Low voltage flameproof motors

ABB low 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 safety, high efficiency and sustainability. They are designed to operate reliably in harsh environments such as in 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, gas and chemical industries.

Key features

  • Safe choice for potentially explosive atmospheres
  • Ex db with both flameproof cast iron frame and terminal box
  • Ex db eb with flameproof cast iron frame and increased safety terminal box
  • Certified for gas groups IIB and IIC
  • Temperature class T4, optional T5, T6

Product offering

Low voltage Flameproof  motors
Variables Flameproof motors & Flameproof motors for underground mining
0.18–950 kW 
Frame size IEC 80 to 450
Type M3JP, M3KP , M3JM (for underground mining)
Marking  Ex db IIB or C T4 Gb, Ex db I Mb
Efficiency class IE2, IE3, IE4
230-690V 50/60Hz
Supply Direct on-line and VSD
Mounting  B3, B5, B14, B34, B35 
Ambient temperature  -55°C - +60°C 
Cooling  IC411 as standard
IP55 (optionally IP56, IP65 and IP66)
Certification IECEx and ATEX certified range, wide range of local certificates available

Tools and services

ABB Optimizer

An online tool that helps you to find the optimal electrical motor for any MEPS worldwide. It also help you to compute the cost of ownership of different motors and get fast access to marketing documents and drawings, test reports and data sheets.


Drive and motor selector

Instead of flipping through paper catalogs or databases of datasheets, find the drive, softstarter or motor you need based on a series of simple questions.

Drive and motor selector

ABB Access 

Scan the QR code to access 24/7 self-services
ABB Access, helps you easily find up-to-date product online data. It also provides easy access to documentation and manuals. If you happen to experience issues with your ABB product, this can be fastly and easily reported online to reach expert support from ABB.

ABB Access

ABB Ability™ Smart Sensor for motors

The ABB Ability™ Smart Sensor converts traditional motors into smart, wirelessly connected devices. It is attached to the frame of the motor; no wiring or machining is needed. Using algorithms, based on ABB’s decades of motor expertise, the ABB Ability™ Smart Sensor relays information about the motor's operation and health via a Bluetooth-gateway or smartphone to a secure server.

ABB Ability™ Smart Sensor for motors


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