ABB 3GJM281210-ASG 3-Phase Squirrel Cage Motor - Exdb
Part Number: 3GJM281210-ASG
Quick Summary
ABB 3GJM281210-ASG is a 3-phase squirrel cage motor for demanding mining and flameproof duty in hazardous environments. Operators face downtime caused by harsh ambient conditions, insufficient explosion protection, and rising maintenance costs, which can disrupt production schedules. This motor combines Exdb flameproof protection, IP66 enclosure, and ICFL insulation to meet stringent safety and reliability requirements. With IE2 efficiency data across 50 Hz and 60 Hz, a robust 280 frame, and a cast-iron build, it delivers consistent torque while reducing energy consumption. In practice, its top-terminal box and precision bearings support reliable operation in remote mines and other challenging sites, lowering lifecycle risk and total cost of ownership.
Product Information
ABB Type Designation
M3JM 280SMA 2
Invoice Description
M3JM 280SMA 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
85015230
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%) 94.3 % | Partial Load (75%) 93.8 % | Partial Load (50%) 92.2 %
IE Class Data (60 Hz)
IE Class IE1 | Full Load (100%) 93.0 % | Partial Load (75%) 92.4 % | Partial Load (50%) 90.5 %
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
S
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
280
Bearing
6316/C3
Bearing NDE
6316/C3
IM Class
IMB3 IM1001
Terminator Box Location
Top
Package Level 1 Units
0 pallet (lift)
Product Net Weight
644 kg
Gross Weight
664 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Feature: Exdb flameproof protection and IP66 enclosure provide certified safety in hazardous areas. Business Impact: Reduces risk of ignition and protects equipment against washdowns, improving regulatory compliance and uptime. Application: Ideal for mining conveyors, hoists, and other heavy-duty drives in Group I environments. Feature: IE2 efficiency data at 50 Hz and 60 Hz delivers measurable energy savings. Business Impact: Lower operating costs over the motor’s life, especially under steady-state loads common in material handling. Application: Suitable for long-duty cycles in mining and process facilities where energy costs accumulate. Feature: 280 frame, Cast Iron frame and 6316/C3 bearings deliver rugged durability. Business Impact: Extended service life, fewer unscheduled maintenance events, and easier replacement cycles. Application: Harsh surroundings and frequent starts/stops in industrial plants. Feature: Exd/Exdb flameproof design with Group I suitability and 2-pole operation. Business Impact: Enables safe operation in potentially explosive atmospheres while maintaining high starting torque. Application: Mining equipment, crushers, and material handling systems operating in hazardous zones. Feature: Top terminator box location and IMB3 IM1001 mounting class support easy installation and alignment. Business Impact: Simplifies field wiring and maintenance, reducing installation time and downtime. Application: New builds and retrofit projects in remote facilities with limited service access. Industry context: The combination of robust mechanical construction (Cast Iron 280 frame, 6316/C3 bearings), protective features (IP66, Exdb), and energy-conscious IE2 performance aligns with modern mine automation strategies, ensuring compatibility with standard drives and control systems while delivering predictable, long-lasting performance.
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FAQs
Install with the Top Terminator Box as specified to simplify field wiring and reduce install time. The 280 frame with Cast Iron construction fits standard baseplates and bolt patterns, and the 2-pole design aligns with common 50/60 Hz drives. Ensure Exdb protection and IP66 enclosure are maintained during assembly, and verify the ambient limits (40 °C, 1000 m) are respected for optimal performance.
At 50 Hz, Full Load efficiency is 94.3%, with 75% and 50% partial loads at 93.8% and 92.2% respectively. At 60 Hz, Full Load efficiency is 93.0%, with 75% and 50% partial loads at 92.4% and 90.5% respectively. These figures translate to meaningful energy savings in continuous operation typical of mining conveyors and hoists, contributing to lower lifecycle costs and improved sustainability.
Yes. The Exdb flameproof protection combined with IP66 enclosure (dust and water ingress protection) makes it suitable for hazardous-area mining applications (Group I). The 2-pole IE2 rated motor operates under S1 duty, delivering reliable torque in mining conveyors, crushers, and other heavy-duty drives while meeting safety standards.
The motor uses a Cast Iron frame with a robust 6316/C3 bearing arrangement and IMB3 IM1001 mounting class, designed for rugged service. Routine checks should include bearing condition, insulation integrity, and enclosure seals to preserve IP66 protection. The top terminator box simplifies wiring during maintenance, and the Exd/Exdb protection reduces the risk of corrosion-related failures in harsh environments.
Key benefits include strong energy efficiency (IE2), high reliability in hazardous zones (Exdb IP66), and reduced downtime due to robust mechanical design. Its 280 Cast Iron frame and top-term box simplify installation and maintenance, delivering lower lifetime costs, improved safety compliance, and consistent performance across mining applications and heavy-duty drives.