VOTOL EM300S (LIN/CAN)
VOTOL EM300S is a high-power 48-72V sinewave controller with 300A rated DC / 550A boost / 700A peak phase (≤39.6kW max power). 36-MOSFET design suited for 8-10kW PMSM/BLDC motors — QS 8000-10000W hub motors and QS165 V3 10kW mid-drive. Features 200% flux weakening, IP67 waterproofing, ≥92% max efficiency, hall sensored. Uses VOTOL's New Version architecture: TE Ampseal 23-pin main signal connector + screw terminals for battery/phase. Dual-protocol: supports SIAECOSYS LIN and CAN BUS displays. Programmable via PC with the V2 CAN USB cable (shared with EM150-2/EM200-2/EM260/EM350S/EM550).
In brief: 48–72V controller. 300A continuous. 550A peak. Sinewave, dual mode, regen, field weakening support. From $390 across 3 sellers.
Specs verified Oct 24, 2026
Where to Find
Prices tracked across 4 sellersAliExpress - Dun Electric Drive Store
$390.10 + $71.09 shipping
AliExpress
$473.36
AliExpress - Dun Electrical Store
$429.55 + $71.19 shipping
AliExpress - DUN TECH Store
Out of stock* Shipping estimates are for the contiguous US and may vary by location.
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Specifications
Type
- VESC Based
- No
- Cooling
- Air
Electrical
- Voltage Range
- 48–72V
- Continuous Amps
- 300A
- Peak Amps
- 550A
- Max Phase Amps
- 700A
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 ONE-LIN, SiAECOSYS CAN BUS
Power Switch
- Supports Power Switch
- Yes
- Requires Power Switch
- Yes
- Requires Pre-charge
- Yes
Programming
- Via Display
- No
- Via Phone
- No
- Via PC
- Yes
Physical
- Weight
- 2.35 kg
- Dimensions (L×W×H)
- 220mm × 141mm × 68mm
- 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 | Battery + |
| 2 | Orange | Power Switch Signal |
| Pin | Wire color | Function |
|---|---|---|
| 1 | White | One-Wire Comm |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Green / White | Gear Low |
| 2 | Yellow / White | Gear Medium |
| 3 | Black / White | Gear High |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Gray / White | Gear Reverse |
| 2 | Black | Ground |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Yellow / White | Gear Sport |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | Black | Ground |
| 3 | Green | Throttle Signal |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Purple | Brake Signal (High) |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Brown / White | Parking / E-Brake |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Pink | 5V Power |
| 3 | Orange | UART TX |
| 4 | Blue | UART RX |
