VOTOL EM50-4 (CAN)
VOTOL EM50-4 CAN variant — 48-72V sinewave controller with 40A rated DC and 80A boost DC current. Suited for 1-2kW PMSM/BLDC motors. Same hardware as the EM50-4 LIN (704cd77c) but uses CAN BUS display protocol instead of ONE-LIN. 18-MOSFET design, flux weakening, IP67 waterproofing. Uses VOTOL's standard EM/SV-series Wiring A architecture: 3 flush Mini-Fit Jr headers + screw terminals. Programmable via PC.
In brief: 48–72V controller. 40A continuous. 80A peak. Sinewave, dual mode, regen, field weakening support. From $103 across 3 sellers.
Specs verified Sep 9, 2026
Where to Find
Prices tracked across 5 sellersAliExpress
$103.03
AliExpress - SIAECOSYS Official Store
$108.52 + $19.28 shipping
AliExpress - SIA Tech Store
$114.85 + $23.10 shipping
AliExpress - MITMC EXTREME MOTOR Parts Official Store
Out of stockAliExpress - SIA Tech Store
Out of stockAliExpress - SiAECOSYS Electric Powertrain Store Store
Out of stockAliExpress - SIAECOSYS Official Store
Out of stock* Shipping estimates are for the contiguous US and may vary by location.
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Price History
Current best price $103.03. Over the past 90 days: low $102.70, high $103.03, average $102.71 — about average.
- AliExpress
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Specifications
Type
- VESC Based
- No
- Cooling
- Air
Electrical
- Voltage Range
- 48–72V
- Continuous Amps
- 40A
- Peak Amps
- 80A
- Max Phase Amps
- 170A
Motor Features
- Regen Support
- Yes
- Drive Mode
- Sinewave
- Sensor Mode
- Dual Mode
- Field Weakening
- Yes
- Self-Learning
- No
- Dual Motor Support
- No
- Controller Pairing
- No
Inputs
- Throttle Support
- Yes
- PAS Support
- No
Display
- Supports Display
- Yes
- Requires Display
- No
- Protocols
- SiAECOSYS CAN BUS
Power Switch
- Supports Power Switch
- Yes
- Requires Power Switch
- No
- Requires Pre-charge
- No
Programming
- Via Display
- No
- Via Phone
- No
- Via PC
- Yes
Physical
- Weight
- 850 g
- Dimensions (L×W×H)
- 181mm × 94mm × 50mm
- IP Rating
- IP67
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Battery - |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Yellow | Phase A |
| 2 | Green | Phase B |
| 3 | Blue | Phase C |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | No color | None |
| 3 | Black | Ground |
| 4 | Yellow | Hall A |
| 5 | Green | Hall B |
| 6 | Blue | Hall C |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Red | Alarm Power |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Orange | Anti-Theft Key |
| 2 | Blue | Anti-Theft Signal |
| 3 | Yellow | Wheel Signal |
| 4 | No color | None |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Gray / Purple | Power Switch Signal |
| Pin | Wire color | Function |
|---|---|---|
| 1 | No color | None |
| 2 | Gray / White | Gear Reverse |
| 3 | No color | None |
| 4 | Gray / Black | Brake Signal (Low) |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Brown / White | Parking / E-Brake |
| 2 | Green / White | Gear Low |
| 3 | Yellow / White | Gear Sport |
| 4 | No color | None |
| 5 | Black | Ground |
| 6 | Black / White | Gear High |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Purple | Brake Signal (High) |
| 2 | White | CAN High |
| 3 | Yellow | CAN Low |
| 4 | Black | Ground |
| 5 | Green | Throttle Signal |
| 6 | Pink | 5V Power |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Pink | 5V Power |
| 3 | Orange | UART TX |
| 4 | Blue | UART RX |
| Pin | Wire color | Function |
|---|---|---|
| 1 | No color | None |
| 2 | Brown | One-Click Repair |
