ABB high voltage flameproof motors are a safe choice for potentially explosive atmospheres. Our flameproof motors are designed to withstand the pressure caused by an internal explosion without incurring any damage as well as prevent flame propagation outside of the enclosure.
Flameproof motors are based on reliable designs and provide high productivity in demanding conditions. Our flameproof motors combine the benefits of a compact size with high power density, high efficiency and safety. Flameproof motors are designed to operate reliably in harsh environments such as extreme temperatures, corrosive dust and humidity.
Our flameproof motors are certified for gas groups IIB and IIC and meet all relevant international standards, including IEC, European (EN) and ATEX and the most important specifications for the oil and gas industry.
Standard IEC, EN and NEMA electrical
Output power Up to 1,6 MW
Shaft heights 355 to 500
Number of poles 2 to 18
Ex protection Ex db, Ec db eb, Ex tb, Ex db l Mb
Gas/dust group I, IIB, IIC, IIIC
Voltages Up to 11 kV
Frequency 50 / 60 Hz or VSD
Ambient -20°C to 40°C (as an option down to -55°C and up to 60°C)
Cooling IC411, IC416
Protection IP55 (optionally up to IP66)
Enclosure material Cast iron
Bearings Antifriction or sleeve
Mounting Horizontal or vertical
Operating Variable speed drive (VSD), Direct on line (DOL)
Output power Up to 7,5 MW
Shaft heights 500 to 900
Ex protection Ex db, Ec db eb
Gas/dust group IIB full range/ IIB+H2 for 710 / IIC for 500
Ambient -20°C to 40°C (as an option down to -50°C and up to 60°C)
Cooling IC511, IC516
Protection IP55 (IP56 as option)
Enclosure material Welded steel
power range
voltage
protection class
number of poles from 2 to 18
shaft height
frequency
IC 411, IC 416
direct on line or variable speed drive
Ex db, Ex db eb, Ex tb, Ex db I Mb
I, IIB, IIC, IIIC
cast iron
horizontal or vertical
Designed contain an internal explosion and prevent flame propagation, making them a safe choice for hazardous areas.
Compliant with IIB and IIC gas groups and all key global standards, including IEC, EN, ATEX, and major oil and gas specifications.
Engineered to operate in extreme temperatures, corrosive dust, humidity, and other harsh industrial conditions.
Combines compact motor size with best-in-class power density and high efficiency.
Flameproof (Ex d) motors do not require additional gas supply systems, pre-start purging, or piping – reducing installation cost and complexity.
Developed to meet the key requirements of major industry specifications and to support standardized, risk-free implementation worldwide.
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