ABB 3GJM281220-BDK 3-Phase Flameproof IE3 - Exd Motor
Part Number: 3GJM281220-BDK
Quick Summary
ABB 3GJM281220-BDK is a 75 kW, flameproof IE3 mining motor for hazardous environments. Operators face uptime and maintenance challenges in dusty, high-heat underground conditions. This design delivers IP66 ingress protection, Exdb flameproof protection, and an IC411 insulation class, supporting IE3 efficiency. Designed for OEMs and end users, it combines robust construction with 400 V, 50 Hz power and IMB5 mounting compatibility, helping reduce total cost of ownership. In practice, it enables safer operations and predictable performance across demanding mining fleets. Reliability is reinforced by a cast iron frame, precision bearings, and a sealed IMB5/IM3001 mounting arrangement. With 75 kW at 400 V, operators can standardize on a single platform across mixed underground and surface sites.
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, 400V, 50Hz, IP66 Enclosure, IMB5/IM3001 Mounting (3GJM281220-BDK)
Short Description
75kW, 2P, Frame Size 280, 3PH, 400V, 50Hz, IP66, IMB5/IM3001
Electrical Data
Connection Configuration
D
Temperature Class Default
--
Input Voltage (Uin)
400 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%) 94.6 % | Partial Load (50%) 93.5 %
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
D
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
280
Bearing
6316/C3
Bearing NDE
6316/C3
IM Class
IMB5 IM3001
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 Exd protection paired with an IP66 enclosure offers inherent safety in hazardous areas, reducing the need for additional shielding and simplifying compliance checks. This translates to lower installation risk, fewer field modifications, and quicker commissioning at mine sites. The motor is certified for use in underground coal and metal operations, with IMB5 IM3001 mounting that supports robust alignment and vibration resistance. IE3 premium efficiency delivers measurable energy savings across full-load and partial-load conditions. In 50 Hz operation, full-load efficiency is listed at 94.7%, with 75% load at 94.6% and 50% load at 93.5%. At 60 Hz the efficiency remains high (94.1% full load), which helps reduce operating costs on continuous duty conveyors and pumps. Lower heat also improves reliability in long shifts. Cast iron frame size 280, 785 kg net weight and precision bearings (6316/C3) provide rugged durability in dusty, vibrational environments. The 2-pole architecture delivers strong starting torque and smooth operation, while the IMB5/IM3001 mounting supports straightforward alignment with standard customer bases. This combination minimizes maintenance intervals and simplifies spare-part planning in large mine fleets. Electrical compatibility centers on a D connection configuration with 400 V, 50 Hz supply and a single point terminator at the D-End top. The compact 1088 mm length and the 785 kg net weight help with transport and site installation, while IP66 and Exdb protection reduce enclosures and risk of ingress during heavy-duty cycles. The integrated IMB5/IM3001 mounting enhances retrofit viability across existing systems. With a maximum altitude of 1000 m and ambient up to 40 °C, the motor maintains performance across diverse mining environments. The product is designed in Finland for robust quality control and adheres to WEEE guidelines, supporting sustainable end-of-life management. Overall, the design minimizes total cost of ownership by combining safety, efficiency, and reliability.
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FAQs
ABB 3GJM281220-BDK with IMB5 mounting is built for straightforward installation on typical mining structures. Use the D connection configuration for 400 V, 50 Hz and position the terminator box at the D-End top to simplify wiring. Check frame size 280, bearing 6316/C3, and plan for the 1088 mm length and 785 kg net weight for routing and rigging.
This motor provides 75 kW continuous output at 400 V and 50 Hz, with a 2-pole design and IE3 efficiency. It operates on a 3-phase supply, is rated IP66, and features Exdb flameproof protection. The connection is configured as D, duty is S1, and it supports IMB5/IM3001 mounting for stable integration in mining equipment.
Yes. The 3GJM281220-BDK is engineered for hazardous zones with Exdb flameproof protection and an IP66 enclosure. It is designed for mining duty (S1) with a 2-pole configuration and frame 280, enabling safe operation underground and on the surface. It also aligns with insulation class ICFL and IC411 for reliable performance under dust and vibration.
IE3 efficiency is 94.7% at full-load (50 Hz), 94.6% at 75% load, and 93.5% at 50% load. At 60 Hz, full-load efficiency is 94.1%, with about 93.7% at 75% and 92.2% at 50% load. These figures support reduced operating costs and cooler, more reliable operation in continuous mining cycles.
The motor uses a rugged cast iron frame, bearings 6316/C3, and sealed IMB5/IM3001 mounting, extending service life and simplifying maintenance. IP66/Exdb protection reduces enclosure needs, while IE3 efficiency lowers energy bills. Over the fleet, the result is lower downtime, fewer spare parts, and a faster return on investment through energy savings and reliability.