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B&G

000-15683-001

Nemesis Hub

The Némésis HUB is the essential connection and power unit for the B&G Némésis display system. It centralizes the network and power supply to connect up to three displays via a single Ethernet cable, drastically simplifying installation at the mast or cockpit. Multiple hubs can be connected in series for larger configurations.

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£261.02 GBP

£261.02 GBP ~~£348.07 GBP~~

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Low stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

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Installers near you

thanks to our network of approved installers

Find an installer

Support service

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Technical specifications

Max power consumption	2 W + power distributed to displays
Typical power consumption	2 W
Amperage	6A
Code-barres du produit	000-15683-001
Catégorie de produit	Merchandise / NAVICO GROUP / 21 - B&G (40)
Display ports	3x 8-pin Ethernet connectors
Ethernet ports	1x 8-pin connector
Fuse rating	6
Ground	1x M4 Grounding
Hub Max Display Support	3
Installation Benefit Cable Reduction	Simplifies wiring by requiring only a single cable for power and Ethernet network.
Interconnect cable length	0.6
Indicateurs LED d'état	Power (PWR), network (ETH), screen activity (Display 1-3)
Nemesis compatibility	Yes
Poids net du produit	240
Operating temperature	-20°C to +60°C
Operating temperature range	-20 to +60
Operating voltage	12/24 V DC
Operating voltage range	10 - 31.2
Poids emballé	1.2
Power supply	12/24
Product use	Central connection unit for Nemesis display system
Product type	Nemesis (HUB) Center
Variant count	1
Series connection	Yes
Storage temperature	-15°C to +55°C
Storage temperature range	-15 to +55
IP rating	IPX6 and IPX7
Wired network	Ethernet, NMEA 2000

Detailed description

The B&G Nemesis hub is a network switch designed to centralize power and data for your navigation displays. It allows you to connect up to three Nemesis multifunction displays (9 or 12 inches) via a single main cable, reducing wiring clutter aboard, whether for mast mounting, in the cockpit, or at the helm.

Positioning the Nemesis hub in the B&G ecosystem

Unlike traditional installations requiring individual cable runs for each display, as seen in B&G Triton² or H5000 series, this hub acts as a dedicated switch for the Nemesis range. Compared to competing solutions like the Garmin GMS 10, which is limited to data transfer, the Nemesis hub simultaneously distributes network data (Ethernet) and electrical power to connected displays. This enables synchronization of navigation data, graphical gauges, and contextual modes (close-hauled, broad reach, running downwind) across multiple screens with minimal latency.

Electrical characteristics and connectivity

This unit integrates with 12 V and 24 V DC electrical systems, with an operating voltage range of 10 to 31.2 V DC. Its own power consumption is 2 W, plus the power distributed to displays (up to 60 W maximum). The unit includes reverse polarity, undervoltage, and overvoltage protection, secured by a recommended 6 A fuse. The interface features an 8-pin connector for main power and Ethernet, three 8-pin Ethernet connectors for displays, and an M4 grounding terminal. LED indicators provide status for power (PWR) and data transfer (ETH and ports 1 to 3).

Environmental resistance and installation

Designed for exposed marine environments, the hub meets IPX6 and IPX7 protection ratings, ensuring water resistance against spray and temporary immersion. It operates within a temperature range of -20 °C to +60 °C (storage tolerated from -15 °C to +55 °C). The unit weighs 240 g, with a total packaged weight of 1.2 kg. The device ships with mounting hardware, a 0.6-meter interconnection cable for plug-and-play display connection, and blanking plugs to protect unused ports.

Expert opinion

Pol CONIN

Digital Manager

« Simplification and robustness for your Nemesis displays »

The Nemesis hub is the cornerstone of a clean and reliable B&G display installation. Its centralized design solves the classic problem of running multiple cables through the mast or console by consolidating power and Ethernet data into a single stream. The ability to daisy-chain multiple hubs provides valuable scalability for large sailboats or multi-station cockpits. Its IPX6/IPX7 waterproof rating and robust connectors ensure flawless performance, even in the most exposed installations. The status LEDs are a simple but crucial detail for quick on-site diagnostics.

