2000V Solar Connector Expands Amphenol Industrial Operations’ H4 Plus™ Family

2000V solar connector capability comes to Amphenol Industrial Operations’ established H4 solar connector platform with the introduction of the H4 Plus™ P2KV. Designed for next-generation photovoltaic systems moving beyond conventional 1500V architectures, the new connector supports 2000V DC operation and 6 AWG (16 mm²) photovoltaic cable for higher-power solar and energy storage applications.

The H4 Plus™ P2KV is a 2000V solar connector designed for next-generation utility-scale photovoltaic and energy storage systems. It expands the proven H4 platform to help engineers, EPCs and system developers address increasing string voltage, higher power levels and longer cable runs while maintaining dependable electrical performance and environmental protection. The connector is designed for utility-scale solar installations, commercial photovoltaic systems, combiner boxes, compatible inverter interfaces and solar-plus-storage infrastructure.

Expanding the H4 Solar Connector Platform

Amphenol Industrial Operations’ H4 connector family has supported photovoltaic installations across multiple generations of solar system design. The addition of the H4 Plus™ P2KV gives customers a new option specifically developed for emerging 2000V DC architectures while building on Amphenol Industrial Operations’ broader solar connectivity portfolio.

As photovoltaic projects increase in scale, higher system voltage can allow designers to place more modules within each string and transmit greater power through the DC collection system. Depending on the overall system architecture, these changes can reduce the number of parallel circuits and associated balance-of-system components required throughout an installation.

2000V Solar Connector for Higher-Power PV Systems

The H4 Plus™ P2KV is rated for 2000V DC photovoltaic applications and is designed around 6 AWG / 16 mm² PV cable. It supports rated current levels of 65A under ETL certification and 70A under TÜV certification at 85°C, helping address the electrical requirements of larger and increasingly powerful solar installations. UL 6703 provides requirements for connectors used in photovoltaic systems.

A typical contact resistance of ≤0.25 mΩ helps maintain a low-loss electrical interface across the connection. This becomes increasingly important in utility-scale photovoltaic systems, where dependable connector performance across large numbers of interconnect points can contribute to overall system efficiency and long-term energy production.

Designed for Demanding Outdoor Environments

Solar connectors must maintain electrical and mechanical performance through years of exposure to changing temperatures, moisture and ultraviolet radiation. The H4 Plus™ P2KV provides IP65 and IP68 environmental protection when properly assembled and mated and IP2X protection in the unmated condition.

The connector uses UV-resistant thermoplastic materials with a UL94-V0 flame classification and operates across an ambient temperature range of -40°C to +85°C. It is also RoHS and REACH compliant, supporting the environmental and reliability requirements associated with modern photovoltaic infrastructure.

Supporting Field and Preassembled Installation

The H4 Plus™ P2KV is available in both field-installable and preassembled configurations, giving module manufacturers, harness suppliers, EPCs and installation teams flexibility in how connections are incorporated into a photovoltaic system.

Dedicated stripping, crimping, torque, inspection and unlocking tools support controlled and repeatable installation. Correct cable preparation, crimping, torque and mating remain critical to maintaining low electrical resistance and environmental sealing throughout the service life of the system.

2000V Solar Connector Applications

The new 2000V solar connector is intended for high-voltage DC connection points throughout modern photovoltaic and energy storage architectures. Typical applications include utility-scale solar farms, commercial photovoltaic installations, module string connections, combiner and junction box interfaces, compatible inverter DC inputs and solar-plus-storage systems.

• 2000V DC photovoltaic systems
• 6 AWG / 16 mm² PV cable
• 65A ETL and 70A TÜV rated current at 85°C
• Typical contact resistance of ≤0.25 mΩ
• IP65/IP68 protection when properly mated
• IP2X protection when unmated
• Field-installable and preassembled configurations
• UV-resistant, UL94-V0 construction
• RoHS and REACH compliance

Building for the Next Generation of Solar

Moving photovoltaic architectures from 1500V toward 2000V creates new requirements throughout the DC power path. By combining 2000V DC capability, 6 AWG conductor support, low contact resistance and rugged environmental protection, the H4 Plus™ P2KV gives solar system designers another option for developing higher-power installations while remaining within Amphenol Industrial Operations’ established H4 connectivity platform.

Application-level analysis indicates that higher-voltage system architectures may also help reduce resistive line losses and balance-of-system requirements compared with conventional 1500V designs, depending on the complete electrical configuration.

Frequently Asked Questions About 2000V Solar Connectors

Learn More About the H4 Plus™ P2KV

Visit the H4 Plus™ P2KV product page to review specifications, application information and available resources for this new 2000V solar connector. Contact Amphenol Industrial Operations to discuss cable compatibility, installation tooling or product selection for your next photovoltaic or energy storage project.