1. Features and Applications

The document details electric motor features including housing materials (aluminum, cast iron), bearing types, and cable gland sizes. It emphasizes "ECOL" motors designed for various mounting types (IM B3, IM B35) and applications such as pumps, generators, and general industrial use.

2. Mechanical Dimensions and Installation

A comprehensive table lists frame sizes (80 to 355) with key mechanical parameters: shaft diameters, mounting hole sizes, overall lengths, bearing types, and cable gland dimensions. This ensures proper fit and compatibility during installation.

3. Bearings and Cable Glands

• Bearing types vary by frame size, ranging from 6204ZZ to 6322C3 and NU319 to NU322.
• Cable gland sizes increase with frame size, from M20×1.5 up to M63×1.5, with larger motors having multiple glands.

4. Motor Performance Data

Performance data is provided for motors with 2, 4, and 6 poles (synchronous speeds of 3000, 1500, and 1000 rpm at 50 Hz). Parameters include:

• Model and power rating (kW)
• Full load speed (rpm)
• Starting and full load current at 400V
• Starting current ratio (Ist/In)
• Efficiency at full load (%)
• Power factor (CosΦ)
• Full load torque (N·m)
• Torque ratios (starting, minimum, maximum relative to nominal torque)

Data is segmented by efficiency classes IE1, IE2, and IE3, showing improved efficiency and power factor with higher classes.

5. Efficiency Classes and Technical Specifications

Motors are categorized into IE1, IE2, and IE3 efficiency classes. Higher classes demonstrate:

• Lower current draw
• Efficiency up to 96%
• Power factor improvements up to 0.91
• Torque characteristics suitable for diverse load conditions

6. Motor Categories and Standards

• IE3 Efficiency Motors: High-efficiency, available in 2, 4, 6, and 8 poles.
• M EPS2 (Australian Efficiency 1) Motors: Comply with Australian standards, detailed by pole count.
• Premium Efficiency Motors (M EPS2 Aus): Enhanced performance motors.
• IEC Frame - NEMA EPACT Efficiency TEFC Motors: Designed for 50 Hz and 60 Hz operation, meeting NEMA standards.

7. Electrical and Mechanical Specifications

• Power ratings from 0.75 kW to 315 kW.
• Full load speeds vary by pole count and frequency (e.g., ~3550 rpm for 2-pole at 60 Hz).
• Starting current multiples range from 0.7 to 1.1 times rated current.
• Starting torque ratios between 1.4 and 2.1 times rated torque.
• Efficiency ranges from 80% to over 96%, compliant with NEMA Premium standards.
• Power factor typically between 0.75 and 0.92.
• Full load torque increases with power rating, up to 2000+ N·m.

8. Pole and Frequency Effects

Motor speed and torque characteristics depend on pole count and supply frequency. For example, 2-pole motors run near 3550 rpm at 60 Hz, 4-pole near 1750 rpm, and 6-pole near 1150 rpm. Corresponding speeds are lower at 50 Hz.

9. Performance Ratios and Application Considerations

• Starting current to rated current (Ist/In) and torque ratios (Tst/Tn, Tmin/Tn, Tmax/Tn) guide motor selection for starting and load conditions.
• Ensures motors can handle mechanical load demands and electrical supply constraints.

10. Recommendations and Best Practices

• Select motor frame size based on mechanical and bearing requirements.
• Choose cable gland size appropriate to frame and installation environment.
• Consider efficiency class (IE1 to IE3) for energy savings and performance.
• Review torque ratios to ensure safe starting and operation under load.
• Match voltage and frequency ratings (400V/50Hz or 460V/60Hz) to supply conditions.
• Use detailed tables to align motor specifications with application needs and standards compliance.

11. Summary of Critical Parameters

Parameter	Typical Range / Values	Notes
Power (kW)	0.75 to 315	Wide industrial range
Full Load Speed (r/min)	~3550 (2-pole), ~1750 (4-pole), ~1150 (6-pole)	Depends on pole count and frequency
Starting Current (Ist/In)	0.7 to 1.1 times rated current	Indicates inrush current magnitude
Starting Torque (Tst/Tn)	1.4 to 2.1 times rated torque	Important for load starting
Efficiency at Full Load (%)	80% to 96.2%	High efficiency per NEMA Premium
Power Factor (CosΦ)	0.75 to 0.92	Indicates electrical load quality
Full Load Torque (N·m)	Up to 2000+ N·m	Mechanical output capability

This document is a comprehensive technical reference for selecting, installing, and applying electric motors in industrial environments, emphasizing mechanical compatibility, electrical performance, and energy efficiency standards.