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VOTOL EM30SP is an entry-level 48-72V sinewave controller with 32A rated DC / 37A boost current, suited for 500-1000W PMSM/BLDC motors in small e-scooter / e-bike builds. Tier above EM25P — adds the full alarm/anti-theft system with the 3 Molex connector layout. Features flux weakening, IP67 waterproofing, LIN communication, and programmable via PC. Uses the standard VOTOL 'Old Version' EM/SV-series connector architecture: 3 flush Mini-Fit Jr headers (function 2×8, alarm 2×4, hall 2×3) + screw terminals for power/phase. Programmable via the Old Version USB cable.

In brief: 48–72V controller. 32A continuous. 37A peak. Sinewave, dual mode, regen, field weakening support. From $48 across 6 sellers.

Specs verified Jul 20, 2026

Price History

Price History
Price changes tracked by the crawler

Current best price $47.82. Over the past 90 days: low $46.15, high $74.50, average $55.19 — down 13% vs average.

  • AliExpress - SiAECOSYS Electric Powertrain Store Store
  • AliExpress - SiAECOSYS Electric Powertrain Store Store
  • AliExpress - CycleFun Store
  • AliExpress - Dun Electric Drive Store
  • AliExpress - YoMoo Electric Store
  • AliExpress - Dun Electrical Store
  • AliExpress - SIAECOSYS Official Store
  • AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
  • AliExpress
  • AliExpress - CycleFun Store
  • AliExpress - SIA Tech Store
May 3May 10May 17May 24May 31Jun 7Jun 14Jun 21Jun 28Jul 5Jul 12Jul 19$45.00$54.00$63.00$72.00$81.00
All Records
159 price records in this period
DatePriceShippingTotalChangeCouponRatingSalesIn StockStatus
AliExpress(1 record)
May 30, 202607:54 AM$55.05$55.05InitialYesactive
AliExpress - CycleFun Store(18 records)
Jul 7, 202607:57 AM$74.50$1.99$76.49$17.22Yesactive
Jun 25, 202607:59 AM$57.28$18.69$75.97$3.61Yesactive
Jun 10, 202608:01 AM$53.67$18.79$72.46$1.33Yesactive
May 30, 202607:54 AM$55.00$18.82$73.82$0.18Yesactive
May 29, 202608:00 PM$54.82$18.73$73.55$0.00
SSUS08−$8.00
Noactive
May 28, 202605:31 PM$54.82$18.73$73.55$0.10Noactive
May 27, 202606:42 PM$54.92$18.78$73.70$0.00Yesactive
May 27, 202606:41 PM$54.92$18.78$73.70$0.10Yesactive
May 23, 202606:35 PM$54.82$18.73$73.55$0.00Yesactive
May 23, 202606:34 PM$54.82$18.73$73.55$0.64Yesactive
May 22, 202604:29 PM$54.18$18.73$72.91$0.00Yesactive
May 22, 202604:29 PM$54.18$18.73$72.91$3.77
USSS05−$5.00
Yesactive
May 21, 202604:33 PM$50.41$18.74$69.15$0.00Yesactive
May 21, 202604:32 PM$50.41$18.74$69.15$0.00
USSS05−$5.00
Yesactive
May 19, 202604:36 PM$50.41$18.74$69.15$0.00Yesactive
May 19, 202604:36 PM$50.41$18.74$69.15$4.54
USSS05−$5.00
Yesactive
May 18, 202604:32 PM$54.95$18.69$73.64$0.00Yesactive
May 18, 202604:32 PM$54.95$18.69$73.64Initial
USSS05−$5.00
Yesactive
AliExpress - CycleFun Store(24 records)
May 29, 202602:11 PM$55.00$18.82$73.82$0.00Yesactive
May 29, 202602:11 PM$55.00$18.82$73.82$0.06Yesactive
May 28, 202612:40 PM$54.94$18.79$73.73$0.00Yesactive
May 28, 202612:39 PM$54.94$18.79$73.73$0.02Yesactive
May 27, 202601:58 PM$54.92$18.78$73.70$0.00Yesactive
May 27, 202601:58 PM$54.92$18.78$73.70$0.00Yesactive
May 25, 202606:04 PM$54.92$18.78$73.70$0.00Yesactive
May 25, 202606:03 PM$54.92$18.78$73.70$0.10Yesactive
May 23, 202602:06 PM$54.82$18.73$73.55$0.00Yesactive
May 23, 202602:05 PM$54.82$18.73$73.55$0.64Yesactive
May 22, 202612:37 PM$54.18$18.73$72.91$0.00Yesactive
May 22, 202612:37 PM$54.18$18.73$72.91$3.77
USSS05−$5.00
Yesactive
May 21, 202612:40 PM$50.41$18.74$69.15$0.00Yesactive
May 21, 202612:40 PM$50.41$18.74$69.15$0.00
USSS05−$5.00
Yesactive
May 19, 202612:42 PM$50.41$18.74$69.15$0.00Yesactive
May 19, 202612:42 PM$50.41$18.74$69.15$0.69
USSS05−$5.00
Yesactive
May 18, 202612:40 PM$51.10$18.69$69.79$0.00Yesactive
