High Power Connectors

Amphenol high power connectors lead the way with modern high-powered electric-driven technology in a world that’s trending toward more electric power. As the world pivots toward the electrification of everything, global industries require connectors that can reliably and safely facilitate high currents and high voltages to power today's and tomorrow’s cutting-edge technologies such as electric military ground combat vehicles and electric vertical take-off and landing (eVTOL) aircraft.

Product High Voltage 38999
High Voltage 38999
An expansion of the MIL-DTL-38999 series to provide solutions for next-generation power requirements.
Product Voltarius
Voltarius is a high-power interconnect system optimized for high voltage applications, with performance up to 1000Vdc and 450A along with essential safety features.
Product High Power 38999
High Power 38999
MIL-DTL-38999 Series III connector with RADSOK®, Temper-Grip, or standard high power contacts to accommodate requirements for 500+ amps.
Product High Power 5015
High Power 5015
Features proven RADSOK® technology along with the high current, high temperature Temper-Grip to provide a solution for any operating temperature.
Product Ram-Lock with High Power Contacts
Ram-Lock with High Power Contacts
Amphenol’s Single Pole Ram-Lock connector is a ruggedized push-pull connector designed for applications up to 500 °F (260 °C)
Product Matrix 38999
Matrix 38999
A hybrid of the High Power Matrix 5015 series and D38999 military connector, Amphenol's High Power Matrix 38999 connector uses mil-spec qualified inserts from the Matrix 5015 and combines them with the mechanical interface of the D38999 to bring you the best of both worlds.
Product MIL-DTL-5015 (Matrix)
MIL-DTL-5015 (Matrix)
This crimp, rear-release high-power series provides an improved alternative to the older MIL-C-5015 solder type.
Product MGT-5015 Reverse Bayonet Coupling
MGT-5015 Reverse Bayonet Coupling
An expansion of the GT-5015 series, offering a rugged environment connector in new finishes such as Durmalon and Black Zinc Nickel for military applications.
Product Class L Connectors
Class L Connectors
Amphenol Class L 22992 high-power, heavy duty electrical connectors are designed for high-current electrical loads and are the largest cylindrical Amphenol power connectors available. Class L heavy duty connectors are ruggedized and designed for high power military and industrial applications that need maximum reliability.
Product Commercial Class L
Commercial Class L
Amphenol Commercial Class L heavy duty power connectors are the commercial equivalent of the MIL-DTL-22992 qualified connectors.
Product QWLD Connectors
QWLD Connectors
QWLD Series heavy duty electrical connectors provide reliable power and control functions in hostile environments where ordinary connectors cannot survive.
Product QWL Connectors
QWL Connectors
Designed for demanding use, Amphenol QWL cylindrical power connectors are compact and ruggedized for a variety of land and sea functions.

High Voltage Connectors

The High Voltage 38999 Series was developed as a solution for all-electric power requirements on commercial aircraft and urban air mobility vehicles, or eVTOLs. They are rated for up to 1200 VAC / 1500 VDC* to remain partial discharge free at 50,000 ft. Standard D38999 Series III shells are used and Dualok plugs are available for increased shock and vibration performance.

Product High Voltage 38999
High Voltage 38999
An expansion of the MIL-DTL-38999 series to provide solutions for next-generation power requirements.
Product HVDC
HVDC is a low mating force, high mating cycle connector that achieves enhanced performance due to multiple points of contact vs. standard 2 or 4 tine contacts.
Product Ram-Lock with High Power Contacts
Ram-Lock with High Power Contacts
Amphenol’s Single Pole Ram-Lock connector is a ruggedized push-pull connector designed for applications up to 500 °F (260 °C)

High Power Interconnect Solutions

Amphenol Aerospace has led the connector industry with military and aerospace power distribution connector solutions for decades. Whether it’s helping to power military ground vehicles, military and commercial aircraft systems, or the latest space launch vehicles, Amphenol Aerospace has been at the forefront of connector innovation and development. As we move beyond the current mil-spec standards to more custom, high-power needs, our connector designs and solutions have continued to evolve as the demand for more power increases.

