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VOTOL EM350S is a very-high-power 48-72V sinewave controller with 350A rated DC / 600A boost / 1300A peak phase (≤43.2kW max power). 48-MOSFET design suited for 10-12kW PMSM/BLDC motors in extreme e-moto builds. Features 200% flux weakening, IP67 waterproofing, ≥92% max efficiency. Uses VOTOL's New Version architecture: TE Ampseal 23-pin main signal connector + screw terminals. Dual-protocol: SIAECOSYS LIN and CAN BUS displays supported. Programmable via PC with the V2 CAN USB cable.</description> <parameter name="adminNotes">Source: AliExpress SIAECOSYS Electric Drive Store + SIA Tech Store + Dun Electric Store listings. Authoritative specs: - Rated DC 350A / Boost DC 600A / Peak Phase 1300A - 48-72V / Max Power 43,200W / 48 FETs - Matched motor: 10-12kW - Max Efficiency 92% / IP67 / 200% flux weakening - Weight 2800g / Size 220×161×90mm VOTOL naming: also called 'EM350sp' or 'EM350P' (shares New Version USB cable with EM260P / EM150-2SP / EM200-2P). New Version Ampseal 23-pin architecture. Dual-protocol.

In brief: 48–72V controller. 350A continuous. 600A peak. Sinewave, sensored, regen, field weakening support. From $664 across 2 sellers.

Type

VESC Based
No

Electrical

Voltage Range
48–72V
Continuous Amps
350A
Peak Amps
600A
Max Phase Amps
1300A

Motor Features

Regen Support
Yes
Drive Mode
Sinewave
Sensor Mode
Sensored
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
2.8kg
Dimensions (L×W×H)
220.0mm × 161.0mm × 90.0mm

Ports & Connectors

Power Input2-position Screw Terminal Block
Power
1Battery +
2Battery -
Phase Wires3-position Screw Terminal Block
Motor Phase
1Phase A
2Phase B
3Phase C
Main Signal Connector (Ampseal 23-pin)
E-lock
Power Switch
1Battery +
2Power Switch Signal
LIN1 wire
Display
1One-Wire Comm
Mode (1,2,3)
Display
1Gear Low
2Gear Medium
3Gear High
R mode
Display
1Gear Reverse
2Ground
S mode
Display
1Gear Sport
Throttle
Throttle
15V Power
2Ground
3Throttle Signal
High Brake
Brake
1Brake Signal
P mode
Brake
1Parking / E-Brake
Program Debugging
UART
1Ground
25V Power
3UART TX
4UART RX

Included Components

Frequently Asked Questions

Other Controllers

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