ABB 3GJM281220-AEL Flameproof IE3 - Exdb IP66
Part Number: 3GJM281220-AEL
Quick Summary
ABB 3GJM281220-AEL is a flameproof IE3 mining motor engineered for harsh underground environments. Operators often contend with downtime, safety risks, and costly maintenance in explosive atmospheres. With IP66 enclosure, Exdb flameproof protection, and ICFL insulation, this motor meets demanding standards while delivering reliable performance. Engineered for compliance and long-term cost efficiency, it integrates with IMB3/IM1001 mounting schemes, operates at 500 V and 50 Hz, and supports mining applications with steady torque and high efficiency. This combination helps reduce lifecycle costs while preserving uptime in challenging mining operations. The design aligns with demanding industrial needs, delivering robust electrical and mechanical resilience when it matters most.
Product Information
ABB Type Designation
M3JM 280SMB 2
Invoice Description
M3JM 280SMB 2
Product Name
3-Phase squirrel cage motor
Product Type
5JM3__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-AEL)
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%) 94.4 % | Partial Load (50%) 93.5 %
IE Class Data (60 Hz)
IE Class IE3 | Full Load (100%) 94.1 % | Partial Load (75%) 93.4 % | Partial Load (50%) 91.6 %
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
Flameproof Exdb protection paired with IE3 efficiency yields safer operation and lower energy cost per produced kilowatt, directly impacting total cost of ownership for heavy-duty mining applications. The rugged, high-efficiency profile reduces heat and energy waste, enabling longer motor life in demanding conditions and supporting faster payback on upgrade cycles. IP66 enclosure and ICFL insulation protect critical windings and bearings from dust, moisture, and corrosive atmospheres, which translates to fewer unplanned outages and lower maintenance spend in underground plants. A 75 kW, 2-pole motor with frame size 280 and a 500 V, 50 Hz supply matches common mine electrical infrastructure, simplifying procurement and installation while delivering reliable torque for conveyors and crushers. IMB3/IM1001 mounting compatibility and D-end top terminator box location streamline retrofits and new installations alike, reducing integration risk. At altitudes up to 1000 m and ambient temperatures up to 40 °C, this design maintains performance without oversizing, supporting efficient project scoping and lifecycle planning.
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FAQs
Yes. The 3GJM281220-AEL is configured for IMB3/IM1001 mounting scenarios and features a D-End top terminator box location, which simplifies installation in retrofit and new-build mining sites. The 75 kW rating at 500 V and 50 Hz aligns with standard mine power networks, reducing mechanical integration risk and supporting straightforward alignment with existing drive systems.
This motor combines Exdb flameproof protection and an IP66 enclosure, essential for hazardous mining environments. The insulation class is ICFL, and the unit is designed for IMB3/IM1001 mounting. Together, these features provide ignition safety, dust and moisture resistance, and reliable operation in explosive atmospheres, which is critical for regulatory compliance and long-term asset protection.
The motor delivers 75 kW of output power with a 500 V, 50 Hz supply, configured as a 2-pole design suitable for S1 continuous duty. It is designed for high-torque startup and steady operation in demanding mining tasks, such as conveyors and crushers, while maintaining a robust operating envelope at up to 1000 m altitude and 40 °C ambient temperature.
IE3 efficiency reduces energy consumption and heat generation under full and partial load conditions, which is especially valuable for high-duty mining equipment. With efficiency data showing full-load performance around 94.7% at 50 Hz, AS/NZS and IEC standards compliance supports lower operating costs, cooler running temperatures, and improved drive system reliability in long-life applications.
Plan for robust cooling and protection, given the IP66 enclosure and Exdb flameproof rating that guard against dust and moisture ingress. Use IMB3/IM1001 mounting to ensure vibration control and alignment, schedule routine inspections of bearings (6316/C3) and windings, and maintain within 40 °C ambient limits. The gross weight and frame size support stable handling and reduced field repair time, contributing to lower total cost of ownership.