ABB 3GJM281220-BEG - Flameproof Exd Mining Motor
Part Number: 3GJM281220-BEG
Quick Summary
ABB 3GJM281220-BEG is a 3-phase squirrel cage motor designed for hazardous mining environments. Operators face downtime and compliance risk when flameproof protection, IP66 guarding, and energy efficiency are not guaranteed. The design delivers Exdb flameproof protection, IP66 enclosure, and IE2 performance class, supported by IC411 insulation and a rugged 2-pole, 280 frame build. Originating in Finland (FI) and offered with a minimum order quantity of 1 piece, this motor helps OEMs simplify sourcing while meeting strict industry standards. With a standard IMB5 IM3001 mounting class and top-terminator box, it enables straightforward installation in rugged mining setups, reducing lead times and 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%) 94.7 % | Partial Load (50%) 93.8 %
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
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
Flameproof Exdb protection provides safety and regulatory compliance in explosive atmospheres, reducing ignition risk and warranty claims while enabling continuous operation in harsh mines. The IP66 enclosure resists dust and water ingress, extending service life in dusty, damp, and wet environments and lowering maintenance intervals. IE2 efficiency, rated at full load 94.6% and partial loads around 94.7%, translates to meaningful energy savings and lower operating costs over the motor’s lifetime. The 2-pole design delivers high starting torque and reliable speed control for crane, conveyor, and pumping applications, while the 280 frame and cast iron construction offer robust mechanical durability. Cast iron frame material, bearing spec 6316/C3, and NDE bearing compatibility (6316/C3) maximize reliability in alignment-critical mining installations. The Exdb protection and IC411 insulation support extended service life under 40 °C ambient and up to 1000 m altitude, with top terminator box and IMB5/IM3001 mounting compatibility simplifying installation and maintenance.
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FAQs
This motor uses a top terminator box and IMB5 IM3001 mounting compatibility, paired with a 280 frame and cast iron housing. Its top-entry design simplifies cable routing, while the 6316/C3 bearings support stable operation in alignment-critical conveyors and pumping lines. Ensure clearance for the 684 kg net weight and proper foundation to handle the vibration profile typical of mining drives.
The unit is a 2-pole, single-speed motor with IE2 efficiency, designed for S1 duty (continuous operation). It features Exdb flameproof protection, IP66 ingress protection, and IC411 insulation. Voltage code is E, suitable for standard industrial power distributions in hazardous zones, with full-load efficiency around 94.6% and partial-load performance near 94.7%.
Yes. Rated for up to 1000 m altitude and 40 °C ambient, the motor’s insulation and cooling strategy maintain performance in hot, elevated mining sites. Cast iron frame and robust bearings support sustained operation under vibration and dust exposure, while Exdb protection ensures safe operation in explosive atmospheres.
Key certifications include Exdb flameproof protection and IP66 enclosure, IC411 insulation, and IEC/ATEX-aligned IE2 efficiency. The motor is appropriate for hazardous locations in mining and metals processing, complying with industry safety and performance requirements while supporting compliance documentation for audits.
The rugged cast iron frame and durable bearings reduce maintenance cycles and MTBF downtime. Exdb protection and IP66 sealing minimize field repairs, lowering total cost of ownership. Energy efficiency (IE2) lowers energy bills, while standard dimensions and mounting reduce spare-part variety and on-site installation time, delivering a favorable return on investment in long-running mining applications.