ZTW Seal 70A SBEC G2 32-Bit Waterproof ESC 3-6S with Water Cooling for RC Boats and Marine Propulsion

32-Bit 170MHz Processing Power

At the core of the Seal 70A G2 is a high-performance 32-bit microprocessor running at 170MHz, delivering stronger computing ability and faster throttle response than 8-bit alternatives. Super smooth start-up and accurate throttle linearity make it ideal for sport RC boats, electric surfboards, and small underwater thrusters.

70A Continuous / 80A Burst on 3-6S

Built with next-generation MOSFETs that generate low heat and withstand instant current surges, this ESC delivers 70A sustained and 80A peak on 3-6S LiPo — matching the most common battery configurations in recreational and light commercial marine use.

IP67 Waterproof with Dual Water Cooling

Rated IP67, the fully sealed enclosure handles full water immersion. Two integrated water-cooling pipes combined with customized heat sinks provide efficient heat dissipation, keeping the ESC cool during sustained high-throttle runs on the water.

8A Adjustable SBEC — No External UBEC

The built-in 6.0/7.4/8.4V switching BEC supplies 8A continuous, powering receivers and servos directly. Adjustable voltage matches high-voltage digital servos for precise steering and throttle control on RC boats.

Forward/Reverse & Freewheeling Modes

Two running modes — "Forward Only" for racing and "Forward and Backward" for scale boats and docking — plus freewheeling circuitry deliver higher driving efficiency and more energy-saving operation compared to ESCs without freewheeling.

Comprehensive Protection Suite

Start-up protection, over-temperature power reduction, low-voltage cutoff, signal loss, phase loss, over-current, abnormal power-on voltage, and over-load protection all come standard — protecting both the ESC and your boat in every scenario.

Telemetry, APP & LCD Programming

Real-time data returning (current, voltage, temperature, RPM, throttle, ESC status) viewable via ZTW App or LCD Program Card G2. Configure all parameters via Bluetooth app, LCD card, or transmitter stick — the same G2 ecosystem across the entire Seal lineup.

Technical Specifications