ABB 3GJM251220-AEG 3-Phase Squirrel Cage Motor - Exd Flameproof Mining Motor
Part Number: 3GJM251220-AEG
Quick Summary
ABB 3GJM251220-AEG 3-Phase squirrel cage motor delivers reliable power for mining and heavy-duty applications. Operators often face safety concerns, explosion hazards, and downtime in harsh environments, making rugged protection essential. This motor combines flameproof Exd design with Exdb protection, IP66 enclosure, and IC411 insulation, delivering dependable performance under demanding conditions. With IE2 efficiency and a robust cast iron frame, it offers meaningful energy savings and a long service life. In practice, this translates to fewer outages, easier maintenance, and a lower total cost of ownership for underground and surface mining sites. The top-mounted termination box and reversible rotation further simplify installation and belt-drive configurations.
Product Information
ABB Type Designation
M3JM 250SMB 2
Invoice Description
M3JM 250SMB 2
Product Name
3-Phase squirrel cage motor
Product Type
3JM2__M3JM_IE2_Group_I_Flameproof_Exd_mining_motor
Made To Order
No
Minimum Order Quantity
1 piece
Order Multiple
1 piece
Selling Unit of Measure
piece
Country of Origin
Finland (FI)
Customs Tariff Number
85015230
Electrical Data
Temperature Class Default
--
Altitude
1000 m
Ambient Temperature
40 °C
IC Class
IC411
IE Class Data (50 Hz)
IE Class IE2 | Full Load (100%) 93.8 % | Partial Load (75%) 93.9 % | Partial Load (50%) 93.2 %
IP Class
IP66
Insulation Class
ICLF
Direction of Rotation
Both sides
Number of Poles (High)
2
Two Speed Motor
No
Type of Duty
S1
Voltage Code
E
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
250
Bearing
6315M/C3
Bearing NDE
6313M/C3
IM Class
IMB3 IM1001
Terminator Box Location
Top
Package Level 1 Units
0 pallet (lift)
Product Net Weight
514 kg
Gross Weight
524 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Feature: Flameproof protection and rugged enclosure (Exd/Exdb, IP66) → Business Impact: Enhances safety and regulatory compliance in hazardous mining environments, reducing risk of ignition and equipment damage → Application: Suitable for heavy-duty mining drives, crushers, and conveyors in explosive atmospheres. Feature: IE2 efficiency with up to 93.8% full-load efficiency → Business Impact: Lower energy consumption and operating costs over nonstop S1 duty cycles → Application: Continuous mining operations, ore processing lines, and belt conveyors. Feature: Durable cast iron frame (Frame 250) with 6315M/C3 bearings → Business Impact: Extended service life and reduced maintenance in dusty, vibrating sites → Application: Large-scale surface and underground mining installations. Feature: 2-pole high-speed design with S1 duty → Business Impact: High starting torque and robust performance under load, improving uptime at startup → Application: Crushers, pumps, fans, and hoists. Feature: High protection standards (IP66, IC411 insulation) and environmental tolerance (Altitude 1000 m, Ambient 40 °C) → Business Impact: Reliable operation in varied mining climates, with fewer deratings or replacements → Application: Open-pit and underground mining equipment exposed to dust, heat, and altitude. Feature: Top termination box and reversible direction of rotation → Business Impact: Simplified installation, easier wiring, and adaptable belt-drive layouts → Application: Conveyor systems and mixed-drive configurations across mine sites.
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FAQs
This motor is designed for hazardous mining environments, featuring flameproof Exd protection with Exdb, an IP66 enclosure, and IC411 insulation. It supports open-pit and underground installations, with a top-mounted terminal box that simplifies wiring and field maintenance. Its reversible rotation also aids belt-drive alignment during retrofits or new installations.
Key specs include a 2-pole high-speed design, IE2 efficiency with Full Load around 93.8%, Voltage Code E, and S1 duty. The motor weight is substantial (cast iron frame 250), with bearings 6315M/C3 and 6313M/C3 as NDE. It operates up to 1000 m altitude and 40 °C ambient, IP66-protected and insulated to ICLF standards.
Yes. The Exd flameproof design, IP66 enclosure, and IE2 efficiency make it well-suited for conveyors, pumps, and fans in mining operations. Its 2-pole configuration provides strong starting torque, while the top termination box and reversible rotation simplify drive-system integrations and belt-drive layouts in rugged sites.
The motor features flameproof Exd design with Exdb protection, IP66 enclosure, and IC411 insulation class. It is built for mining and hazardous atmospheres, delivering compliance with safety standards and robust protection against dust, moisture, and ignition risks in challenging environments.
Minimum order is 1 piece, with a standard unit sold as a single piece. The top-termination box and robust cast iron frame streamline installation, while the 2-pole, IE2 motor supports reliable operation in continuous duty. Plan for alignment with existing belt drives and ensure adequate cooling in hot, high-altitude locations.