APD series was originally designed for the transportation, off-road and special vehicle markets along with military and industrial applications that require harsh environment solutions while needing a product that is both, small in size and light in weight. Some of applications where APD connectors are currently being used in are: cargo lifts, on board kitchens, power supply for antennas and base stations, power distribution in electric / hybrid vehicles, lighting systems on trucks and trailers, magnetic switch controls, brake controls (ABS), traction / skid controls, valve controls for water, oil, air, and pressure. truck, bus, and tractor motor control units, transmissions, chassis wire-to-wire and vabin pass through, instrumentation, and industrial automation.