors, junction boxes, wires, circuit breakers and other components, Leach SSPCs dramatically reduce wire volume while improving accuracy, repeatability and arc fault protection.

Featuring a flexible architecture to meet a variety of requirements, Leach SPDUs can accommodate different power inputs and numbers/ratings of SSPCs. In addition, a variety of data bus types is available, including MIL-STD-1553B, ARINC 429, ARINC 485, RS-232 and CAN Bus.

Press release issued by Esterline Power Systems on July 17, 2006


 Contact details from our directory:
Esterline Power Systems Solid-State Switches, Instrument Panels, Relays, Power Distribution Equipment, Mechanical Switches


 Related directory sectors:
Electrical Components

Enhanced listings:

Valence Surface Technologies
The leading metal processing company serving the global aerospace industry. Valence’s ten facilities offer full-service capabilities: NDT, shot peen, chemical processing, paint, and other coatings.

Reduce the time spent on current projects by using ESDU – engineering data and software that have been approved and endorsed by professional institutions.

Victrex Plc
New VICTREX® AE250 composites and hybrid molding technology are changing the equation in Aerospace composites – find out more!

Belden Universal
Specialty universal joints and drive shafts, designed to satisfy even the most rigorous operating criteria. Belden Universal is AS9100C certified.

The leading provider of heat treatment services worldwide. Bodycote offers high quality, reliable and cost-effective services to manufacturers whatever their size or market sector.

See our advertising tariff.


Monthly page limit exceeded. Please buy a subscription.

© Copyright of Airframer Limited, operated under licence by Stansted News Limited 2016. Terms & Conditions of reading.