Douglas Electrical Components provides hermetic feedthroughs and compressor terminal seals engineered for demanding air conditioning and refrigeration applications. Designed to carry currents ranging from 10 to over 1,000 amps, these feedthroughs are used globally in compressors spanning from fractional horsepower systems to large industrial chillers and screw compressors.

The hermetic terminal seals are built to withstand high-pressure and high-power operating environments while maintaining reliable electrical isolation and sealing integrity. Multiple feedthroughs can also be integrated into consolidated plate assemblies, helping simplify installation while reducing threaded connections and potential leak paths in larger compressor systems.

Douglas offers standard NPT and SAE configurations as well as fully customized terminal seals integrated directly into customer housings, flanges, or threaded interfaces. Unlike semi-hermetic alternatives, Douglas manufactures complete hermetic packages designed for long-term durability and system protection.

In addition to power feedthroughs, Douglas manufactures hermetic wire and cable feedthroughs for signal transmission and instrumentation applications. Assemblies can be configured with standard wires, jacketed cables, integral connectors, or custom-machined components to meet OEM specifications. For refrigeration systems operating in hazardous environments such as natural gas compressor applications, explosion-proof feedthroughs are available to meet applicable industry standards.

Hermetic bulkhead connector assemblies simplify OEM integration by allowing connectors from virtually any manufacturer to be incorporated into a sealed assembly. These solutions help protect electronics, sensors, and control systems from moisture, condensation, icing, and electrical shorts commonly found in refrigeration environments.

Douglas also supports the growing use of fiber optics in HVAC and refrigeration systems through hermetic fiber optic feedthroughs and connector assemblies that enable reliable signal transmission while maintaining system sealing integrity.