H4 Plus™ Cu-Al PV Connector | Compatibility of Aluminum and Copper

Amphenol Industrial Operations introduces the H4 Plus™ Cu-Al PV Connectors, an advanced solution focused on the compatibility of aluminum and copper in solar photovoltaic (PV) systems. As copper costs rise, aluminum has become an economical alternative; however, mixed-metal connections present unique challenges. The H4 Plus™ Cu-Al connectors are specifically engineered to support compatibility between aluminum and copper cables, addressing critical issues like conductivity differences, thermal stress, and safety. These connectors provide high performance, durability, and are compatible with the existing H4 connector family.

Key Features

• Mixed-Metal Compatibility of Aluminum and Copper: Designed to ensure robust connectivity between aluminum and copper cables in PV systems, maintaining performance and system integrity.
• Low Contact Resistance: Achieves minimal power loss with a typical contact resistance of ≤0.30mΩ, enhancing energy efficiency across aluminum-copper connections.
• High-Performance Locking System: The secure snap-lock mechanism ensures reliable connectivity in diverse conditions, without needing additional tools.
• Durability in Harsh Environments: Withstands UV exposure, temperature extremes, and moisture with an IP68 rating when mated, providing long-lasting aluminum-copper compatibility.
• Flame-Retardant: Constructed with UL94-V0 rated materials, meeting stringent safety standards.
• Ease of Installation: Tool-free setup enables rapid installation, reducing labor and complexity while ensuring secure aluminum-copper connections.

Applications

The H4 Plus™ Cu-Al PV Connectors are ideal for solar power installations utilizing aluminum cables due to cost and weight benefits, ensuring compatibility with copper-based systems:

• Utility-Scale Solar Farms: Large projects where the economic advantage of aluminum and copper compatibility is particularly beneficial.
• Commercial and Industrial Rooftop PV Systems: Smaller systems benefit from aluminum’s lightweight properties, easing installation on rooftops.
• Remote and Harsh Environmental Installations: Robust aluminum-copper connectors designed for high UV exposure and temperature variations.

Specifications

• Rated Voltage: 1500V DC
• Rated Current: 35A for 10AWG (6.0mm²), 45A for 8AWG (10.0mm²)
• Withstand Voltage: 8KV DC
• Rated Impulse Voltage: 16KV DC
• Typical Contact Resistance: ≤0.3mΩ
• Insulation Material: Thermoplastic (PA)
• Contact Material: Tin-plated copper and aluminum
• Connection Type: Crimping
• Protection Rating: IP65/IP68 when mated, IP2X unmated
• Flame Class: UL94-V0
• Cable OD Range: Ø6.5mm ~ Ø8.8mm
• Temperature Range: -40°C to +85°C, with a max limit of 115°C
• Pollution Degree: 2
• Safety Class: Class II

Why Choose H4 Plus™ Cu-Al PV Connectors?

The H4 Plus™ Cu-Al PV Connectors offer a range of benefits for solar project managers, installers, and maintenance teams focused on achieving reliable compatibility between aluminum and copper:

1. Cost Efficiency Without Performance Compromise: Aluminum cables lower material costs, supporting large solar projects on budget while maintaining compatibility and performance in aluminum-copper setups.
2. Enhanced Safety and Longevity: Engineered for optimal aluminum and copper compatibility, these connectors address conductivity and thermal management, reducing the risk of overheating and extending the lifespan of mixed-metal connections.
3. Robust Environmental Design: IP68 rating and UV and flame-resistant materials ensure these connectors perform reliably under extreme conditions, crucial for outdoor solar applications.
4. Ease of Installation and Maintenance: The tool-free locking system simplifies setup and minimizes labor, while compatible accessories aid in maintaining aluminum-copper connections.
5. Seamless Compatibility and Versatility: Fully compatible with the H4 connector family, the H4 Plus™ Cu-Al connectors offer flexibility in system design, allowing a shift to cost-effective aluminum cables while preserving copper connectivity.

The H4 Plus™ Cu-Al PV Connectors are a forward-looking choice, facilitating the compatibility of aluminum and copper cables to optimize costs while preserving the high performance and reliability synonymous with Amphenol Industrial Operations.