ABB 3GJM251220-BSG 3-phase squirrel cage motor - Exd mining motor
Part Number: 3GJM251220-BSG
Quick Summary
3GJM251220-BSG is a 3-phase squirrel cage motor designed for mining and heavy industry applications. It delivers reliable performance in harsh environments, helping you minimize unplanned downtime and maintenance complexity. The unit features IP66 ingress protection, Exdb flameproof protection, and IC411 insulation, with IE2 efficiency at full load, ensuring safety and regulatory compliance in demanding conditions. With a 250 frame size, cast iron housing, and rugged bearings, it supports long service life in challenging installations. Its protection class and two-pole design enable dependable operation across a wide altitude and ambient temperature range. This makes it a practical choice for applications demanding durable, compliant motor performance across global sites.
Product Information
ABB Type Designation
M3JM 250SMB 2
Invoice Description
M3JM 250SMB 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%) 93.8 % | Partial Load (75%) 93.9 % | Partial Load (50%) 93.1 %
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
250
Bearing
6315M/C3
Bearing NDE
6313M/C3
IM Class
IMB5 IM3001
Terminator Box Location
Top
Package Level 1 Units
0 pallet (lift)
Product Net Weight
514 kg
Gross Weight
524 kg
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
UNSPSC
26101100
Exdb flameproof design is the defining feature, delivering certified protection for mining environments. This reduces risk of ignition and accelerates regulatory compliance, enabling safe operation in hazardous zones. Ideal applications include mining haul trucks, conveyors, and heavy-duty winches where explosive atmospheres may be present. IP66 ingress protection and IC411 insulation ensure reliable operation in dusty, wet, and rugged sites, lowering maintenance frequency and extending service life. The energy efficiency of IE2, with Full Load ~93.8% and Partial Loads around ~93.9%, translates into meaningful operating cost reductions over the motor’s lifecycle. A 250 frame, cast iron housing and robust bearings (6315M/C3 and 6313M/C3) provide durability under continuous S1 duty and high mechanical loads. The design supports straightforward installation, with a top-terminator box and compatibility with standard mining equipment. Altitude and ambient temperature tolerance up to 1000 m and 40 °C, respectively, further enhance field applicability across global sites.
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FAQs
Yes. The 3GJM251220-BSG uses a 250 frame and cast iron housing, designed for compatibility with common 250 frame configurations found in mining drives. Its top-terminator box aids straightforward wiring and integration, reducing retrofit time. Typical installations benefit from the same mounting footprint and mechanical interface as standard mining motors, with added protection and flameproof compliance.
The motor is IE2-rated, with Full Load efficiency listed at 93.8% and Partial Load values near 93.9% (75%) and 93.1% (50%). It is a two-pole design with a Single Duty (S1) rating, operating under ambient up to 40 °C and at altitudes up to 1000 m. It runs on a 3-phase supply, per its designation as a 3-phase squirrel cage motor, suitable for continuous operation in mining applications.
Yes. The motor features Exdb flameproof protection and IP66 ingress protection, specifically designed for hazardous and demanding environments. It meets flameproof standards for mining and other explosion-risk areas, enabling safe operation in underground or surface mining equipment where ignition risks must be mitigated, while maintaining reliable performance.
Key certifications include Exdb flameproof protection and IP66 ingress protection, along with IC411 insulation and IE2 efficiency. These ratings support compliance with mining safety regulations and industrial installation standards. The combination reduces certification time for new sites and simplifies regulatory audits while enabling safe, long-life operation in harsh conditions.
Durable cast iron construction, premium bearings (6315M/C3 and 6313M/C3), and a robust frame design minimize unplanned downtime and routine maintenance. The Exdb protection and IP66 rating lower containment and cleaning requirements in dusty or wet environments. Overall, energy efficiency (IE2) contributes to lower operating costs, improving total cost of ownership for mining and heavy industry applications.