G2 20A ZTW Shark ESC Waterproof ESC 2S-4S SBEC For Light Underwater Thrusters
The ZTW Shark G2 20A is a 32-bit waterproof ESC delivering 20A continuous and 30A burst on 2-4S LiPo. With splash-proof glued design, flat water cooling, 5V/6V 4A SBEC, synchronous rectification, forward/reverse modes, and separate control/power boards for RC boats and small unde
ZTW Shark G2 20A 32-Bit Waterproof ESC 2-4S with Water Cooling and SBEC for RC Boats and Light Underwater Thrusters
32-Bit Processing for Smooth, Precise Control
At the heart of the Shark G2 20A is a high-performance 32-bit microprocessor with an improved algorithm, delivering faster response, super smooth start-up, and highly accurate throttle linearity. Ideal for small sport RC boats, scale vessels, and lightweight underwater thrusters demanding precise control.
20A Continuous / 30A Burst on 2-4S
Built with new-generation MOSFETs that generate low heat and withstand instant current surges, this ESC delivers 20A sustained and 30A peak on 2-4S LiPo — the most common battery range for compact recreational boats and small subsea propulsion systems.
Splash-Proof with Flat Water Cooling
The ESC is waterproof-glued for splash protection, combined with an integrated flat water-cooling design that ensures excellent heat dissipation in the tight motor boxes of small boats and compact underwater enclosures.
4A Adjustable SBEC
A built-in 5.0/6.0V switching BEC supplies 4A continuous, powering the receiver and standard servos directly — no external BEC needed for typical small boat setups.
Synchronous Rectification for Efficiency
Synchronous rectification significantly reduces ESC heating, improving driving efficiency and saving battery energy — extending run time for both recreational boating and lightweight underwater missions.
Forward/Reverse & Separate Board Design
Two running modes — "Forward Only" for racing and "Forward and Backward" for scale operation and docking. The separate control-board/power-board layout improves anti-interference and reliability by isolating heat from the control circuitry.
5-Layer Protection & Programming
Start-up, over-heat, low-voltage cutoff, phase loss, and signal loss protection safeguard your investment. Configure via transmitter stick or ZTW LCD Program Card G2 (optional Phone App with adapter). Supports high-RPM motors and most motors on the market.
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 |
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