100A ZTW Shark G2 ESC Waterproof 4S-6S 8A SBEC 100A Speed Controller
The ZTW Shark G2 100A is a 32-bit waterproof ESC delivering 100A continuous and 120A burst on 4-6S LiPo. With splash-proof glued design, flat water cooling, 5V/6V 8A SBEC, synchronous rectification, forward/reverse modes, and separate control/power boards for high-power RC boats.
ZTW Shark G2 100A 32-Bit Waterproof ESC 4-6S with Water Cooling and 8A SBEC for RC Boats and Light Underwater Thrusters
32-Bit High-Current 4-6S Boat ESC
The Shark G2 100A brings 100A continuous output to the 4-6S platform, driven by a 32-bit microprocessor for fast response, smooth start-up, and accurate throttle linearity — engineered for large RC boats and heavy lightweight underwater thrusters.
100A Continuous / 120A Burst on 4-6S
New-generation MOSFET technology ensures low heat generation and high reliability under extreme instant current loads. 100A sustained and 120A peak on 4-6S LiPo handles the most demanding 6S motor and prop combinations with authority.
Splash-Proof + Flat Water Cooling
Waterproof-glued construction resists splash and spray, while the 32mm flat water-cooling system efficiently dissipates the elevated heat of 100A operation — essential for large boats and high-power subsea thrusters.
8A Adjustable SBEC for Complex Setups
The 5.0/6.0V switching BEC delivers 8A continuous (15A burst), powering multiple high-torque servos, lights, and auxiliary devices — no external BEC required for large boats or small industrial ROVs.
Synchronous Rectification Efficiency
Synchronous rectification dramatically reduces ESC heating at high currents, improving overall powertrain efficiency and conserving battery energy — critical for sustained high-power operation.
Forward/Reverse & Separate Board Design
Dual running modes for racing or scale/docking. The isolated control-board/power-board architecture improves EMI resistance and reliability, ensuring the control circuit remains stable even when the power stage runs hot.
Comprehensive Protection & Programming
Five-layer protection (start-up, over-heat, LVC, phase loss, signal loss). Program via transmitter, LCD Program Card G2, or optional App. 10-gauge power wires handle high current. Same 89×45×13mm, 105g footprint as the 120A for scalable designs.

Technical Specifications
| Specifications | Shark 20A SBEC G2 | Shark 30A SBEC G2 | Shark 40A SBEC G2 | Shark 50A SBEC G2 | Shark 60A SBEC G2 | Shark 80A SBEC G2 | Shark 100A SBEC G2 | Shark 120A SBEC G2 |
|---|---|---|---|---|---|---|---|---|
| Continuous Current | 20A | 30A | 40A | 50A | 60A | 80A | 100A | 120A |
| Burst Current | 30A | 40A | 55A | 65A | 80A | 100A | 120A | 140A |
| Input Voltage | 2-4S LiPo | 2-4S LiPo | 2-4S LiPo | 2-4S LiPo | 2-6S LiPo | 4-6S LiPo | 4-6S LiPo | 4-6S LiPo |
| BEC Output | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 8A | 5.0/6.0V Adj. / 8A | 5.0/6.0V Adj. / 8A | 5.0/6.0V Adj. / 8A |
| Water Cooling | Yes (27mm Tube) | Yes (27mm Tube) | Yes (27mm Tube) | Yes (27mm Tube) | Yes (27mm Tube) | Yes (32mm Tube) | Yes (32mm Tube) | Yes (32mm Tube) |
| Programming | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 |
| Firmware Upgrade | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported |
| Power Wire | 18AWG | 16AWG | 14AWG | 14AWG | 14AWG | 12AWG | 10AWG | 10AWG |
| Motor Wire | 18AWG | 16AWG | 14AWG | 14AWG | 14AWG | 12AWG | 12AWG | 12AWG |
| Battery Plug | XT60 | XT60 | XT60 | XT60 | XT60 | XT90 | XT90 | XT90 |
| Motor Bullet | 3.5mm Gold | 3.5mm Gold | 3.5mm Gold | 3.5mm Gold | 3.5mm Gold | 4.0mm Gold | 4.0mm Gold | 4.0mm Gold |
| Size (L×W×H) | 60×33×10mm | 60×33×10mm | 69×33×9mm | 69×33×9mm | 70×41×12mm | 89×45×13mm | 89×45×13mm | 89×45×13mm |
| Weight | 32g | 36g | 45g | 45g | 65g | 98g | 105g | 105g |