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Nemesis Hub

£261.02 GBP

£261.02 GBP ~~£348.07 GBP~~

Frequently Asked Questions

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What is the B&G Nemesis Hub (HUB) used for?

The Nemesis Hub is a central unit that simplifies the installation of the Nemesis display system. It centralizes power supply and network connection (Ethernet) to connect up to three Nemesis displays via a single main cable, reducing the number of cables required through the mast or cockpit.

How many Nemesis displays can I connect to a single hub?

You can connect up to three Nemesis displays to a single Nemesis Hub. It has three dedicated output ports for this purpose.

How to install more than three Nemesis displays?

For installations requiring more than three displays, you can daisy-chain multiple Nemesis hubs in series to extend the system and connect additional screens.

Is the Nemesis hub waterproof and can it be installed outdoors?

Yes, the hub is designed for the marine environment. It has an IPX6 and IPX7 waterproof rating, making it suitable for installation in areas exposed to the elements.

What is the required supply voltage for this hub?

The Nemesis Center (HUB) is compatible with 12V and 24V DC electrical systems. Its operating voltage range is from 10 to 31.2 V DC.

What is the weight of the Nemesis Hub (HUB)?

The weight of the unit alone is 240 grams (0.44 lbs).

Do I need to install a fuse to protect the Némésis hub?

Yes, it is recommended to install an external fuse for circuit protection. The recommended fuse rating is 6 A.

What is the hub's power consumption?

The hub's maximum power consumption is 2 Watts. This does not include the power supplied to connected Nemesis displays.

What are the operating temperatures supported by the Nemesis hub?

The operating temperature range for the hub is -20°C to +60°C (4°F to 140°F).

What are the LED indicators on the housing used for?

The LED indicators provide a quick visual diagnostic of the system status:

PWR: Indicates that the hub is powered.ETH: Indicates the status of the Ethernet network connection.Display 1-3: Indicate the activity of each connected display.

Is this hub compatible with any displays other than B&G Nemesis?

No, this hub is specifically designed and optimized to work with the B&G Nemesis navigation data display system. It is not intended for use with other brands or models of displays.

What type of connectors are used to connect the displays?

The hub uses three 8-pin Ethernet connectors for connecting Nemesis displays.

How does the hub connect to the boat's power supply and network?

Connection to the boat's power supply and Ethernet network is made via a single combined 8-pin Ethernet/Power input port, which greatly simplifies wiring.

Is grounding required during installation?

Yes, a ground connection is required for correct and safe installation. The hub is equipped with a dedicated M4 grounding terminal for this purpose.

Is the Nemesis hub compatible with a NMEA 2000 network?

The hub itself operates on an Ethernet network to communicate with Nemesis displays. To display data from a NMEA 2000 network, this data must first be available on the boat's Ethernet network, typically via an MFD (multifunction display) or a compatible bridge.

What are the advantages of using this hub compared to direct wiring?

The main advantage is the radical simplification of wiring. Instead of running multiple power and data cables to your displays, you only need one combined cable to the hub, which then distributes power and data to the three displays.

What are the different connection ports on the hub?

The hub has the following connections:

1x Ethernet/Power input port (8-pin connector)3x Display output ports (8-pin Ethernet connectors)1x Ground terminal (M4)

Can the hub be mounted on a bulkhead or flat surface?

Yes, the hub housing is designed to be mounted on a bulkhead or any other suitable onboard surface using the provided mounting points.

What is the difference between operating temperature and storage temperature?

Operating temperature is the range in which the device can be safely used (-20°C to +60°C). Storage temperature is the range in which the device can be stored without damage when powered off (-15°C to +55°C).

Does the hub provide power directly to Némésis displays?

Yes, it is one of its main functions. The hub receives power from the boat's system and distributes it to connected Némésis displays via Ethernet cables, eliminating the need for a separate power cable for each display.