High Voltage and Current Requirements Are Not Going Away

In fact, they’re only going to continue growing.


As mission requirements become more diverse and demanding, military and aerospace systems are being designed to handle a wider range of tasks. This versatility often results in the integration of additional subsystems and technologies, driving up the complexity and power consumption of systems.

Advancements in sensor technologies, data processing needs, electronic warfare integration, communication demands, propulsion electrification, energy efficiency considerations, challenges in miniaturization, and the pursuit of expanded mission capabilities are all factors driving up power consumption. Higher voltages are being employed at greater scale to transmit power over longer distances with minimal loss, with increased current necessary for delivering more power to various components.


Connectors that can facilitate power distribution requirements beyond what standard circular power connectors are capable of are essential in new military and aerospace development, especially with the push toward electrification and hybrid-electric platforms.  

High Volts, High Amps

As electrification technologies continue advancing, high voltage and amp considerations need to be considered. The evolving landscape of hybrid-electric and fully electric applications in commercial and military industries requires tailored voltage and amp specifications for optimal performance.


Next-generation electrification applications require interconnect systems with material and design enhancements that allow them to safely accommodate high voltage and high-amp power systems operating at a variety of temperatures and altitudes. Striking this balance is essential for the integration and scalability of future electrification technologies.


high power connectors voltage guide


Ruggedized Power Connectors for Any Application


Amphenol Aerospace’s versatile high-power connector series offers a wide selection of options. They feature our proven Matrix 5015 and GT-5015 interfaces with a variety of tooled insert arrangements to ensure capability with any ruggedized high-power application.


High Power Key Features
Enhanced Performance: Achieve 40-50% increased current carrying capability compared to standard 5015 connectors.
Versatile Coupling: Choose between threaded or bayonet coupling options to suit your specific needs.
Swift Customization: Expedite design-in time with catalog customization options.
Compatibility: Seamlessly integrate with existing cabling designs using standard interfaces in scenarios requiring high performance.
Reliability in Harsh Environments: Ensure superior performance in demanding conditions with gold-plated contacts.


Customer Options
Contact Termination Methods: Select from crimp, male and female threaded termination, solder, PCB, and bus-bar options.
Environmental Resilience: Choose epoxy backfilled options to enhance environmental performance.
Advanced Socket Contacts: Leverage low resistance RADSOK® technology and TEMPER-GRIP contacts for high current carrying capability at temperatures exceeding 200°C(392°F).
Versatile Configurations: Choose from more than 25 tooled insert arrangements for a current carrying capacity ranging from 50 to nearly 1000 amps per connector.
Advanced Plating: Explore standard and proprietary plating options, including RoHS/Reach-compliant Durmalon and Nickel Teflon plating capable of withstanding 500 hours of salt spray exposure.
Tailored Solutions: Contact the factory for quick-turn custom designs addressing specific mechanical or electrical requirements.


Other Key Features
Shock Resistant:
  • Wired, mated connectors undergo one shock in each of three mutually perpendicular axes.
  • Pulse of an approximate half sine wave with 50g magnitude for 11 milliseconds.
  • All contacts wired in series circuit with 100 ±10 Milliamperes of current flow.
Operating Temperature Range:
  • Classes RF, RL, and RK: -55°C (–75°F) to 200°C (392°F).
  • Classes RW, DT, & DZ: -55°C (–75°F) to 175°C (347°F).
Environmental Seal:
  • Wired, mated connectors with environmental accessories meet the altitude immersion test specified in MIL-DTL-5015.
  • Backfilled connector options offer increased sealing in the unmated condition.
  • Minimum of 100 mating cycles.
  • For higher durability, RADSOK® contacts are recommended.



  • Hybrid-Drive/Electric Vehicles
  • Electric Vertical Takeoff and Landing (eVTOL) Aircraft
  • Next-Generation Electric Commercial Aircraft
  • Laser Power Systems
  • Ruggedized Power Converters
  • Power Distribution
  • Fast Charging
  • Battery Connections
  • And More

See our Product Configurator for available drawings and 3D models.