ABB Motors

HT Motors

ABB’s latest generation of multipurpose rib cooled motors offer high power density, easy configurability and built-in serviceability. The motors are based on the successful, high performance rib cooled motor range, type HXR. They incorporate experience ABB has gained over more than 100 years of manufacturing electric motors.

ABB’s high voltage rib cooled motors are available as N-series general purpose motors (type NXR) and A-series engineered motors (type AXR). N-series general purpose motors combine cost efficient standardized designs and short lead times with safety, productivity, energy efficiency and reliability. They are targeted at applications where a highly customized motor is not needed. A-series engineered motors are highly customized, fine-tuned to the customer’s precise needs, and offer a high degree of engineering flexibility.

Versions are available for both direct-on-line (DOL) and variable speed drive (VSD) operation.

Key features and benefits

• High efficiency for reduced cost of running

• High power density for more watts per kilogram than ever before with rib cooled designs

• Optional ingress protection level available up to IP66

• Compact size for smaller overall installations

• Rigid, weight-optimized frame is engineered to minimize vibration

• Fixing points make accessory fitting straightforward

• Cable tray for auxiliary wiring ensures clear cable routing, which keeps the airflow free and ribs easy to clean

• Flexible repositioning of main terminal box on site by ABB service personnel

• Interchangeable terminal boxes reduce need for spare motors

• Built-in serviceability features reduce downtime and cost of not running

• Designed for easy deployment of ABB  condition monitoring systems

• Versions optimized for VSD operation can deliver even higher efficiency

• Optimized ABB motor and VSD packages are easy to install and operate

• 3D models available on request

• Based on more than 100 years of experience manufacturing electric motors

Output power	100 to 1800 kW
Frame size	315 to 500
Number of poles	2 to 12
Voltages	Up to 11.5 kV
Frequency	50/60 Hz, VSD
Cooling	I C411, I C416
Protection	IP55 (optionally IP56, IP65 and IP66)
Enclosure material	Cast iron
Bearings	Antifriction or sleeve
Motor types	NXR and AXR
Mounting	Horizontal or vertical (vertical mounting available for frame sizes 450 and 500)
Ex protection types	Ex ec (previously Ex nA), Ex eb (previously Ex e), Ex tb, Ex pxb, Ex pzc
Standards	IEC (electrically NEMA feature available)
Compatible VSDs	ABB LV drives ACS580, ACS800 and ACS880, ABB MV drives ACS1000 and ACS2000