Basic Information

Product Description

Modular Induction Motors, Type AMI

The AMI engineered modular induction motors are designed to deliver exceptional reliability and availability, even in the most demanding and challenging industrial applications. Built upon the industry's most successful modular platform, these motors are tailor-made to meet specific customer needs. They offer the flexibility to be adapted to highly specific configurations while complying with all relevant international standards.

Available for both direct-on-line (DOL) and variable speed drive (VSD) operation, AMI motors feature a robust welded steel frame. Standard shaft heights range from 400 to 630 mm, with options for horizontal or vertical mounting. While this catalog highlights technical data at 50 Hz, these motors are fully operational at both 50 Hz and 60 Hz, providing synchronous speeds from 500 to 3600 rpm. Output powers covered in this catalog reach up to 8,000 kW, with the complete product range extending up to 23,000 kW.

Mounting Arrangements

Standard mounting configurations for AMI motors include:

• Code I: IM B3 / Code II: IM 1001: Horizontal foot-mounted.
• Code I: IM V1 / Code II: IM 4011: Vertical flange-mounted (free shaft end facing downwards).
• Note: Other mounting arrangements are available upon request.

Enclosure and Cooling Options

AMI motors are available with a variety of standard cooling methods and protection types to suit different environmental conditions:

1. IC01 / IP24 (Weather Protected)
This design features a shaft-mounted cooling fan inside the housing. The air intake path is engineered with three acute direction changes exceeding 90 degrees, ensuring the average air velocity does not exceed 3 m/s. This allows heavier particles to settle and protects the motor against rain, snow, airborne particles, and splashing water from any direction.

2. IC611 / IP55 (Air-to-Air Heat Exchanger)
A fully enclosed design featuring an air-to-air heat exchanger. Shaft-mounted fans are installed on both the inside and outside of the casing to manage separate internal and external cooling circuits. This configuration provides complete protection against dust and splashing water.

3. IC81W / IP55 (Air-to-Water Heat Exchanger)
This fully enclosed motor utilizes an air-to-water heat exchanger. A shaft-mounted fan inside the casing supplies the internal cooling circuit, offering superior protection against dust and splashing water in harsh environments.

4. IC31 / IP55 (Remote Cooling Air)
Equipped with inlet and outlet pipes for remote cooling air, this version essentially consists of the AMI motor frame without an upper cover. It maintains full protection against dust and splashing water while allowing for external air management.

Packaging

All motors are shipped in standard seaworthy packaging suitable for long-distance transportation by sea or land. Options include:

• Plywood package
• Wooden fumigation package

Warranty Period

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