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Deutsch metal HD30 Series provides quick and easy coupling and cost effectiveness with heavy duty terminations for the truck, bus and off-highway industries. The HD30 is a heavy duty rated, environmentally sealed, and multi-pin connector that uses a bayonet coupling system to provide a vibration resistant locking mechanism. These rugged connectors with seals fabricated from tear resistant, high temperature silicone, and a rear grommet, protect the contacts from moisture, sand, dust, lubricating oils, fuel, road salt, hydraulic fluid, grease, mud and other contaminants encountered in heavy duty operations.