

High voltage rib cooled motors
ABB high voltage rib cooled motors provide the benefits of a small size with high power density, high reliability, efficiency and easy maintenance. Rib cooled motors offer easy configurability and built-in serviceability throughout the product life cycle. Our rib cooled motors are available for both direct on line (DOL) and variable speed drive (VSD) for an even higher efficiency.
Our rib cooled motors are a high efficiency solution for a wide range of applications and industry segments. Rib cooled motors are commonly used in applications such as pumps, fans, blowers, compressors, conveyors, saws and mills. Industries, where rib cooled motors are most commonly used are mining, water, metals, chemical and pulp and paper.
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Key benefits
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Available for variable speed drives (VSD), and thus allowing even higher energy savings
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Safe operation in even the harshest of conditions - high protection level, IP class up to IP66
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Safe area motors can be equipped with digital Smart Sensor, allowing easy access to motor main characteristics
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Optimized and effective cooling allow longer lifetime for bearings and longer lubrication intervals.
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Built-in configurability enables shorter delivery times
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Built-in serviceability enables efficient maintenance reducing downtime and costs

Technical Specifications
HIGH VOLTAGE RIB COOLED MOTORS
Standard
Output power
Shaft height
Number of poles
Ex protection
Voltages
Frequency
Ambient
Cooling
Protection
Enclosure material
Bearings
Mounting
Operating
IEC and NEMA (electrical)
Up to 2.24MW
315, 355, 400, 450, 500, 560 (mm)
2 - 12
Ex ec, Ex eb, Ex tb, Ex pzc, Ex pxb
Up to 11.5KV
50Hz or 60Hz, or VSD
-50°C up to 60°C
Air cooled, External air cooled
Up to IP66
Cast iron
Antifriction or sleeve
Horizontal or vertical
Variable speed drive (VSD), Direct on line (DOL)