SL controller series

Up to 84V (20S Lithium battery), up to 24,5 kW nominal power, up to 36,6 kW peak power.

The SL is automotive grade controller from ESC3 family, it can deliver maximum power whilst keeping weight as low as possible. It can be used in wide range of applications, especially in industrial and automotive. Using the most modern technologies it achieves extreme dynamics, maximum efficiency, sensorless control or regenerative braking, all kinds of protection or galvanic isolation, all this with minimum dimensions. The SL controller is capable of driving all common types of electric motors.


  • Automotive or Industrial motor control
  • Hi-end sport motorbikes, e-bikes
  • Combustion engine starter-generator
  • Research & development
  • Servo drive

Product Information

Standard of the shelf product HW variant: SL_48exa1060-400_AFFFG-600BM

Items marked with * are not supported by the standard HW variant


  • Motors: PMSM (BLDC, BLAC), Induction
  • Vector drive with DTC and FOC
  • Block commutation Drive with DTC and hybrid sensorless control
  • Zero-RPM sensorless control
  • MOS-FET power stage with all kinds of protection incl. phase short circuit
  • Designed for highest dynamic response
  • SOC estimator
  • Current and voltage logging
  • Capacitors pre-charge option

Motor sensors

  • Motor temperature input
  • Option “a” – UVW Hall sensors; Sin-Cos
  • Option “r” – SSI / BiSS;  A/ B encoder; resolver *

Control I/O

  • 4x analog input – ADIN (range from 0V to BATT+)
  • 5x galvanically isolated analog inputs (range from 0V to 10V)
  • On / Off input switch, safety switch, automatic shutdown
  • Capacitor pre-charge
  • 3x contactor output with PWM and current control
  • Charge input up to 15 A with current measurement *

For pinout, please check the corresponding datasheet in the download section.


  • Power: M6 terminals
  • Signals & communication: AMPSEAL 35-pin male connector
  • USB-B conector


  • Multiple addressed interfaces for service, debugging, application and firmware management
  • USB
  • UART (galvanically isolated)
  • CAN-bus (galvanically isolated)

Mechanical characteristics

  • Box with aluminium bottom pad: 148 x 96 x 64 mm
  • Weight: 1100
  • Drawing and 3D model in download section

Options with * are extra paid features.

Firmware options

Electrical parameters

Power configuration*0660*08601060
Battery nominal voltage43 V DC 58 V DC72 V DC
Battery configuration12 S16 S20 S
Min. operating voltage24 V DC24 V DC24 V DC
Max. operating voltage51 V DC68 V DC84 V DC
Nominal power (60min, BLDC)17 700 W21 300 W24 500 W
Nominal current (60min, BLDC)410 A370 A340 A
Power dissipation300 W 1300 W 1300 W 1
Peak power (10sec)25 900 W28 800 W36 000 W
Peak current (10sec)600 A500 A500 A
¹ Controller bottom pad thermally connected to infinite heatsink which does not exceed 60°C
* Variants 0660 and 0860 are available only on request

3D model

Rotate object continuously on button click. Zoom in and out using the mouse wheel.

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