Simarine Battery Shunt 300A 2x Voltage, 2x Resistance, 1x Temperature

Simarine SC303 Active Combo Shunt: Comprehensive Battery and Tank Monitoring

The Simarine SC303 Active Combo Shunt represents a significant upgrade for marine, caravan, and off-grid power systems. Designed specifically for seamless integration with the PICO battery monitor, this advanced module combines precise high-current sensing with versatile tank level and temperature monitoring. By consolidating multiple sensor inputs into a single unit, the SC303 streamlines your wiring and provides a complete overview of your critical system data in one location.

High-Capacity Current Sensing for Heavy Loads

Engineered to handle substantial power demands, the SC303 provides continuous current monitoring up to 300A, making it highly effective for tracking heavy consumers like large inverters, bow and stern thrusters, and anchor winches. It is equally capable of monitoring high-output current generators such as shore power chargers, alternators, and solar panel arrays. With a peak current rating of 400A for under one minute and up to 700A for less than five minutes, this active shunt easily accommodates the starting surges of heavy-duty equipment without compromising accuracy.

Versatile Inputs for Complete System Visibility

Beyond standard battery tracking, the SC303 functions as a multi-purpose central monitoring hub. It features two dedicated voltage inputs compatible with systems up to 75V, making it highly adaptable for standard 12V, 24V, and 48V setups. Additionally, the unit incorporates two resistance inputs specifically designed for tracking fluid levels in fuel, fresh water, or grey water tanks. A dedicated socket for an NTC 10k temperature sensor allows you to keep a close eye on battery banks or ambient cabin temperatures, ensuring your critical equipment operates safely within acceptable thermal limits.

Robust Construction and Easy Integration

Built for the demanding conditions typically encountered in marine and mobile off-grid environments, the SC303 features heavy-duty M10 bolt terminals that ensure a secure, low-resistance connection for your main battery cables. Communication with your PICO display is handled effortlessly via dual SiCOM RJ9 data ports, allowing for simple data daisy-chaining with other Simarine expansion modules. A fully integrated 6-way screw terminal block further simplifies the connection of your secondary voltage and resistance sensors.

Key Features

• Continuous 300A current monitoring with peak capacities up to 700A for heavy motor startups
• Broad voltage compatibility up to 75V, perfectly suited for 12V, 24V, and 48V power applications
• Two independent voltage inputs for monitoring secondary starting or auxiliary battery banks
• Two resistance inputs for accurate, real-time fluid tank level tracking
• Dedicated NTC 10k temperature sensor port for essential battery thermal monitoring
• Heavy-duty M10 bolt terminals providing secure, high-current electrical connections
• Dual SiCOM RJ9 ports for streamlined data communication and network expansion

Streamline Your Off-Grid Power Management

Whether you are upgrading an existing marine electrical system or outfitting a new off-grid caravan, precise system data is critical for reliable energy management. The SC303 eliminates the need for separate standalone tank monitors and voltage sensors, combining them into one highly accurate, easy-to-install package. Upgrade your power setup with the Simarine SC303 Active Combo Shunt today and gain total visibility over your battery capacity, power consumption, and essential fluid levels.