Kunray 26A Three-Mode Sine Wave Brushless Controller & LCD Display Kit (24V/36V/48V 500W–750W) with Self-Learning
26A with S5 / China Mainland
$128.00
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Kunray 26A Three-Mode Sine Wave Brushless Controller & LCD Display Kit (24V/36V/48V 500W–750W) with Self-Learning
$128.00
Upgrade your electric bicycle or e-scooter with the Kunray 26A Three-Mode Sine Wave Brushless Motor Controller & Digital Display Kit. Designed for 500W and 750W brushless hub and mid-drive motors, this intelligent controller delivers silky-smooth throttle modulation, ultra-low acoustic motor noise, and exceptional energy efficiency across 24V, 36V, and 48V battery systems.
Built with an intelligent three-mode driving algorithm and automated self-learning wires, the controller identifies motor phase sequence and Hall sensor timing automatically. When your motor Hall sensors are operating normally, it runs in whisper-quiet Sine Wave mode; if a Hall sensor ever gets damaged, it automatically fails over to sensorless Square Wave mode, ensuring you never get stranded mid-ride.
Key Highlights & Performance Features
- Ultra-Quiet Three-Mode Sine Wave: Eliminates electrical hum and motor vibration during acceleration while improving torque transfer and battery range.
- Intelligent Self-Learning Function: Dual self-study wires automatically configure forward/reverse motor rotation and phase angle without complex manual wiring.
- Multi-Voltage Universal Architecture: Automatically compatible with DC 24V, 36V, and 48V systems with built-in low-voltage cutoff to protect battery cells.
- High-Power 26A Output: Powered by 9 high-efficiency MOSFETs capable of managing peak current loads up to 26A for brisk acceleration and hill climbing.
- Standardized UART Protocol No. 2: Ensures lag-free communication, smooth 1:5 cadence pedal assist (PAS), and accurate digital telemetry across all supported displays.
- Extensive Cockpit Display Choices: Pair with the flagship UKC1 3.5" color TFT, the anti-theft S966-NFC with tap-to-unlock keyless cards, widescreen UKS6, or classic LCD meters like M5, S866, S-100, and H-100.
- Rugged Aluminum Heat-Dissipation Body: Grooved aluminum alloy enclosure measuring 124 × 62 × 38 mm provides rapid thermal dissipation.
Technical Specifications Matrix
| Parameter | Specification |
|---|---|
| Controller Type | Three-Mode Sine Wave Brushless Controller |
| Rated System Voltage | DC 24V / 36V / 48V Universal |
| Rated Motor Power | 500W / 750W Brushless Hub & Mid Motors |
| Maximum Current Output | 26 A (Rated current: ~13 A) |
| MOSFET Count | 9 High-Efficiency MOSFETs |
| Speed Setting Voltage | 1.1 V – 4.2 V (Standard thumb & twist throttles) |
| Pedal Assist (Booster) Ratio | 1:5 Cadence PAS |
| Communication Protocol | UART Communication Protocol No. 2 |
| Brake Signal | Low-Level Electronic Brake Cutoff |
| Dimensions (L × W × H) | 124 × 62 × 38 mm (approx. 4.88 × 2.44 × 1.50 in) |
| Harness Lead Length | 150 mm / 5.9 in with standard SM multi-pin plugs |
Cockpit Display Options Breakdown
1. S966-NFC Color LCD (Contactless Card Keyless Security)
Swipe to ride! Features built-in RFID/NFC technology with tap-to-unlock smart cards. Without the card, the motor remains immobilized against theft. High-contrast 3.3-inch color screen and ergonomic thumb remote.
2. UKC1 Vertical 3.5" TFT Color Screen
The gold standard for premium e-bikes. Features real-time watt power metering, battery voltage percentage, speed, odometer, clock, headlights, and automatic night mode.
3. UKS6 & UKC3 Color Displays
Sleek horizontal color cockpits designed for center-handlebar or offset mounting, offering rich telemetry and USB charging ports.
4. M5 & M9 High-Contrast Dashboards
Large, high-contrast screens engineered for high visibility in direct sunlight with comprehensive parameter customization menus.
5. Classic LCD & Integrated Throttle Options
Choose from proven meters including S866, CS866, S869, S830U (with USB port), S-100, H-100, GD02, G51, GZ3, integrated throttle meters (124DX / 124DXFT), or minimalist LED indicators (LED-S800, LED-S810, LED-G20).
Step-by-Step Self-Learning Setup
- Elevate the drive wheel off the ground so it can spin freely.
- Connect the motor phase wires (Yellow, Green, Blue) and the 5-wire Hall sensor connector.
- Connect power leads to your 24V/36V/48V battery and turn on the electric lock switch.
- Connect the two white Self-Learning wires together. The motor will automatically begin rotating.
- If the motor spins forward smoothly, unplug the learning wires. If it spins in reverse, disconnect and reconnect them once to flip direction, then disconnect permanently.
- Plug in your chosen display, throttle, and electronic brake cutoffs to complete the installation.
Frequently Asked Questions (FAQ)
Q: What size motor is this 26A controller designed for?
A: It is ideal for 500W and 750W brushless DC motors operating at 24V, 36V, or 48V. It supports both geared hub motors and direct-drive hub motors.
Q: What does "Three-Mode Sine Wave" mean?
A: Under normal riding, the controller powers the motor via smooth, quiet Sine Wave pulses using Hall sensor feedback. If any Hall sensor fails or disconnects on the road, the controller automatically falls back to sensorless Square Wave operation, keeping the bike fully functional so you can ride safely home.
Q: Can I use this controller with an existing display from another brand?
A: This controller communicates using UART Protocol No. 2. Third-party displays running other protocols will trigger communication errors (Error 10/Error 30). We strongly recommend ordering a complete kit with one of our matched displays.
Q: Is a battery included in this package?
A: No battery is included. You will need a 24V, 36V, or 48V battery pack with a continuous discharge rate of at least 26A.
Q: What warranty and customer service does E Smart Way provide?
A: All controllers and display kits are factory-tested before shipment. E Smart Way provides free worldwide shipping with tracking, responsive customer service, and a 3-month replacement warranty on electronic components.
International Shipping & Customs Notice
Free Worldwide Shipping: All kits are bench-tested and securely packed in protective packaging before dispatch. Full tracking is provided upon fulfillment.
Customs & Import Duties: Depending on destination regulations, international shipments may occasionally be subject to local VAT or customs clearance fees charged by local authorities. As standard in international trade, these charges remain the buyer's responsibility.
Accurate Delivery Details: Please verify your phone number and shipping address at checkout so courier services can coordinate delivery easily if needed.
