ABB 3GJM311220-ASG 3-Phase squirrel cage motor - Exdb IP66 IC411 IE2
Part Number: 3GJM311220-ASG
Quick Summary
ABB 3GJM311220-ASG is a 3-phase squirrel cage motor for demanding mining and rugged industrial applications. In hazardous or dusty environments, uptime and safety are critical, and ordinary motors struggle with protective seals, electrical clearance, and cooling. This motor combines Exdb explosion protection, IP66 sealing, and IC411 insulation considerations to deliver compliant operation and long service life. Designed for continuous operation (S1) at 40 °C ambient and up to 1000 m altitude, it also delivers energy-efficient performance with IE2 efficiency ratings. With a 315 frame in cast iron and a top-termination box, it simplifies installation, reduces maintenance cycles, and speeds integration into safety-critical systems.
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
IMB3 IM1001
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
Feature Exdb explosion protection → Business Impact Reduced risk of ignition in hazardous zones; compliance with mining and process plant safety standards; Application mining conveyors, chemical processing lines. This enables safer operation and easier regulatory approval. Feature IP66 enclosure → Business Impact Superior dust and water ingress protection; longer bearing life in washdown environments; Application offshore and underground facilities, lift systems. Feature IC411 insulation → Business Impact Higher insulation reliability under demanding temperatures; reduced electrical losses and longer winding life; Application high-temperature, dusty environments. Feature IE2 efficiency data across 50 Hz and 60 Hz → Business Impact Lower energy costs and improved sustainability; predictable operating expenses for continuous duty; Application mineral processing, cement, and metal forming. Feature 315 frame cast iron construction with bearing 6316/C3 → Business Impact Robust mechanical endurance and easy replacement parts; Installation compatibility with standard IEC motor mounts; Application heavy-duty conveyors and pumps. Feature IMB3 IM1001 class and top termination box → Business Impact Simplified maintenance and terminal access; reduced commissioning time; Application plant shutdown minimization and faster integration. Feature Duty S1, 2-pole high speed → Business Impact Continuous operation with high torque characteristics; reliable performance under peak loads; Application fans, hoists, and centrifuges in hazardous areas.
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FAQs
ABB 3GJM311220-ASG uses a standard 315 frame and cast iron construction, designed for IEC mounting with a top termination box for simplified wiring and quick field routing. Its Exdb protection class makes it suitable for hazardous areas, meeting typical mining and chemical processing safety requirements. When planning installation, verify terminal box access, ensure suitable cable entries, and confirm clearance for a 315 frame footprint to maintain serviceability and compliance.
At 50 Hz, the motor delivers IE2 full-load efficiency around 95.1% and partial-load values near 94.8% at 75% and 93.6% at 50%. At 60 Hz, IE1 compliance applies with ~94.1%/full-load efficiency and roughly 93.5%/91.7% at 75%/50% load. These figures translate to noticeable reductions in electrical energy consumption, lower operating costs over the motor’s life, and improved thermal performance in continuous duty environments.
Yes. The M3JM 315SMB 2 designation combined with Exdb explosion protection and IP66 sealing makes it well-suited for mining, underground works, and other hazardous area installations. Its 2-pole high-speed design supports demanding torque at start-up, while the S1 duty cycle ensures reliable continuous operation. Its insulation class IC411 and endurance-certified bearings further support long service life in tough environments.
The motor includes Exdb explosion protection, IP66 ingress protection, and IC411 insulation. It is built for continuous service with S1 duty in hazardous zones, and it carries industrial-grade components such as a 315 frame, cast iron housing, and top-termination box for safe and compliant field installation. These features help meet mining, process plant, and regional electrical safety standards without extensive retrofits.
Maintenance benefits come from a robust cast iron frame, durable bearings (6316/C3), and a top-termination box for easier electrical checks. The IE2 efficiency reduces energy costs over time, improving total cost of ownership in continuous-duty operations. Expected ROI improves with lower maintenance downtime, fewer replacement parts, and reliable performance in hazardous environments such as mining and chemical plants.