ABB 3GJM311220-BSG 3-Phase Squirrel Cage Motor - Exdb

Part Number: 3GJM311220-BSG
Manufacturer
ABB
Part number
3GJM311220-BSG

Quick Summary

ABB 3GJM311220-BSG 3-Phase squirrel cage motor delivers reliable torque for mining and heavy-duty drives. Engineered for continuous operation in harsh environments, it minimizes unplanned downtime and enhances safety. Critical certifications include IP66 protection, Exdb explosion protection, and ICFL insulation—ensuring compliance in demanding environments. With IE2 efficiency and a robust cast-iron frame, it reduces energy use and maintenance while meeting mining standards. Its Exdb protection makes it suitable for underground mining applications where gas and dust hazards are present. With a 1000 m altitude rating and 40 C ambient tolerance, it remains dependable in challenging sites. From installation to ongoing service, the motor's IM and bearing arrangements support easy maintenance and long service life.

Product Information

ABB Type Designation
M3JM 315SMB 2
Invoice Description
M3JM 315SMB 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%) 95.1 % | Partial Load (75%) 94.8 % | Partial Load (50%) 93.6 %
IE Class Data (60 Hz)
IE Class IE1 | Full Load (100%) 94.1 % | Partial Load (75%) 93.5 % | Partial Load (50%) 91.7 %
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
S
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
315
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
962 kg
Gross Weight
982 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Exdb explosion protection and IP66 sealing deliver safer operation by guarding windings and electrical connections from gas, dust, and washdowns. This protective combination reduces compliance risk, minimizes unplanned downtime, and improves worker safety in hazardous environments. In underground mining and processing facilities where equipment exposure is constant, the Exdb rated motor maintains performance during duty cycles and offers predictable thermal behavior, making it a dependable foundation for critical drive systems. Cast-iron frame and 315 frame size provide exceptional durability in rugged environments where heavy handling and thermal cycling are routine. The 6316/C3 bearings with IMB5 mounting support reliable starts and long service life under heavy loads, while a top-terminator box simplifies wiring, field diagnostics, and maintenance access. Compatibility with standard mounting patterns and the most common ABB drive interfaces minimizes retrofit risk and accelerates project timelines. IE2 efficiency translates into meaningful energy savings across long duty cycles, lowering operating costs without compromising torque. Insulation class ICLF and ambient tolerance of 40 C enable steady performance at up to 1000 m altitude, ensuring consistent cooling and reduced temperature rise in challenging sites. These attributes help meet energy and safety regulations while sustaining production targets. Easy installation and maintenance are supported by straightforward mounting, accessible bearing assemblies, and a top box location that streamlines wiring modifications. The dual-rotation capability offers flexibility in layout and reduces spindle alignment constraints during retrofits. Overall, the motor’s robust mechanical design minimizes maintenance windows and extends service life, delivering a lower total cost of ownership for mining and heavy industrial operations. Industry specialists appreciate the integrated design for retrofit projects and new builds, particularly when upgrading to Exdb motors in mining fleets. The combination of rugged construction, high protection class, and industry-standard dimensions ensures compatibility with existing equipment and control systems, helping you achieve faster deployment, safer operations, and measurable productivity gains.

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FAQs

Install on a 315 frame using the cast-iron housing. Align the shaft to minimize runout, secure with standard mounting holes, connect the top-terminator box, and verify proper bearing seating. The IMB5 class and 6316/C3 bearings support strong startup and long service life, while Exdb and IP66 require appropriate hazardous-area enclosures during installation.
At 50 Hz, Full Load efficiency is 95.1%, with Partial Loads around 94.8% at 75% and 93.6% at 50%. At 60 Hz, IE2 performance remains high—Full Load about 94.1%, with Partial Loads near 93.5% at 75% and 91.7% at 50%—typical for a 2-pole mining motor in this frame.
Yes. The motor integrates Exdb explosion protection and IP66 sealing, making it suitable for underground mining environments with gas and dust exposure. Its 40 C ambient rating and 1000 m altitude tolerance support dependable operation across typical mining sites, while IE2 efficiency reduces running costs during long duty cycles.
The motor features Exdb explosion protection, IP66 ingress protection, and insulation class ICLF. It meets mining industry efficiency standards with IE2 ratings and is listed under UNSPSC 26101100. WEEE classification is 4 for large equipment, aligning with responsible disposal practices.
Expect reduced maintenance time due to robust IMB5 mounting and accessible top-terminator box, plus fewer unplanned outages thanks to Exdb and IP66 protection. IE2 efficiency lowers energy costs over long duty cycles, contributing to a lower total cost of ownership. Retrofit compatibility also shortens deployment times and protects downstream process uptime.