ABB 3GJM281220-AEK Motor - Flameproof IE3 Mining Motors
Part Number: 3GJM281220-AEK
Quick Summary
ABB 3GJM281220-AEK motor is a flameproof, IE3‑efficient 75 kW drive designed for demanding mining and heavy industry applications. Operators often struggle with downtime and overheating when equipment isn’t built for hazardous locations; this motor delivers robust IP66 protection and reliable performance in challenging sites. It combines Exdb flameproof protection, IP66 enclosure, and ICFL insulation with a 2-pole design to support long service life in mining operations. The motor is designed for IMB3/IM1001 mounting and a 500 V, 50 Hz supply, enabling straightforward, safe installation and retrofit. For engineers seeking energy savings, regulatory compliance, and proven reliability in hazardous zones, this motor with a 3-phase squirrel cage design is a sound choice.
Product Information
ABB Type Designation
M3JM 280SMB 2
Invoice Description
M3JM 280SMB 2
Product Name
3-Phase squirrel cage motor
Product Type
3JM3__M3JM_IE3_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
Medium Description
75kW, 2 Poles, Frame Size 280, 3 Phases, 500V, 50Hz, IP66 Enclosure, IMB3/IM1001 Mounting (3GJM281220-AEK)
Short Description
75kW, 2P, Frame Size 280, 3PH, 500V, 50Hz, IP66, IMB3/IM1001
Electrical Data
Connection Configuration
D
Temperature Class Default
--
Input Voltage (Uin)
500 V
Frequency (f)
50 Hz
Output Power
75 kW
Altitude
1000 m
Ambient Temperature
40 °C
IC Class
IC411
IE Class Data (50 Hz)
IE Class IE3 | Full Load (100%) 94.7 % | Partial Load (75%) 94.7 % | Partial Load (50%) 94.0 %
IE Class Data (60 Hz)
IE Class IE3 | Full Load (100%) 94.1 % | Partial Load (75%) 93.7 % | Partial Load (50%) 92.2 %
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
280
Bearing
6316/C3
Bearing NDE
6316/C3
IM Class
IMB3 IM1001
Terminator Box Location
D-End top
Package Level 1 Units
0 pallet (lift)
Product Net Depth / Length
1088 mm
Product Net Height
762 mm
Product Net Width
481 mm
Product Net Weight
785 kg
Gross Weight
805 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Exdb flameproof protection enables safe operation in hazardous zones, reducing ignition risk and field downtime in mining environments. The robust IP66 enclosure shields against dust and moisture, improving reliability during long shifts and in variable conditions, which directly lowers maintenance frequency and costs. Energy efficiency is at the core of IE3; with 75 kW output at 500 V and 50 Hz, full-load efficiency reaches about 94.7%, delivering meaningful savings on electricity bills and cooler operation, while preserving motor life under continuous duty. The combination of IP66, ICFL insulation, and a 2-pole design provides reliable starts in difficult climates up to 40°C ambient and 1000 m altitude, with strong partial-load performance. Mechanical design features a cast iron frame size 280, bearings 6316/C3, and IMB3/IM1001 mounting, enabling straightforward installation, reduced vibration, and long service life in conveyors, crushers, and mining drills. The D-end top terminator box and D-connection wiring simplify wiring, troubleshooting, and service access, helping technicians save on commissioning time and maintenance.
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FAQs
For hazardous locations, ensure Exdb flameproof enclosure integrity is verified, connect via the D‑connection system for straightforward wiring, and mount using IMB3/IM1001 standards. Maintain enclosure seals, monitor ambient temperature up to 40°C, and respect altitude limits around 1000 m. Proper cabling and starter coordination minimize downtime and maximize safety.
The motor runs on a 500 V, 50 Hz three‑phase supply with a 75 kW output and a 2‑pole configuration. IE3 efficiency is around 94.7% at full load, with favorable partial-load performance. The Exdb protection and IP66 enclosure reduce heat and ingress, while the D‑connection simplifies wiring, contributing to reliable starts and reduced startup current in harsh sites.
Yes. The design explicitly supports IMB3 IM1001 mounting and is configured for mining environments. With a cast iron frame size 280, bearing 6316/C3, and Exdb flameproof protection, it delivers reliable operation in conveyors, crushers, and other heavy‑duty mining equipment while maintaining safe operation in hazardous areas.
Key safeguards include Exdb flameproof protection for hazardous atmospheres, IP66 enclosure for dust and water ingress resistance, and ICFL insulation suitable for demanding temperatures. These features help meet global safety and environmental standards, ensuring compliance during audits and reducing risk in regulated industries like mining.
IE3 efficiency lowers operating energy costs over the motor’s life, while robust flameproof design reduces downtime and maintenance costs in hazardous sites. Cast iron construction and reliable bearings extend service intervals, and simplified wiring along with IMB3 mounting minimizes commissioning time, delivering faster time-to-value and a lower total cost of ownership.