NMEA 2000 connectors are typically available in plastic or metal versions, the choice of material depends on your specific needs and installation environment. Here are some comparisons between the two:
Plastic connector:
Lightweight: Plastic connectors are generally lighter than metal connectors, which helps reduce the weight of the entire system.
Lower price: Plastic connectors are generally less expensive than metal connectors, so they may be an option for those on a budget.
Corrosion resistance: Plastics are not damaged by corrosion and therefore may be more durable in environments with a higher risk of corrosion.
Metal connector:
Durability: Metal connectors are generally stronger and more durable and can withstand greater physical pressure and extrusion forces.
Resistance to UV radiation: Metal connectors are generally more resistant to UV radiation, which may be important in outdoor installations.
Sealing performance: Metal connectors are generally easier to achieve good waterproofing and sealing performance, and may be more suitable for underwater equipment.
Your choice should take into account the installation environment, type of equipment, and requirements for durability and cost. If your device will be used in a harsh environment or needs to withstand significant physical stress, then metal connectors may be more suitable. Otherwise, plastic connectors may be a more economical and practical option.
