Soft Starter header

AuCom Electronics EMX4i Soft Starter


The EMX4i 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 optimise performance.

The EMX4 soft starter is smart, dependable and easy to use. New design features make the EMX4 the perfect solution for quick set-up or more customised control.

Easy to use

While soft starters are becoming increasingly feature-rich, AuCom has taken steps to ensure that commissioning, operation and fault finding are still quick and easy. Quick setup mode gets machinery running in next to no time, and informative screens give real-time feedback on motor performance.

Compact size

EMX4 starters are amongst the smallest in their class, saving installation costs by minimising panel space requirements. The design of the EMX3 allows for multiple units to be mounted side by side, or in a bank of starters due to the flexibility in cabling options. Internally bypassed starters further reduce the overall size of your installation.


The EMX4 soft starter has been designed for maximum flexibility in a wide range of applications. Whether you need to integrate into a network or respond to external signalling equipment, need reliable protection for your motor or just need a compact, versatile and cost-effective motor starting solution, the EMX4 offers the features you need in a product you can trust.


The EMX4 soft starter is available ex stock in New Zealand for same day dispatch from the New Zealand office of Advanced Motor Control Ltd.


EMX4i Family

Model Light Medium Heavy Severe
EMX4i-0024B 24 A 20 A 18 A 16 A
EMX4i-0042B 42 A 34 A 31 A 27 A
EMX4i-0052B 52 A 41 A 39 A 35 A
EMX4i-0064B 64 A 60 A 62 A 52 A
EMX4i-0069B 69 A 69 A 69 A 62 A
EMX4i-0105B 105 A 85 A 83 A 68 A
EMX4i-0115B 115 A 107 A 103 A 85 A

135 A

129 A

125 A

102 A


184 A

142 A

138 A

115 A

EMX4i-0200B 200 A 170 A 163 A 137 A
EMX4i-0229B 229 A 193 A 171 A 151 A
EMX4i-0250B 250 A 243 A 227 A 204 A
EMX4i-0352B 352 A 285 A 264 A 210 A
EMX4i-0397B 397 A 323 A 297 A 227 A
EMX4i-0410B 410 A 410 A 410 A 381 A
EMX4i-0550B 550 A 525 A 500 A 423 A
EMX4i-0580B 580 A 580 A 550 A 470 A



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