230V High Voltage Protection Device (Surge/Over-Voltage Protector for AC Systems)

The High Voltage Protection Device is designed to shield your vessel’s AC electrical system from incorrect voltage or sudden spikes that can occur when hooking up to external power. In some marinas or RV parks – and even with onboard generators – the supply voltage might be unstable or excessively high. This can result in damage to sensitive equipment or even failure of voltage regulators (for instance, a generator’s regulator could “run away” and output dangerous voltage). The protection unit continuously monitors the incoming 230V AC voltage in real time. If the voltage exceeds a safe preset threshold, the device immediately cuts off the power before the surge can reach your appliances. Once the voltage returns to normal levels, the unit will either automatically restore power or require a manual reset (depending on safety settings), ensuring that normal operations can resume safely.

Built in a robust, marine-grade enclosure, this device is meant for fixed installation inside the boat, such as near the main electrical panel or breaker box. Its compact footprint (face approximately 155 x 170 mm, depth ~118 mm) allows it to fit in tight spaces. The unit is maintenance-free – once installed, it silently and constantly guards your AC line. In the event of an unsafe voltage, it reacts in milliseconds, preventing scenarios like overheating, electrical fire, or the destruction of costly equipment (battery chargers, refrigerators, navigation electronics, etc.).

Use Cases & Recommendations: We highly recommend this protection device for boats, yachts, and RVs that frequently connect to external AC power sources. If you cruise between marinas with varying power quality or rely on an onboard generator, this protector will significantly reduce the risk of damage due to power issues. It is especially valuable if you have sensitive electronics onboard: battery chargers (which can be damaged by high input voltage), audio/video systems, HVAC units, and other appliances. The device operates completely automatically, requiring no intervention from the crew – once in place, it’s always on guard. Should an input power problem occur, you’re safeguarded from potentially serious incidents; when the power is normal, you won’t even notice the device – it’s transparent to your system’s operation. This means improved safety, worry-free nights aboard, and extended lifespan of all your electrical equipment.

• Shore Power Connections: Use this protector whenever you hook up to a marina or campground outlet. It will “filter out” unwanted surges or overly high voltage that often occur in heavily loaded or poorly regulated docks. This is especially crucial in international travel where grid quality may vary – your boat’s systems will be guarded from the unknowns of local electricity.
• Onboard Generators & Inverters: If you run a genset or inverter on board, this device acts as an extra insurance policy. In the rare case your generator’s regulator fails or an inverter malfunctions and outputs too high a voltage, the module will cut off the AC feed, preventing fires or equipment burn-out. You get valuable seconds to shut things down safely.
• RVs and Mobile Homes: The unit is equally useful in RV applications – when plugging into an unfamiliar outlet at a park, where the voltage might be above the standard 110/220V, it will protect your gear (air conditioners, microwave, TV, etc.) from frying. It’s a set-and-forget safety measure that every serious traveler should consider to avoid costly repairs or replacements.