May 18, 202612:40 PM$51.10$18.69$69.79$4.60
USSS05−$5.00
Yesactive
May 17, 202610:41 AM$55.70$18.74$74.44$0.00Yesactive
May 17, 202610:40 AM$55.70$18.74$74.44$0.00Yesactive
May 16, 202610:47 AM$55.70$18.74$74.44$0.00Yesactive
May 16, 202610:46 AM$55.70$18.74$74.44$0.00Yesactive
May 15, 202610:04 AM$55.70$18.74$74.44$0.03Yesactive
May 12, 202609:27 AM$55.73$18.76$74.49InitialYesactive
AliExpress - Dun Electric Drive Store(25 records)
May 29, 202602:15 PM$62.00$55.70$117.70$0.00Yesactive
May 29, 202602:14 PM$62.00$55.70$117.70$0.08Yesactive
May 28, 202612:44 PM$61.92$55.62$117.54$0.00Yesactive
May 28, 202612:43 PM$61.92$55.62$117.54$0.04Yesactive
May 27, 202602:02 PM$61.88$55.59$117.47$0.00Yesactive
May 27, 202602:01 PM$61.88$55.59$117.47$0.00Yesactive
May 25, 202606:09 PM$61.88$55.59$117.47$0.00Yesactive
May 25, 202606:08 PM$61.88$55.59$117.47$0.17Yesactive
May 23, 202602:11 PM$61.71$55.44$117.15$0.00Yesactive
May 23, 202602:10 PM$61.71$55.44$117.15$2.87Yesactive
May 22, 202612:41 PM$58.84$55.44$114.28$0.00Yesactive
May 22, 202612:40 PM$58.84$55.44$114.28$0.04
USSS05−$5.00
Yesactive
May 21, 202612:45 PM$58.88$55.47$114.35$0.00Yesactive
May 21, 202612:44 PM$58.88$55.47$114.35$0.00
USSS05−$5.00
Yesactive
May 19, 202612:46 PM$58.88$55.47$114.35$0.00Yesactive
May 19, 202612:45 PM$58.88$55.47$114.35$0.16
USSS05−$5.00
Yesactive
May 18, 202612:45 PM$58.72$55.32$114.04$0.00Yesactive
May 18, 202612:44 PM$58.72$55.32$114.04$3.03
USSS05−$5.00
Yesactive
May 17, 202610:46 AM$61.75$55.47$117.22$0.00Yesactive
May 17, 202610:45 AM$61.75$55.47$117.22$0.00Yesactive
May 16, 202610:52 AM$61.75$55.47$117.22$0.00Yesactive
May 16, 202610:51 AM$61.75$55.47$117.22$0.00Yesactive
May 15, 202610:08 AM$61.75$55.47$117.22$0.00Yesactive
May 15, 202610:07 AM$61.75$55.47$117.22$3.15
SRUS02−$2.00
Yesactive
May 3, 202609:08 AM$58.60$55.21$113.81InitialYesactive
AliExpress - Dun Electrical Store(25 records)
May 29, 202602:34 PM$57.32$22.49$79.81$0.00Yesactive
May 29, 202602:33 PM$57.32$22.49$79.81$0.06Yesactive
May 28, 202601:02 PM$57.26$22.46$79.72$0.00Yesactive
May 28, 202601:01 PM$57.26$22.46$79.72$0.03Yesactive
May 27, 202602:21 PM$57.23$22.44$79.67$0.00Yesactive
May 27, 202602:20 PM$57.23$22.44$79.67$0.37Yesactive
May 25, 202606:37 PM$56.86$22.38$79.24$0.00Noactive
May 23, 202602:31 PM$56.86$22.38$79.24$0.00Yesactive
May 23, 202602:30 PM$56.86$22.38$79.24$4.94Yesactive
May 22, 202612:59 PM$51.92$22.38$74.30$0.00Yesactive
May 22, 202612:58 PM$51.92$22.38$74.30$0.25
USSS05−$5.00
Yesactive
May 21, 202601:03 PM$52.17$22.40$74.57$0.00Yesactive
May 21, 202601:02 PM$52.17$22.40$74.57$0.00
USSS05−$5.00
Yesactive
May 19, 202601:05 PM$52.17$22.40$74.57$0.00Yesactive
May 19, 202601:03 PM$52.17$22.40$74.57$0.33
USSS05−$5.00
Yesactive
May 18, 202601:03 PM$51.84$22.34$74.18$0.00Yesactive
May 18, 202601:02 PM$51.84$22.34$74.18$5.30
USSS05−$5.00
Yesactive
May 17, 202611:06 AM$57.14$22.40$79.54$0.00Yesactive
May 17, 202611:05 AM$57.14$22.40$79.54$0.00Yesactive
May 16, 202611:12 AM$57.14$22.40$79.54$0.00Yesactive
May 16, 202611:11 AM$57.14$22.40$79.54$0.00Yesactive
May 15, 202610:22 AM$57.14$22.40$79.54$0.00Yesactive
May 15, 202610:21 AM$57.14$22.40$79.54$0.44
SRUS02−$2.00
Yesactive
May 14, 202610:47 AM$56.70$22.43$79.13$0.47Yesactive
May 12, 202609:34 AM$57.17$22.41$79.58InitialYesactive
AliExpress - SIA Tech Store(14 records)
Jul 7, 202607:57 AM$48.09$18.52$66.61$5.93Yesactive
May 29, 202608:41 PM$54.02$18.49$72.51$0.00
SSUS08−$8.00
Noactive
May 28, 202606:08 PM$54.02$18.49$72.51$0.11Noactive
May 27, 202607:01 PM$54.13$18.54$72.67$0.11Noactive
May 23, 202606:56 PM$54.02$18.49$72.51$3.00Noactive
May 22, 202604:44 PM$51.02$18.49$69.51$0.02
USSS05−$5.00
Noactive
May 21, 202604:52 PM$51.04$18.50$69.54$0.00
