ABB 3GJM253220-ASG 3JM2__M3JM_IE2_Group_I Flameproof Exd
Part Number: 3GJM253220-ASG
Quick Summary
ABB 3GJM253220-ASG is a 3-phase squirrel cage motor designed for hazardous mining environments. This motor delivers reliable performance in underground plants while reducing unscheduled downtime. Engineers often struggle with equipment that fails under dust, heat, or gas exposure; Exd flameproof protection and IP66 sealing address these risks by keeping critical components protected. The design also features an ICFL insulation class and IE2 efficiency, supporting safer operation and energy savings. With a robust cast iron frame, 6 poles, and a top-terminator box, it’s built for long life in tough industrial settings. By combining safety, efficiency, and durability, this motor helps mining operations meet regulatory requirements while boosting productivity.
Product Information
ABB Type Designation
M3JM 250SMB 6
Invoice Description
M3JM 250SMB 6
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%) 93.1 % | Partial Load (75%) 93.2 % | Partial Load (50%) 92.2 %
IP Class
IP66
Insulation Class
ICLF
Direction of Rotation
Both sides
Number of Poles (High)
6
Two Speed Motor
No
Type of Duty
S1
Voltage Code
S
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
250
Bearing
6315/C3
Bearing NDE
6313/C3
IM Class
IMB3 IM1001
Terminator Box Location
Top
Package Level 1 Units
0 pallet (lift)
Product Net Weight
521 kg
Gross Weight
531 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Flameproof Exdb protection and IP66 sealing are embedded in the design, delivering safe operation in hazardous zones. This reduces the risk of ignition and minimizes maintenance costs, making it ideal for mining conveyors, crushers, and processing lines where environments are dusty, damp, or gas-prone. The rugged cast iron frame and a 250 mm frame size provide outstanding mechanical robustness, improving uptime and lowering lifecycle replacement costs in heavy industry applications. A 6-pole configuration paired with IE2 efficiency ensures reliable torque characteristics and measurable energy savings during continuous operation, translating to lower operating expenses for long-shift mining processes. The top terminator box and IMB3 IM1001 mounting class simplify installation and service, reducing commissioning time and rotation handling during routine maintenance. Insulation class ICLF, 40 °C ambient temperature rating, and 1000 m altitude capability keep performance steady in harsh sites, while the 6315/C3 bearing and 6313/C3 NDE bearings support long service intervals and lower bearing maintenance costs. Overall, the motor’s design aligns with industry best practices for hazardous-area equipment, delivering predictable performance, regulatory compliance, and a clear return on investment for mining operators.
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FAQs
For safe installation in hazardous zones, position the motor with the top terminator box accessible for wiring, verify the IM class compatibility (IMB3 IM1001), and use appropriate armor and glands for Exd environments. The 250 frame and cast iron construction support stable mounting, while IP66 enclosures and Exdb protection minimize ingress risk during initial startup and regular maintenance intervals.
This motor is rated IE2 for efficiency with Full Load (100%) around 93.1% and modest changes under partial loads (75% and 50%). It runs under S1 duty, enabling continuous operation without interruption. The 6-pole configuration provides reliable torque for steady conveyor and processing loads typical in mining settings, while maintaining energy efficiency appropriate for long-running drives.
Yes, the ABB 3GJM253220-ASG is designed for continuous operation in hazardous areas, making it a good fit for mining conveyors and hoists. Its Exd flameproof protection, IP66 ingress protection, and robust IMB3 IM1001 mounting alignment support reliable performance under harsh underground conditions. Note that it is not a two-speed motor, so drive selection should align with the required fixed-speed duty cycle or drive control strategy.
The motor carries Exdb flameproof protection and IP66 sealing for hazardous environments, along with ICFL insulation. It operates in up to 1000 m altitude and 40 °C ambient temperature, with a 6-pole design suitable for S1 duty. The unit originates from Finland and uses a cast iron frame with 6315/C3 bearings, providing traceable compliance for industrial safety and reliability standards in mining sectors.
Maintenance benefits come from a robust cast iron frame, sealed bearings (6315/C3 with 6313/C3 NDE), and a top-terminator box that simplifies servicing. The IE2 efficiency and long-term durability reduce energy costs and downtime, contributing to a favorable return on investment in continuous-run mining operations. Planned inspections of bearings and seals, plus standard VFD-compatible controls, keep operation smooth and predictable.