Basic Information

Product Description

1. Overview
The AMI engineered modular induction motors are designed to deliver exceptional reliability and availability in the most demanding and toughest industrial applications. Tailor-made to meet specific customer needs, these motors are built upon the industry's most successful modular platform. They offer the flexibility to adapt 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, and they can be mounted horizontally or vertically. While technical data in catalogs may typically show 50 Hz, these motors operate efficiently at both 50 Hz and 60 Hz, with synchronous speeds ranging from 500 to 3600 rpm. Output powers covered in standard catalogs reach up to 8,000 kW, with the complete range extending up to 23,000 kW.

2. Mounting Arrangements
Standard mounting configurations are provided to suit various installation needs:

• IM B3 (Code II: IM 1001): Horizontal foot mounted.
• IM V1 (Code II: IM 4011): Vertical flange mounted (free shaft end facing downwards).
• Note: Other mounting arrangements are available upon request.
• 3. Enclosure and Cooling Systems
  AMI motors are available with multiple standard cooling methods and protection types to ensure optimal performance in diverse environments:
• IC01 / IP24W (Weather Protected): Features a shaft-mounted cooling fan inside the housing. The air intake path is engineered with three acute direction changes (exceeding 90 degrees) and maintains an average velocity below 3 m/s. This design allows heavier airborne particles to settle, effectively reducing the ingress of rain, snow, and debris while protecting against splashing water from any direction.
• IC611 / IP55 (Air-to-Air Heat Exchanger): A fully enclosed design utilizing an air-to-air heat exchanger. Shaft-mounted fans are fitted both inside and outside the casing to supply independent internal and external cooling circuits. It provides complete protection against dust and splashing water.
• IC81W / IP55 (Air-to-Water Heat Exchanger): A fully enclosed motor equipped with an air-to-water heat exchanger. An internal shaft-mounted fan supplies the internal cooling circuit, offering superior protection against dust and splashing water.
• IC31 / IP55 (Remote Cooling Air): Fitted with inlet and outlet pipes to utilize remote cooling air. This version essentially consists of the AMI motor frame without an upper cover, maintaining full protection against dust and splashing water.
• 4. Packaging
  To ensure safe transit, all motors are shipped in standard seaworthy packaging suitable for long-distance transportation by sea or land. Options include plywood packages or wooden fumigation packages.
• 5. Warranty Period
• Standard Warranty: 12 months after commissioning, or 18 months after delivery, whichever occurs first.
• Extended Warranty: Extensions to the warranty period are available; please contact us for further details.