KT 50A Sine Wave HV
High-voltage KT sine wave controller for 1500-3000W e-motorcycle and high-power hub motor builds. 18-FET design supporting 48V through 90V batteries (auto-detect). The most powerful controller in the KT lineup. Significantly larger housing than standard models (260mm). Requires 72V-rated KT displays (LCD3 72V, LCD5 72V, LCD8H 72V). Programmable via KT-series displays.
In brief: 48–90V controller. 25A continuous. 50A peak. Sinewave, dual mode, regen support. From $192.
Specs verified Jun 5, 2026
Where to Find
Prices tracked across 2 sellers* Shipping estimates are for the contiguous US and may vary by location.
* WattWorks may earn a commission from some sellers linked here. Sellers are ranked by total price and stock status only. Learn more
Price History
No price history data yet
History is recorded when the crawler detects price changes or when product link prices are manually updated.
Reviews
No reviews yet — be the first to share your experience.
Sign in with Google to leave a review.
Specifications
Type
- VESC Based
- No
- Cooling
- Air
Electrical
- Voltage Range
- 48–90V
- Continuous Amps
- 25A
- Peak Amps
- 50A
Motor Features
- Regen Support
- Yes
- Drive Mode
- Sinewave
- Sensor Mode
- Dual Mode
- Field Weakening
- No
- Self-Learning
- No
- Dual Motor Support
- No
- Controller Pairing
- No
Inputs
- Throttle Support
- Yes
- PAS Support
- Yes
Display
- Supports Display
- Yes
- Requires Display
- No
- Protocols
- KT (Kunteng)
Power Switch
- Supports Power Switch
- No
- Requires Power Switch
- No
- Requires Pre-charge
- No
Programming
- Via Display
- Yes
- Via Phone
- No
- Via PC
- No
Physical
- Weight
- 550 g
- Dimensions (L×W×H)
- 260mm × 84mm × 43mm
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Battery - |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | Black | Ground |
| 3 | Yellow | Hall A |
| 4 | Green | Hall B |
| 5 | Blue | Hall C |
| 6 | White | Motor Temp |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Ground |
| 3 | Blue | UART RX |
| 4 | Green | UART TX |
| 5 | Yellow | High Beam |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | Black | Ground |
| 3 | Green | Throttle Signal |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | Black | Ground |
| 3 | Yellow | PAS Signal |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Orange | Brake Signal (Low) |
