AuCom Soft Starters
Advanced Motor Control - NZ's Authorised Stockist of AuCom Soft Starters

AuCom EMX4 Soft Starter

Advanced soft starting, motor protection and application control with expandable Smart Card capability.

Available EMX4 Stock in NZ

Like its predecessor, the AuCom EMX4 Soft Starter sets new standards for soft start technology. The AuCom EMX4 is not only smaller, more powerful and packed with new control and protection features, it also introduces the game-changing Smart Card capability. Fitting a Smart Card to the AuCom EMX4 transforms it from super smart motor controller to complete system controller. This is truly a starter for the future.

The AuCom EMX4 includes starter, motor and system protection functions, complete with alarms to alert you to any potential issues. In the event that the worst does happen, Power Through and Emergency Run functions give you the power to choose to keep running.


Easy to use

Smart does not have to mean complex. While the AuCom EMX4 offers more functionality than ever before, it has been designed to make your life easier. By enhancing the display and connectivity functions, and making them intuitive, it is easier to access the right information when you need it, enhancing your overall efficiency.

Smart Card application control

The AuCom EMX4 Smart Card redefines the role of a soft starter. With the appropriate Smart Card installed the AuCom EMX4 is able to operate as an entire system controller. Smart Cards deliver industry or application specific functionality and are easily inserted into the AuCom EMX4, simplifying system design, installation and set-up.

What is the AuCom EMX4 soft starter?

The AuCom EMX4 is an advanced motor soft starter designed for controlled motor starting and stopping, motor and system protection, communications and application-specific control. Its expandable Smart Card capability allows additional functions to be added for selected industries and control requirements.

Where is the EMX4 used?

The EMX4 is suited to demanding fixed-speed motor applications where advanced control, protection or system integration is required. Typical duties include pumps, conveyors, irrigation systems and other industrial motor-driven equipment.

Why choose the AuCom EMX4?

The EMX4 combines advanced soft-start control with motor and system protection, communications, flexible I/O and Smart Card expansion. For applications that do not require continuous speed control, the soft starter provides controlled starting and stopping without the continuous conversion losses associated with a VFD.

What is the AuCom EMX4 Pump Card?

The EMX4 Pump Card is an optional smart card for the EMX4 soft starter that adds additional IO and logic to enable the EMX4 to provide an enhance suite of pump control functionality.

The Key Features are :

Auto Start/Stop : The pump is run automatically depending on changes in pressure, well/pond depth or based on preprogrammed timing schedules.
System Protection : The pump is protected against abnormal operation and premature failure due to pressure, flow and dry run errors.
Integrated Control : The pump card combines pump performance monitoring, protection and automation into the EMX4 soft starter control system.

AuCom EMX4 FAQs

What is an EMX4 Smart Card?

A Smart Card is an expansion option that adds application-specific or industry-specific functionality to the EMX4. This can allow the soft starter to perform additional control and monitoring tasks and may simplify system design and integration.

Does the EMX4 provide motor protection?

Yes. The EMX4 includes motor, starter and system protection functions together with alarms and operational features designed to help manage abnormal conditions.

Can the EMX4 communicate with industrial control systems?

Communication options shown for the EMX4 include DeviceNet, Modbus, Profibus, ProfiNET and Ethernet, allowing integration into common industrial automation networks.

Is EMX4 stock available in New Zealand?

Current New Zealand EMX4 stock and accessory availability is listed below, with each item linked directly to the contact page for enquiries.

EMX4 supply voltages and power range

  – 3 x 200V – 525V
  – 3 x 380V – 600V
  – Model power/current range varies by configuration; contact AMC for selection.


Common EMX4 applications

  – Pumping
  – Conveyors
  – Irrigators


EMX4 features and benefits

– Compact size
– Essential motor protection
– Communications (DeviceNet, Modbus, Profibus, ProfiNET or Ethernet)
– Finger guards
– I/O expansion

Available AuCom EMX4 stock in New Zealand
Updated: September 16, 2026

Available AuCom EMX4 accessories in New Zealand
Updated: September 16, 2026
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