ABB 3GJM281220-BDG 3-Phase motor - Exd flameproof
Part Number: 3GJM281220-BDG
Quick Summary
3GJM281220-BDG is a 3-phase squirrel cage motor designed for flameproof Exd mining applications. Operators face reliability and maintenance challenges in hazardous environments, where downtime can be costly. This motor delivers robust protection with Exdb flameproofing, IP66 enclosure, and IC411 insulation, aligning with IE2 efficiency requirements. Built for demanding workloads, it also supports durable performance in rugged industrial settings while integrating seamlessly with ABB drives and control systems to optimize total cost of ownership.
Product Information
ABB Type Designation
M3JM 280SMB 2
Invoice Description
M3JM 280SMB 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
85015381
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%) 94.6 % | Partial Load (75%) 94.5 % | Partial Load (50%) 93.5 %
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
Top
Package Level 1 Units
0 pallet (lift)
Product Net Weight
684 kg
Gross Weight
704 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Feature → Business Impact → Application: Exdb flameproof protection provides safe operation in explosive atmospheres, reducing risk and enabling compliant mining deployments, particularly in underground sites. This protection, combined with IP66 enclosure, enhances equipment uptime and lowers maintenance frequency for harsh environments such as mineral processing and grinding operations. IE2 efficiency supports energy-cost reductions across shift patterns and load profiles, delivering measurable ROI in continuous duty applications. The cast iron frame and 280 mm frame size deliver structural integrity for high-torque loads, while bearing specification 6316/C3 ensures durable operation with lower lifetime lubrication needs, reducing maintenance intervals in heavy-load conveyors and crushers. The motor’s two-pole design supports compact packaging and high start-up torque, ideal for hoists and winches in mining operations. Direction of rotation both sides simplifies installation in redundant drive configurations, and the IMB5 IM3001 mounting class ensures compatibility with common drip-proof installations. Altitude and ambient temperature ratings—1000 m and 40 °C—facilitate predictable performance in elevated or hot environments, helping maintenance planners forecast cooling needs. With a weight of 684 kg net and 704 kg gross, the unit is engineered for stable, vibration-free operation on long-running mining lines, minimizing bearing wear and shaft misalignment risks. Finally, the product’s country of origin in Finland supports regional procurement strategies and consistent supply-chain expectations for large-scale projects.
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FAQs
Plan mounting around the 280 mm frame and cast iron housing to maximize vibration damping and load distribution. Ensure the Terminator Box Location is accessible (Top) for straightforward cabling, verify IP66 ingress protection in dusty or damp underground sites, and match the Exdb flameproof designation to the hazardous zone classification. Use compatible couplings and alignments for a reliable start-up sequence.
IE2 efficiency indicates medium-high efficiency performance under IEC standards. For this motor, Full Load efficiency is 94.6%, with partial-load values around 94.5% (75% load) and 93.5% (50% load). These ratings translate into energy savings across typical duty cycles, reducing operating costs in continuous mining conveyors and machinery that frequently run under variable loads.
Yes. It integrates Exdb flameproof protection and an IP66 enclosure, designed for hazardous mining environments. With 2 poles and a S1 duty rating, it provides high starting torque and continuous operation. The motor’s insulation and frame materials optimize longevity under elevated ambient temperatures, making it a reliable choice for underground hoists, crushers, and processing equipment.
Key compliance features include Exdb explosion protection, IP66 enclosure, and IC411 insulation class, plus an IE2 energy efficiency rating. The motor uses a cast iron frame (Frame Size 280) and bearing set 6316/C3, with IMB5 IM3001 mounting class. Operating in Finland and built to withstand 1000 m altitude and 40 °C ambient, these specs support safe installation and regulatory adherence in mining and industrial facilities.
Durability is supported by a robust cast-iron frame, 6316/C3 bearings, and a top-entry Terminator Box for simplified maintenance. The Exd protection reduces unplanned downtime, while the IE2 efficiency lowers energy costs across duty cycles. With a weight around 684 kg (net) and a gross weight of 704 kg, the motor favors stable mounting and reduced vibration, contributing to longer bearing life and lower replacement expenses over the motor’s service life.