ABB 3GJM252220-ADG 3-Phase squirrel cage motor - Exdb
Part Number: 3GJM252220-ADG
Quick Summary
ABB 3GJM252220-ADG 3-Phase squirrel cage motor is engineered for reliable performance in harsh mining and heavy industrial settings. This design addresses downtime and unplanned outages caused by equipment that struggles in explosive environments or under demanding loads. The motor features IP66 enclosure protection, Exdb flameproof protection, and IC411 insulation to support safe operation in hazardous zones. By focusing on robust cooling, durability, and efficiency, this solution helps you reduce maintenance costs while preserving uptime. In addition to its rugged construction, the motor aligns with IE2 efficiency targets to lower energy spend, making it a practical choice for long-term plant profitability and regulatory compliance.
Product Information
ABB Type Designation
M3JM 250SMB 4
Invoice Description
M3JM 250SMB 4
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%) 94.6 % | Partial Load (50%) 94.3 %
IP Class
IP66
Insulation Class
ICLH
Direction of Rotation
Both sides
Number of Poles (High)
4
Two Speed Motor
No
Type of Duty
S1
Voltage Code
D
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
250
Bearing
6315/C3
Bearing NDE
6315/C3
IM Class
IMB3 IM1001
Terminator Box Location
Top
Package Level 1 Units
0 pallet (lift)
Product Net Weight
519 kg
Gross Weight
529 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Feature: Exdb flameproof protection provides a proven barrier against ignition risks in hazardous environments. Business Impact: Enhances safety compliance and reduces the probability of catastrophic failures, lowering insurance costs and downtime. Application: Mining conveyors and processing equipment where flammable atmospheres may be present. Feature: IP66 enclosure rating offers superior dust and water ingress protection. Business Impact: Extends motor life in dusty facilities and wet environments, reducing maintenance intervals. Application: Surface mines, bulk handling, and outdoor installations with washdown requirements. Feature: Cast Iron frame (250) and 6315/C3 bearings deliver rugged mechanical durability. Business Impact: Improves bearing life and reduces unexpected outages, lowering lifecycle costs. Application: Heavy-duty drives and feeders in tough plant conditions. Feature: IE2 efficiency with 4-pole design lowers energy consumption while maintaining full-load performance. Business Impact: Delivers measurable energy savings and cooler operation, improving overall plant energy intensity. Application: Continuous process lines and high-duty cycles with tight utility budgets. Feature: IC411 insulation with high altitude and ambient temperature specs enables safe operation up to 1000 m and 40 °C. Business Impact: Maintains electrical integrity and performance in challenging sites, avoiding derating and warranty concerns. Application: Remote mines and elevated installations where climate and altitude constraints are present. Feature: Top terminator box location simplifies wiring and retrofit. Business Impact: Reduces installation time and miswiring risk, accelerating commissioning. Application: New builds and upgrades in confined spaces or retrofit projects.
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FAQs
Plan for a top-mounted terminal box and ensure the Exdb flameproof enclosure is compatible with your hazardous-area zone. Verify the 250 frame with cast iron construction fits your mounting footprint and that cable glands meet enclosure integrity requirements. Confirm alignment with IMB3 IM1001 and bearing housing to avoid premature wear.
Yes. The Exdb protection combined with IP66 enclosure rating makes it well suited for mining and other hazardous environments. With S1 duty, a 4-pole design, and IE2 efficiency, it delivers reliable performance under continuous load while maintaining electrical safety and durability in demanding operations.
This motor conforms to IE Class IE2, with full-load (100%) efficiency around 94.3% and partial-load figures near 94.6%. Such performance translates to meaningful energy savings in continuous-duty applications and helps meet regulatory efficiency targets without compromising torque during startup.
Key specifications include IP66 ingress protection, Exdb flameproof protection, IC411 insulation, and an insulation class of ICLH. It is designed for ambient temperatures up to 40 °C and operation at altitudes up to 1000 m, making it suitable for elevated, harsh environments.
The rugged cast-iron frame, robust bearings (6315/C3), and flameproof protection reduce unplanned downtime and maintenance frequency. While upfront costs may be higher, the long service life, lower energy consumption via IE2 efficiency, and safer operation in hazardous zones typically yield a favorable total cost of ownership over the motor’s lifespan.