KT 30A Square Wave
High-power KT square wave controller for 1000-1500W e-bike conversions. 12-FET design with 36V/48V operation. Square wave commutation delivers slightly more startup torque than sine wave at the cost of noise and efficiency. Programmable via KT-series displays.
In brief: 24–48V controller. 17A continuous. 30A peak. Square Wave, dual mode support. From $97.
Specs verified May 29, 2026
Where to Find
Prices tracked across 1 seller* This page contains affiliate links. WattWorks may earn a commission at no extra cost to you. Learn more
Price History
Price History
Price changes tracked by the crawler
Current best price $96.70. Over the past 90 days: low $96.70, high $96.70, average $96.70 — about average.
- AliExpress - SOMEDAY ebike accessories Store
All Records
9 price records in this period
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - SOMEDAY ebike accessories Store(9 records) | |||||||||
| May 29, 202604:57 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:57 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:56 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:55 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:55 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:54 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:54 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 29, 202604:53 PM | $96.70 | $0.00 | $96.70 | $0.00 | — | — | — | Yes | active |
| May 28, 202601:30 PM | $96.70 | — | $96.70 | Initial | — | — | — | Yes | active |
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Specifications
Type
- VESC Based
- No
- Cooling
- Air
Electrical
- Voltage Range
- 24–48V
- Continuous Amps
- 17A
- Peak Amps
- 30A
Motor Features
- Regen Support
- No
- Drive Mode
- Square Wave
- 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
- 650 g
- Dimensions (L×W×H)
- 195mm × 85mm × 44mm
Ports & Connectors
Battery Input
Power
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Battery - |
Hall Sensor
Hall SensorTemperature
| 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 |
Display
UARTDisplay
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Ground |
| 3 | Blue | UART RX |
| 4 | Green | UART TX |
| 5 | Yellow | High Beam |
Throttle
Throttle
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | Black | Ground |
| 3 | Green | Throttle Signal |
PAS
PAS
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | Black | Ground |
| 3 | Yellow | PAS Signal |
Brake
Brake
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Orange | Brake Signal (Low) |
