Kunray Brushless BLDC Motor Controller 36V/48V 1000W–2000W (12-MOS / 15-MOS) for E-Bike, Go-Kart & Electric Scooter
48V 1000W
$95.68
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Kunray Brushless BLDC Motor Controller 36V/48V 1000W–2000W (12-MOS / 15-MOS) for E-Bike, Go-Kart & Electric Scooter
$95.68
Supercharge your high-power electric vehicle conversion with the Kunray High-Power Brushless DC (BLDC) Motor Controller. Engineered for 36V and 48V systems ranging from 1000W up to 2000W, this heavy-duty controller delivers high-torque output, immediate throttle response, and dependable thermal efficiency for electric bicycles, high-speed e-scooters, electric go-karts, mini-bikes, e-trikes, and custom DIY light electric vehicles (LEVs).
Available in both 12-MOSFET (1000W–1600W, 30A–32A) and 15-MOSFET (1800W–2000W, 33A–41A peak) configurations, each unit features an extruded, grooved aluminum alloy housing that ensures rapid passive heat dissipation under demanding continuous torque loads and hill climbing.
Key Performance Features
- High-Current BLDC Architecture: Heavy-duty MOSFET array delivers up to 32A (12-MOS) or 33A–41A (15-MOS) for explosive off-the-line acceleration and steep hill climbing.
- Multi-Voltage System Compatibility: Fully compatible with 36V and 48V battery systems with built-in low-voltage undervoltage cutoff (41.5V for 48V systems) to safeguard lithium and lead-acid battery packs against over-discharge.
- Integrated 3-Speed Switch: Connect a handlebar 3-speed selector switch to easily toggle between Eco, Standard, and High-Speed performance modes.
- Electronic Reverse Function: Built-in reverse wiring harness makes this controller ideal for electric go-karts, cargo trikes, and four-wheel electric vehicles.
- Low-Level Electronic Brake (E-Brake) Cutoff: Instantly disengages motor drive power when the brake levers are pulled, maximizing rider safety and brake pad longevity.
- Comprehensive Accessory Leads: Dedicated pre-wired harness plugs for electric ignition lock key switch, brake light, indicator/dashboard light, horn/headlight switch, and charging port.
- Heavy-Duty Extruded Aluminum Housing: Deep-finned aluminum alloy casing provides superior heat dissipation to protect internal electronics during prolonged high-power riding.
12-MOSFET vs. 15-MOSFET Specification Matrix
| Parameter | 12-MOSFET Model | 15-MOSFET Model |
|---|---|---|
| Rated Power Support | 1000W, 1500W, 1600W | 1800W, 2000W |
| Rated System Voltage | 36V / 48V DC | 48V / 60V DC |
| Rated Current | 30A (Actual peak: 32A) | 33A ± 1A (Peak: up to 41A) |
| Low-Voltage Cutoff | 41.0V (48V pack protection) | 41.5V (48V pack protection) |
| Dimensions (L × W × H) | 150 × 85 × 45 mm | 180 × 82 × 45 mm (195 mm w/ brackets) |
| Weight | Approx. 550 g | Approx. 680 g |
| Speed Control Voltage | 1.1V – 3.7V / 4.2V standard | 1.1V – 3.7V / 4.2V standard |
| Brake Type | Low-Level Electronic Cutoff | Low-Level Electronic Cutoff |
Dimensions & Enclosure Sizing
1. 12-MOSFET Size Chart (1000W–1600W Models)
Enclosure dimensions: 150 mm length × 85 mm width × 45 mm height. Total weight approximately 550 g.
2. 15-MOSFET Size Chart (1800W–2000W Models)
Enclosure dimensions: 180 mm body length (195 mm including mounting flanges) × 82 mm width × 45 mm height.
Wiring Harness & Connector Pinout Guide
All wiring leads use labeled, color-coded multi-pin automotive/e-bike style connectors for straightforward hookup. Refer to the diagrams below when connecting your battery, throttle, motor phase wires, and cockpit accessories:
| Harness Function | Wire Colors & Connector | Description & Instructions |
|---|---|---|
| Battery Power Input | Heavy Gauge Red (+) & Black (-) | Connect to main battery pack (+ / -). High-amp ring terminals. |
| Motor Phase Leads | Heavy Gauge Yellow (U), Green (V), Blue (W) | Connect to motor phase leads via heavy-duty ring terminals. |
| Hall Sensor Plug | 6-Pin (Red 5V, Black GND, Yellow, Green, Blue) | Connects to motor Hall sensor harness for synchronous commutation. |
| Throttle / Accelerator | 3-Pin (Red +5V, Black GND, Green Signal) | Connect to standard Hall-effect thumb or twist throttle (1.1V–4.2V). |
| Electric Power Lock | 2-Pin (Red V+, Orange VCC) | Connect to key ignition switch. (Bridge together if not using key lock). |
| Electronic Brake | 2-Pin (Black GND, Purple SL) | Low-level brake cutoff switches on brake levers or pedal sensors. |
| 3-Speed Gear Switch | 3-Pin Connector | Toggles between 3 discrete speed/power limit curves. |
| Reverse Gear | 2-Pin Connector | Short to activate reverse motor rotation (ideal for karts and trikes). |
| Charging Port Lead | 2-Pin (Red V+, Black GND) | Direct fused connection for onboard charging port integration. |
Frequently Asked Questions (FAQ)
Q: What vehicles and motors is this controller compatible with?
A: It is engineered for brushless DC (BLDC) motors across electric bicycles, high-speed stand-up and seated electric scooters, DIY electric go-karts, drift carts, mini-bikes, and e-tricycles. It functions with standard 3-phase brushless motors equipped with Hall sensors.
Q: Should I choose the 12-MOSFET or 15-MOSFET model?
A: Select the 12-MOSFET model if your motor is rated between 1000W and 1600W (operating at 30A rated current). Choose the 15-MOSFET model if you are running an 1800W or 2000W motor or require higher peak acceleration current (up to 41A) with superior thermal dissipation.
Q: Why doesn't the motor turn on after connecting power?
A: Verify that the Electric Power Lock wires (Red V+ and Orange VCC) are connected. If you are not using an external key ignition switch, these two wires must be bridged together to energize the controller circuit board.
Q: Does this controller support reverse gear for go-karts?
A: Yes! The dedicated 2-pin Reversing connector allows you to wire a dashboard or handlebar rocker switch to trigger reverse motor direction smoothly.
Q: What warranty and transit protection is provided?
A: E Smart Way bench-tests every controller before dispatch and provides free tracked worldwide shipping, full transit loss protection, and a 3-month replacement warranty on electronic components.
International Shipping & Logistics Notice
Free Worldwide Shipping: Every controller is securely packed in shock-absorbent packaging and dispatched with end-to-end parcel tracking.
Customs & Import Duties: Depending on destination regulations, international shipments may occasionally be subject to local VAT or customs clearance fees assessed by local authorities. As standard in international trade, these charges remain the buyer's responsibility.
Accurate Delivery Details: Please ensure your contact phone number and full shipping address are entered accurately at checkout to facilitate seamless courier delivery.
