VOTOL EM30SP (LIN)
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.</description> <parameter name="adminNotes">Source: AliExpress (SIAECOSYS SIA Tech Store + Zhejiang Siaecosys Technology direct listings) + community data. Specs: 32A rated / 37A boost / 48-72V / 1000W / IP67 / LIN / 40KPH top speed per SIAECOSYS product description. Phase peak estimated at ~130A (VOTOL doesn't publish the full spec sheet). VOTOL product page is currently dead (votol.cn/product/votol-em-30s/ returns 404) — specs captured from multiple SIAECOSYS-direct AliExpress listings. The EM30SP and EM30S names are used interchangeably by sellers; current production appears to use "EM30SP" naming on VOTOL's distribution channel (SIAECOSYS). **Wiring (admin-verified 2026-04-18):** EM30SP housing has the full 3 Molex header architecture (function 2×8, alarm 2×4, hall 2×3) — standard Wiring A. Includes alarm/anti-theft support (unlike EM25P which lacks it).
In brief: 48–72V controller. 32A continuous. 37A peak. Sinewave, sensored, regen, field weakening support. From $54 across 2 sellers.
Type
- VESC Based
- No
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
- 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
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
- 700g





