Intelligent switching for smaller vessels

17 Feb 2017

The Mastervolt COI unit has multiple layers of protection provided by software, hardware and mechanical means

The Mastervolt COI unit has multiple layers of protection provided by software, hardware and mechanical means

Netherlands-headquartered mobile and marine power systems specialist Mastervolt has announced the launch of the CZone Combination Output Interface (COI), a compact and intelligent replacement for a traditional fuse box and panel of circuit breakers when using digital switching technology.

CZone is a proven CANbus technology where a single data
cable is used to operate clusters of switches around the vessel. In larger
vessels, there could be an average of 5 separate output interfaces, each
installed at key locations and operating dozens of local appliances along with
ancillaries such as timers and dimmers. The new Combined Output Interface,
however, uses just one compact 30-channel unit to provide all the necessary
outputs, making it ideal for much smaller vessels.

The COI is essentially a complete CZone system in a single,
rugged box, making it a cost effective solution where space – and budgets – are
limited. By using fewer connection points along with industry-standard ‘plug
and play’ Deutsch connectors, Mastervolt says that the COI is very easy to
install.

The designers have also added a USB port to improve remote
serviceability and allow for easy upgrades, while a high power 150 amp unit
fields enough energy for modern domestic appliances that may be run through the
boat’s systems.

A CZone touchscreen is used to operate a boat’s systems
centrally, and as the ABYC and CE safety authorities require every circuit to
have both a fuse and a bypass; this is provided within the COI. Each blade fuse
can be simply withdrawn to isolate a circuit, and pushed into a different
position to create a bypass. To aid identification of the individual fuses,
Marinco has developed an improved adhesive circuit label, which is printed to a
customer’s exact requirements. A clear plastic viewing cover protects the
fuses, although a large clipping system provides fast access. Red and green LEDS
indicate a circuit’s status at a glance.

The COI unit has multiple layers of protection provided by
software, hardware and mechanical means for ultimate reliability. The casing is
built to the IPX5 water ingress standard, and to aid aesthetics, an optional
plate can be used to hide the cable’s glands.

Other features include high power bilge pump channels to
allow manual control, plus ‘pump running’ feedback from a single channel
without the need for additional wiring.

In a typical 27 ft boat, the COI provides 6 digital switch
inputs (wiper, horn etc), 8 analogue inputs (start battery, fuel gauge sender
etc) 12 low current outputs (courtesy lights, anchor light etc) and 4 high
current (25 A) outputs (bilge and water pumps).

With a smaller footprint, simple connections and the ability
to upgrade via a USB, the new Combination Output Interface is the ideal cost
effective solution for a wide range of small commercial vessels that want the
safety and convenience of digital switching, but without multiple output units.

The UK recommended retail price is £1,623 excluding VAT.

By Jake Frith

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