Product Attributes

1. Product Description

Modular Induction Motors, Type AMI
High Reliability and Availability

AMI engineered modular induction motors are designed to provide exceptional reliability and availability in the toughest and most demanding industrial applications. These motors are tailor-made to meet the specific needs of each customer and application. Built upon the motor industry's most successful modular platform, they match a broad variety of demanding application requirements while offering the flexibility to be adapted to highly specific configurations.

AMI modular induction motors comply with all relevant international standards. Versions are available for both direct-on-line (DOL) and variable speed drive (VSD) operation.

Key Technical Features:

• Frame Design: AMI motors feature a robust welded steel frame.
• Cooling & Protection: Standard cooling methods and protection types include IC01 / IP24W, IC611 / IP55, and IC81W / IP55.
• Dimensions: Standard shaft heights range from 400 to 630 mm.
• Installation: Motors can be mounted horizontally or vertically.
• Frequency & Speed: While technical data is typically referenced at 50 Hz, these motors operate seamlessly at both 50 Hz and 60 Hz, with synchronous speeds ranging from 500 to 3600 rpm.
• Power Range: Output powers covered in this catalogue reach up to 8,000 kW, with the complete series extending up to 23,000 kW.

2. Mounting Arrangements

Standard mounting arrangements for AMI motors are listed below. Other custom mountings are available upon request.

• IM B3 (Code II: IM 1001): Horizontal foot-mounted.
• IM V1 (Code II: IM 4011): Vertical flange-mounted (free shaft end facing downwards).

3. Enclosure and Cooling Options

AMI motors offer versatile enclosure and cooling configurations to suit various environmental and operational demands:

IC01 / IP24 (Weather Protected)
This weather-protected motor features a shaft-mounted cooling fan inside the housing. Its design minimizes the ingress of rain, snow, and airborne particles into the electrical components. The air intake path is engineered so that the average velocity does not exceed 3 m/s, allowing heavier particles to settle. The intake path includes three acute direction changes in excess of 90 degrees to further reduce flow rate to optimal levels. The motor is fully protected against splashing water from any direction.

IC611 / IP55 (Air-to-Air Heat Exchanger)
This fully enclosed design utilizes an air-to-air heat exchanger mounted on the motor. Shaft-mounted fans are fitted both inside and outside the casing to supply independent internal and external cooling circuits. It provides comprehensive protection against dust and splashing water from any direction.

IC81W / IP55 (Air-to-Water Heat Exchanger)
This fully enclosed motor is equipped with an air-to-water heat exchanger. A shaft-mounted fan inside the casing supplies the internal cooling circuit. Like the IC611, it offers complete protection against dust and splashing water from any direction.

IC31 / IP55 (Remote Cooling Air)
This version is fitted with inlet and outlet pipes to utilize remote cooling air. Essentially, this is the AMI motor frame without an upper cover, providing protection against dust and splashing water from any direction.

IC01 (Asymmetric Air Circulation)
This variant features IC01 cooling with an asymmetric inside air circulation design for specialized thermal management.

4. Packaging

To ensure safe transit, all AMI motors are shipped in standard seaworthy packages suitable for export. Options include plywood packaging or wooden fumigation packaging, making them highly suitable for long-distance transportation by sea or land.

5. Warranty Period

• Standard Warranty: 12 months after commissioning, or 18 months after delivery, whichever comes first.
• Extended Warranty: Extended warranty periods are available. Please contact us for further details and customized warranty solutions.