12V Pure Sine Wave Inverter – 600W or 1000W (True Sine, Dual Outlets, RCD Safety)

The Pro Power SB (Pure Sine) 12V inverter in 600W and 1000W versions brings reliable, household-quality electricity to your boat. With its true sine wave output, it can safely power even delicate electronics: laptops, medical devices, modern TVs, battery chargers for power tools or scooters – all without the buzzing, overheating, or performance issues that can occur with “quasi” (modified) sine wave inverters. This makes it the go-to choice for discerning users who demand uncompromised power quality on board.

The two available wattage options cover a wide range of needs:

• The 600W model is excellent for smaller vessels or dedicated purposes – for example, providing AC power for lighting, fans, laptops, mobile device chargers, a small fridge, or a TV. It’s very compact and has low idle consumption, which is important if your battery capacity is limited. This model is a power miser when nothing is plugged in, so it won’t unnecessarily drain your battery.
• The 1000W model offers higher capacity, suitable for medium-sized boats where you may need to run appliances like a microwave oven, coffee maker, hair dryer (on low setting), or power tools up to about 1000W. With this inverter, you can also operate multiple smaller devices at the same time.

Both models are built with substantial surge power capability (typically up to 2× the rated wattage for short durations). This means the inverter can handle the high startup currents of motor-driven devices. For instance, the 600W unit can start a device rated around 300–400W that has a surge on startup, and the 1000W unit can handle a device of 800W with a momentary surge of ~1600–2000W. This surge headroom is crucial for things like refrigerators, pumps, or power tools that draw extra current when they first turn on.

Safety & Outlets: The integrated RCD (Residual Current Device, also known as GFCI) is a key feature for marine use – it continuously monitors for any leakage current to ground (the boat’s earth) and instantly cuts off the output if it detects a fault, protecting you and your crew from electric shock in case of an accident (for example, water ingress in an appliance or a damaged cable). The dual AC outlets on the inverter’s front panel allow two devices to be plugged in directly. One outlet is a standard Schuko (EU type) for 230V, and the other is a British 3-pin socket, which can be utilized for a 110V device or simply as an alternate output (depending on configuration). The inverter provides a configurable grounding setup – there is a provision to bond the neutral output to the chassis ground (earth) or to leave it floating. This is important for integration into your vessel’s electrical system: some setups require the inverter’s neutral to ground bond when it’s the sole power source, but to disconnect when an external shore power is connected. This inverter is designed with those requirements in mind, making it flexible and compatible with various installation schemes.

Construction & Cooling: The unit is built with high-quality components that ensure high efficiency and longevity. The use of 24-karat gold-plated terminals for the DC connections guarantees minimal resistance and corrosion-proof performance – a vital detail in saltwater environments. Cooling is achieved via a built-in fan with an enlarged diameter that kicks in as needed. Because the fan is bigger, it can move sufficient air at lower RPMs, translating to quieter operation. Under light loads, the fan often stays off completely, and under heavier loads it runs only as fast as required, effectively preventing overheating without making excessive noise.

Usage Recommendations: Install the inverter close to your battery bank with short, adequately thick cables (for 600W use at least AWG5/16 mm², for 1000W use AWG3/25 mm² or thicker) to minimize voltage drop. Ensure good ventilation around the unit. In a marine setting, the inverter can supply kitchen appliances, entertainment devices or work tools as needed:

• Leverage the 600W inverter for day-to-day needs on a small boat – for instance, powering your laptop charger or watching TV in the evening, running a small vacuum cleaner to tidy up, or charging camera batteries and phones. It’s well-suited for boats around 15-23 feet with one or two batteries and modest AC power demands. It provides the comforts of basic electricity without the need for a generator.
• The 1000W inverter opens up more possibilities on a larger yacht or powerboat – it allows you to make coffee with a small espresso machine, heat up a quick meal in a microwave, or let guests use a hairdryer after a swim (on a low ~800W setting). For sailboats around 25-33 feet or motorboats in that range that don’t have a built-in generator, a 1000W inverter brings you closer to the conveniences of shore power. With it, you can also operate power tools on board (drills, portable pumps, etc. up to 1000W), which is extremely handy for maintenance and repairs when you’re away from the dock.