USSS05−$5.00
Noactive
May 19, 202604:52 PM$51.04$18.50$69.54$0.10
USSS05−$5.00
Noactive
May 18, 202604:48 PM$50.94$18.45$69.39$3.11
USSS05−$5.00
Noactive
May 17, 202602:57 PM$54.05$18.50$72.55$0.00Noactive
May 16, 202602:44 PM$54.05$18.50$72.55$0.00Noactive
May 15, 202601:52 PM$54.05$18.50$72.55$0.02
SRUS02−$2.00
Noactive
May 14, 202604:43 PM$54.07$18.51$72.58$0.00
SRUS04−$4.00
Noactive
May 12, 202612:18 PM$54.07$18.51$72.58Initial
SRUS04−$4.00
Noactive
AliExpress - SiAECOSYS Electric Powertrain Store Store(12 records)
May 29, 202602:02 PM$55.05$18.82$73.87$0.05Noactive
May 28, 202612:30 PM$55.00$18.79$73.79$0.03Noactive
May 27, 202601:49 PM$54.97$18.78$73.75$0.00Noactive
May 25, 202605:49 PM$54.97$18.78$73.75$5.99Noactive
May 23, 202601:52 PM$60.96$18.73$79.69$0.00Noactive
May 22, 202612:30 PM$60.96$18.73$79.69$0.03
USSS05−$5.00
Noactive
May 21, 202612:33 PM$60.99$18.74$79.73$0.00
USSS05−$5.00
Noactive
May 19, 202612:35 PM$60.99$18.74$79.73$0.11
USSS05−$5.00
Noactive
May 18, 202612:34 PM$60.88$18.69$79.57$5.99
USSS05−$5.00
Noactive
May 17, 202610:29 AM$54.89$18.74$73.63$0.00Noactive
May 16, 202610:35 AM$54.89$18.74$73.63$0.06Noactive
May 14, 202609:38 AM$54.95$18.77$73.72InitialYesactive
AliExpress - SiAECOSYS Electric Powertrain Store Store(11 records)
May 29, 202602:01 PM$55.05$18.82$73.87$0.05Noactive
May 28, 202612:29 PM$55.00$18.79$73.79$0.03Noactive
May 27, 202601:48 PM$54.97$18.78$73.75$0.00Noactive
May 25, 202605:47 PM$54.97$18.78$73.75$5.99Noactive
May 23, 202601:50 PM$60.96$18.73$79.69$0.00Noactive
May 22, 202612:29 PM$60.96$18.73$79.69$0.03
USSS05−$5.00
Noactive
May 21, 202612:32 PM$60.99$18.74$79.73$0.00
USSS05−$5.00
Noactive
May 19, 202612:34 PM$60.99$18.74$79.73$0.11
USSS05−$5.00
Noactive
May 18, 202612:33 PM$60.88$18.69$79.57$5.99
USSS05−$5.00
Noactive
May 17, 202610:27 AM$54.89$18.74$73.63$0.00Noactive
May 16, 202610:33 AM$54.89$18.74$73.63InitialNoactive
AliExpress - SIAECOSYS Official Store(15 records)
May 29, 202603:17 PM$55.78$17.71$73.49$0.05Noactive
May 28, 202601:46 PM$55.73$17.68$73.41$0.03Noactive
May 27, 202603:07 PM$55.70$17.67$73.37$0.00Noactive
May 25, 202607:33 PM$55.70$17.67$73.37$0.10Noactive
May 23, 202603:13 PM$55.60$17.62$73.22$3.09Noactive
May 22, 202601:38 PM$52.51$17.62$70.13$0.03
USSS05−$5.00
Noactive
May 21, 202601:41 PM$52.54$17.64$70.18$0.00
USSS05−$5.00
Noactive
May 19, 202601:44 PM$52.54$17.64$70.18$0.09
USSS05−$5.00
Noactive
May 18, 202601:42 PM$52.45$17.59$70.04$3.18
USSS05−$5.00
Noactive
May 17, 202611:45 AM$55.63$17.64$73.27$0.00Noactive
May 16, 202611:51 AM$55.63$17.64$73.27$0.00Noactive
May 15, 202611:01 AM$55.63$17.64$73.27$0.04
SRUS02−$2.00
Noactive
May 14, 202612:00 PM$55.67$17.66$73.33$0.00Noactive
May 14, 202609:38 AM$55.67$17.66$73.33$6.11Yesactive
May 10, 202610:28 AM$61.78$17.62$79.40InitialYesactive
AliExpress - YoMoo Electric Store(12 records)
May 29, 202602:31 PM$50.33$21.27$71.60$0.05Noactive
May 28, 202601:00 PM$50.28$21.24$71.52$0.03Noactive
May 27, 202602:18 PM$50.25$21.22$71.47$0.11Noactive
May 25, 202606:32 PM$50.14$21.17$71.31$0.00Noactive
May 23, 202602:28 PM$50.14$21.17$71.31$0.88Noactive
May 22, 202612:57 PM$49.26$21.17$70.43$0.03
USSS05−$5.00
Noactive
May 21, 202601:00 PM$49.29$21.18$70.47$0.00
USSS05−$5.00
Noactive
May 19, 202601:02 PM$49.29$21.18$70.47$0.11
USSS05−$5.00
Noactive
May 18, 202601:00 PM$49.18$21.12$70.30$0.99
USSS05−$5.00
Noactive
May 17, 202611:03 AM$50.17$21.18$71.35$0.00Noactive
May 16, 202611:09 AM$50.17$21.18$71.35$4.02Noactive
May 3, 202609:08 AM$46.15$21.08$67.23InitialYesactive
AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store(2 records)
Jul 20, 202608:02 AM$47.82$18.56$66.38$0.04Yesactive
Jun 10, 202608:01 AM$47.86$18.55$66.41InitialYesactive

