Terminal boards and shunts

For a compliant and trouble-free marine electrical system, choose terminal blocks and junction boxes tested for the harsh marine environment, available at Nautica Basile. Vibration, saltwater, and temperature fluctuations put extreme stress on electrical connections. A loose connection can cause a complete blackout of your onboard instruments, compromising safety and comfort at sea.

We stock IP67 waterproof terminal blocks, insulated bus bars, and ANL fuse holders to protect your most sensitive equipment. A selection of screw-type and spring-clamp (WAGO) terminals are available for wires from 0.5 mm² up to 6 mm². We also carry terminal blocks with crimp connectors, perfect for robust, vibration-resistant connections. Scopri i nostri morsettiere per scatole di derivazione elettriche, ideali per centralizzare i collegamenti in modo organizzato e sicuro.

Important: Always verify the wire gauge and the maximum current rating of the terminal block (expressed in Amps). Undersizing can cause overheating and, in the worst case, a fire onboard. Always use high-temperature, single-core marine cable and pre-insulated cable lugs for a secure and durable connection. Remember to protect each circuit with appropriately sized fuses.

Basile Workshop Tips

• Fast Shipping: Orders received before 12:00 ship the same day.


• Certified Products Only: Terminal blocks and junction boxes from official distributors (Osculati, WAGO).


• Technical Support: Questions about compatibility? Call us, a technician is available.

Complete your electrical system with protective fuses and high-temperature single-core marine cable. For larger wire sizes, consider using pre-insulated cable lugs for a secure and long-lasting connection. For added protection, consider using waterproof electrical boxes to house the terminal blocks in environments particularly exposed to moisture and saltwater.

Frequently Asked Questions

Can I use these electrical terminal blocks to connect batteries in parallel?

It depends on the inrush and operating current. For high currents (over 100A), it is advisable to use an insulated bus bar with ring terminals, sized for the maximum current of the battery bank. Always check the technical specifications and consult a qualified electrician for proper sizing.

What is the difference between screw terminals and spring-clamp terminals (WAGO)?

Screw terminals offer a robust and durable connection, ideal for larger gauge wires and applications that require high vibration resistance. Spring-clamp terminals (WAGO) are quicker to install and suitable for smaller gauge wires, typically used for lighting circuits and instrumentation. Both types ensure a safe and reliable connection if installed correctly.

How do I choose the right electrical junction boxes for my boat?

Consider the number of circuits to connect, the wire gauge, and the maximum current that the terminal block will need to support. If in doubt, consult the electrical wire sizing chart and choose a terminal block with a safety margin of 20-30% on the maximum current. Also, consider the installation environment and choose an IP67 waterproof model if the terminal block will be exposed to moisture or saltwater.

Can I use these electrical connectors to connect solar panels to my boat's electrical system?

Yes, you can use these terminal blocks to connect solar panels to your boat's electrical system, but it is essential to choose a terminal block with a current rating appropriate for the power of the solar panels and the charging current of the charge controller. Also, make sure that the terminal block is resistant to UV rays and weather, especially if installed outdoors.

Can I use these electrical terminal blocks to connect batteries in parallel?

It depends on the inrush and operating current. For high currents (over 100A), it is advisable to use an insulated bus bar with ring terminals, sized for the maximum current of the battery bank. Always check the technical specifications and consult a qualified electrician for proper sizing.

What is the difference between screw terminals and spring-clamp terminals (WAGO)?

Screw terminals offer a robust and durable connection, ideal for larger gauge wires and applications that require high vibration resistance. Spring-clamp terminals (WAGO) are quicker to install and suitable for smaller gauge wires, typically used for lighting circuits and instrumentation. Both types ensure a safe and reliable connection if installed correctly.

How do I choose the right electrical junction boxes for my boat?

Consider the number of circuits to connect, the wire gauge, and the maximum current that the terminal block will need to support. If in doubt, consult the electrical wire sizing chart and choose a terminal block with a safety margin of 20-30% on the maximum current. Also, consider the installation environment and choose an IP67 waterproof model if the terminal block will be exposed to moisture or saltwater.

Can I use these electrical connectors to connect solar panels to my boat's electrical system?

Yes, you can use these terminal blocks to connect solar panels to your boat's electrical system, but it is essential to choose a terminal block with a current rating appropriate for the power of the solar panels and the charging current of the charge controller. Also, make sure that the terminal block is resistant to UV rays and weather, especially if installed outdoors.