Buy 415V Three Phase Motors Online in Australia
415V Three Phase Motor Selection — Quick Reference (IEC)
415V 3-phase induction motors are the industrial workhorse — pumps, fans, compressors, conveyors. Selection turns on power (kW), frame (aluminium vs cast iron), efficiency class (IE2/IE3/IE4), and mounting (foot vs flange).
| Spec | Range | Selection Driver |
|---|---|---|
| Power Rating | 0.18 kW – 250 kW typical AIMS | Match driven load + service factor 1.15 for variable |
| Frame Type — Aluminium (TAI) | 0.18 kW – 22 kW | General industrial — lighter, IE2/IE3 efficiency |
| Frame Type — Cast Iron (TAC) | 0.55 kW – 250 kW+ | Heavy industrial, foundries, severe service — robust frame |
| Efficiency IE2 | All sizes | Australian minimum for most applications — meets MEPS |
| Efficiency IE3 (Premium) | Most sizes | Long-running drives — typically 2-3 year ROI on energy savings |
| Mounting B3 (Foot) | Per frame | Standard horizontal floor + base mount |
| Mounting B5 (Flange — Round Holes) | Per frame | Close-coupled pumps + gearboxes |
| Mounting B14 (Flange — Tapped Holes) | Per frame | Smaller close-coupled assemblies |
| Pole Count (Speed @ 50Hz) | 2P=2,900 / 4P=1,440 / 6P=960 / 8P=720 RPM | Match driven RPM — VFDs allow speed adjustment |
Critical: Standard motors are 415V 50Hz 3-phase per AS 60034 / IEC 60034. Match starting method to motor + load (DOL for small, soft-start or VFD for ≥7.5 kW + variable load). Check ambient temp rating (40°C standard, derate at higher). Brand: TechTop (TAI aluminium, TAC cast iron). Companion: all motors, VFDs, electric motor guide.
415V Three Phase Electric Motors
AIMS Industrial stocks TechTop 415V three phase induction motors in aluminium and cast iron frame construction for general industrial use. Three phase motors are the workhorse of industrial power, delivering reliable, efficient and low-maintenance operation across pumps, fans, compressors, conveyors and general machinery.
Aluminium Frame (TAI Series)
TechTop TAI aluminium frame 415V motors deliver IE2/IE3 efficiency in a lightweight, corrosion-resistant housing. The aluminium frame provides good thermal conductivity for heat dissipation without the weight of cast iron. Suitable for the vast majority of general industrial applications. B3 foot mount (IEC standard) is the primary mounting configuration; flange mount options include B5, B14 and others to suit direct coupling and close-coupled pump and fan applications.
Cast Iron Frame (TCI Series)
For applications with heavy vibration, shock loads, elevated temperatures or chemically aggressive environments, the TCI cast iron motor provides superior mechanical robustness and thermal mass. Cast iron frames are specified for compressors, crushers and other high-vibration duty equipment where aluminium frames may be prone to fatigue.
Brake Motors (TAI-BHR)
The TAI-BHR brake motor series integrates a spring-applied DC brake for applications requiring controlled deceleration or load holding. Typical applications include conveyor systems, hoists and positioning drives where inertial run-on after power removal is unacceptable.
Pole Configuration & Speed
2-pole motors run at approximately 2900 RPM and suit high-speed applications such as pumps and fans. 4-pole motors at approximately 1460 RPM are the most common selection for general industrial drives. 6-pole motors at approximately 960 RPM suit lower-speed applications where a direct drive arrangement is preferred over a speed reduction stage.
Motor Selection
Specify the required kW output, pole number, frame size and mounting configuration. IE3 premium efficiency motors are increasingly required for new installations under Australian energy efficiency regulations. Contact our team for assistance with selection, cross-referencing an existing motor or identifying a direct replacement.