Low Voltage Soft Starters

AuCom EMX3

The EMX3 introduces a new generation in soft start technology: XLR-8, Adaptive Acceleration Control. XLR-8 offers an unprecedented level of control over motor’s acceleration and deceleration profiles. Using XLR-8, the soft starter learns the motor’s performance during start and stop, then adjusts control to optimize performance. The EMX3 soft starter is smart, dependable and easy to use. New design features make the EMX3 the perfect solution for quick set-up or more customized control. EMX3 Soft starter can be used in marine.

  • Features
  • Specifications
  • Applications
  • Accessories
  • Video


  • Flexibility
  • Intuitive Interface
  • A Human Interface
  • Quick Setup
  • Large viewable monitoring Screens , Logs and Counters
  • Status LEDs for immediate feedback.
  • Start, stop, reset, local/remote push buttons.
  • Extensive Input/Output
  • Compact Physical Design
  • Easy Access Cabling
  • Bypass (Built-in, Externally, Internally)
  • Adjustable Busbars
  • IP65 removable keypad.
  • Communication Modules and
  • Software Tools


Mains voltage

: 200 VAC ~ 440 VAC or
  380 VAC ~ 690 VAC

Current Range

: 4.6 A ~ 2400 A

kW Range

: 2.2 ~  1000 kW (3 ~ 1340 HP)

Motor connection

: Inline or inside-delta


: Integrated internal or external

Mains frequency

: 45 ~  66 Hz



  • Marine
  • Pumping
  • Low inertia loads
  • High inertia loads
  • Low inertia loads - pumping or conveyors
  • High inertia loads - Circular saws, ball mills
  • Compressors (for optimizing blade control)
  • Bandsaws (easy blade alignment)
  • Irrigators (built-in timer)


Communication modules

EMX3 supports network communication using
  • Ethernet (Profinet, Modbus TCP, Ethernet/IP)
  • Profibus,
  • DeviceNet,
  • Modbus RTU or
  • USB protocols,
via easy-to-install communication interfaces.

Remote control panel

Full graphical LCD display. Replicate built-in display functionality and content Operate in parallel to built-in EMX3 display and interface Parameter Upload/Download capable -Transfer parameters between EMX3 soft starters. Can be removed and attached while soft starter is running. Remote mountable keypad with up to 3m cable IP65 capable (with supplied mounting kit.)

Input/output card

These hardware expansion cards suit users who require additional inputs and outputs or advanced functions. Each EMX3 can support one expansion card.
  • The input/output expansion card adds:
  • 2 x inputs
  • DeviceNet,
  • 3 x relay outputs
  • 1 x analog input
1 x analog output

PC Software

Using AuCom's custom designed WinMaster software you can control, monitor and program setup, (upload and download parameters) your EMX3 from your desktop computer. Modbus or USB communication module is required for each soft starter to use WinMaster software.

Finger Guard kit

This option ensures personnel safety by preventing accidental contact with live terminals The finger guard kit fits the EMX3-0145B to EMX3-0220B and provides IP20 protection when used with 22 mm plus size cables.

RTD and ground fault

The RTD and ground fault protection card provides the following additional inputs:
  • 6 x PT100 RTD inputs
  • 1 x ground fault input
To use ground fault protection a 1000:1, 5 VA current transformer is also required.

Adjustable bus bars

The bus bars on models EMX3-0360C ~ EMX3-1600C can be adjusted for top or bottom input and output as required. This flexibility allows you optimization of your switchboard layout.