Reviews

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Specifications

Type

VESC Based
No
Cooling
Air

Electrical

Voltage Range
48–72V
Continuous Amps
32A
Peak Amps
37A
Max Phase Amps
130A

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

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
700 g
IP Rating
IP67

Ports & Connectors

Power Input2-position Screw Terminal Block
Power
PinWire colorFunction
1RedBattery +
2BlackBattery -
Phase Wires3-position Screw Terminal Block
Motor Phase
PinWire colorFunction
1YellowPhase A
2GreenPhase B
3BluePhase C
Hall Sensor/
Hall Sensor
PinWire colorFunction
1Red5V Power
2No colorNone
3BlackGround
4YellowHall A
5GreenHall B
6BlueHall C
Function Harness (2×8)
Ignition
Power Switch
PinWire colorFunction
1Gray / PurplePower Switch Signal
Throttle / High Brake / Display
BrakeDisplayThrottle
PinWire colorFunction
1PurpleBrake Signal (High)
2WhiteOne-Wire Comm
3No colorNone
4BlackGround
5GreenThrottle Signal
6Pink5V Power
Three Speed / Sport / Parking
BrakeDisplay
PinWire colorFunction
1Brown / WhiteParking / E-Brake
2Green / WhiteGear Low
3Yellow / WhiteGear Sport
4No colorNone
5BlackGround
6Black / WhiteGear High
Low Brake / Reverse
DisplayBrake
PinWire colorFunction
1No colorNone
2Gray / WhiteGear Reverse
3No colorNone
4Gray / BlackBrake Signal (Low)
Program Port
UART
PinWire colorFunction
1BlackGround
2Pink5V Power
3OrangeUART TX
4BlueUART RX
One Click Repair
COMM
PinWire colorFunction
1No colorNone
2BrownOne-Click Repair
Main Connector
Alarm / Anti-theft Harness (2×4)
Alarm Power
security
PinWire colorFunction
1BlackGround
2RedAlarm Power
Anti-theft Motor Lock
security
PinWire colorFunction
1OrangeAnti-Theft Key
2BlueAnti-Theft Signal
3YellowWheel Signal
4No colorNone
Main Connector

Included Components

Frequently Asked Questions

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