Powering the Shore Side: Why Cristec Shore Power Units Are a Smart Choice for Cruisers
When your boat is moored in harbour, one of the most important functions of the shore mains connection is to safely and reliably charge your batteries while distributing AC power throughout the boat. That’s exactly what Cristec Shore Power Units are designed to do — combining multiple essential systems into a single, compact enclosure.
What Is a Shore Power Unit?
A shore power unit combines several functions into one cabinet:
AC circuit protection — integrated RCDs and MCBs to protect the shore mains wiring and equipment.
Battery charger — turns the incoming AC mains into a regulated multi-stage DC charging output to your batteries.
Power distribution — multiple outputs (MCBs) let you feed sockets, immersion heaters, and other AC loads safely and selectively.
By integrating these functions, a shore power unit simplifies installation, reduces wiring runs, and creates a safer, tidier electrical locker.
Why Cristec?
Established in 1983, Cristec is a long-trusted name in marine power conversion, known for products that deliver durability, precision, and reliability.
Some key differentiators and advantages:
Compact and lightweight – by combining protection, charging, and distribution in one unit, there’s no need for multiple enclosures.
Silent, fanless operation – passive cooling means no noisy fans.
Lithium ready – fully compatible with LiFePO₄ (lithium) and traditional lead-acid batteries.
Smart connectivity – built-in Bluetooth and CAN-BUS options integrate seamlessly with modern monitoring and control systems.
Because of these features, Cristec shore power units suit both traditional lead-acid systems as well as modern lithium systems.
Spotlight: The Cristec YPOWER+ 12-40 4D
A good example of the range is the YPOWER+ 12-40 4D — a fully integrated 12V, 40A system that delivers efficient charging and safe AC power distribution in one unit.
Key features:
12V, 40A fanless battery charger with multi-stage charging algorithm.
Four 10A MCBs for distributing AC power to onboard.
Retains all the hallmark Cristec benefits — compact design, silent operation, lithium compatibility, and smart connectivity.
As Cristec puts it, “one box and it’s sorted” — simplifying shore wiring and removing the need for separate distribution panels.
Applications & Use Cases
Cristec Shore Power Units are particularly effective for:
Cruisers and liveaboards who spend extended periods in port and want a clean, integrated electrical solution.
Refits and upgrades, where combining protection, charging, and distribution helps reduce complexity and space demands.
Lithium systems, offering future-proof compatibility for hybrid or upgraded battery banks.
Smaller yachts, where every centimetre of locker space and every kilogram counts.
With models including the Cristec YPOWER+ 12-20, 12-30, 12-40, and 12-60, Advance Yacht Systems offers the complete range of Cristec Shore Power Units from a single trusted source.
As the UK and Ireland distributor, we provide not only supply but also expert guidance, installation support, and ongoing technical advice — ensuring you get the right system for your yacht.
