Overview
Surpass Hobby KK series waterproof brushless ESC for RC cars, offered in 45A, 60A, and 80A options. Designed for sensorless brushless motor setups, it supports smooth start-up, strong acceleration response, and linear throttle feel for on-road and off-road driving.
Key Features
- Waterproof and dust-proof design for all-weather use
- Compatible with sensorless brushless motors
- Cooling fan and heat dissipation design for improved thermal management
- Protection functions: low voltage cut-off (for lithium or nickel batteries), over-heat protection, throttle signal loss protection, motor blocked protection
- Programmable and compatible with a pocket-sized program card
- Wiring/ports: motor phase wires, receiver lead, and an external switch
- Battery plug options: T plug or XT60 plug (selectable)
Water use note: Remove the cooling fan before using the ESC in water, then clean and dry the unit soon after use to help prevent connector corrosion.
For selection help between 45A/60A/80A or T/XT60 plug options, contact support at https://rcdrone.top/ or email [email protected].
Specifications
| Model | 45A | 60A | 80A |
|---|---|---|---|
| Item number | KS-300003-03 | KS-300003-04 | KS-300003-05 |
| Continuous current / Burst current | 45A / 240A | 60A / 360A | 80A / 480A |
| Motor type | Sensorless brushless motor | Sensorless brushless motor | Sensorless brushless motor |
| Suitable car | 1/10 car | 1/10 car | 1/10 car, 1/8 car |
| Resistance | 0.0014ohm | 0.0007ohm | 0.0005ohm |
| Battery | 2~3 cells Lipo / 4~9 cells NiMH | 2~3 cells Lipo / 4~9 cells NiMH | 2~4 cells Lipo / 6~12 cells NiMH |
| BEC output | 5.8V/3A (switch mode) | 5.8V/3A (switch mode) | 6.1V/3A (switch mode) |
| Dimensions / Weight | 51.5 x 38.5 x 38.5mm / 76g | - | 51.5 x 38.5 x 38.5mm / 84g |
Applications
- 1/10 RC cars (45A / 60A / 80A)
- 1/8 RC cars (80A)
- Sensorless brushless setups for on-road, off-road, buggy, and monster truck use
Details

Built for all-weather RC driving, the KK series ESC combines a waterproof, dust-resistant case with a fan-cooled heatsink for stable power delivery.



Choose the 45A, 60A, or 80A version based on your vehicle scale and battery setup, with key specs laid out side-by-side for quick selection.
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