ABB 3GJM252220-BEG 3-Phase Squirrel Cage Motor - Exdb Flameproof
Part Number: 3GJM252220-BEG
Quick Summary
ABB 3GJM252220-BEG 3-Phase squirrel cage motor delivers reliable torque for demanding mining and hazardous-area applications. Many users struggle with securing genuine flameproof protection, maintaining IP66 sealing, and achieving long service life in extreme environments. This motor meets Exdb flameproof protection, IP66 ingress protection, and IC411 insulation, while delivering IE1 efficiency in a rugged 4-pole design. Its robust cast-iron frame and top-mounted terminator box support straightforward installation and dependable service in harsh sites. For procurement teams, the combination of certified protection, standardized data, and Finnish-made build quality reduces risk, simplifies compliance, and lowers total cost of ownership over the motor’s lifecycle. The result is safer operation, predictable performance, and easier maintenance planning in mining, mineral processing, and heavy industry.
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 IE1 | Full Load (100%) 93.8 % | Partial Load (75%) 94.2 % | Partial Load (50%) 93.9 %
IP Class
IP66
Insulation Class
ICLF
Direction of Rotation
Both sides
Number of Poles (High)
4
Two Speed Motor
No
Type of Duty
S1
Voltage Code
E
EX-Protection
Exdb
Frame Material
Cast Iron
Frame Size
250
Bearing
6315/C3
Bearing NDE
6315/C3
IM Class
IMB5 IM3001
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
Exdb flameproof protection and IP66 enclosure deliver essential safety and compliance for mining and other explosion-hazard environments. The motor’s design minimizes ignition risk while maintaining performance under continuous duty, ensuring steady torque at full load in harsh installations. This translates to fewer unplanned outages and more reliable equipment uptime on belts, crushers, and process lines. With a 4-pole configuration and a robust 3-phase torque profile, the motor provides stable speeds and reliable starting under challenging loads. The design supports key applications such as conveyors, slurry pumps, and ventilation fans, reducing startup current spikes and improving overall drive efficiency. Frame size 250 in cast iron offers a rugged housing that tolerates vibration, dust, and temperature swings found in mines. The top terminator box simplifies field wiring and service access, speeding installation and reducing commissioning time while maintaining protection integrity. IC411 insulation with IE1 efficiency class balances performance and energy cost. Operation up to 40 °C ambient and at altitudes up to 1000 m keeps operating costs predictable and minimizes derating. A durable insulation system also supports longer service intervals in hard-to-reach locations. Premium bearings 6315/C3 with IMB5 IM3001 class deliver long bearing life and reduced maintenance. The machine’s heavy frame, 519 kg net weight and 529 kg gross, crucially support stable load handling and predictable alignment during mounting and maintenance, even in top-room installations. Designed for continuous duty (S1) with a single speed, and Ex-protected operation (Exdb), this motor fits mining conveyors, crushers, and material-handling equipment. Its 250 mm frame and compatibility with standard industrial drives help integrators meet project timelines and compliance requirements.
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FAQs
Yes. The motor features Exdb flameproof protection, IP66 ingress protection, and a top terminator box that simplifies wiring in explosion-prone environments. Its cast-iron frame size 250 and top-mount orientation support straightforward installation on standard bases or mounting plates used in mining conveyors and processing equipment.
This is a 3-phase, 4-pole motor with IE1 efficiency and IC411 insulation. It operates at ambient temperatures up to 40 °C and up to 1000 m altitude. The frame is 250 with bearing 6315/C3 and IMB5 IM3001 class, delivering reliable torque under continuous S1 duty.
Absolutely. The Exdb flameproof rating, IP66 protection, and rugged cast-iron housing make it ideal for conveyors, crushers, pumps, and ventilation in both surface and underground mining. The 4-pole, single-speed design provides stable operation under full-load conditions, enhancing equipment uptime in demanding mine environments.
The unit is protected by Exdb flameproof explosion protection and IP66 sealing, with IC411 insulation and IE1 efficiency. Its robust construction and top-access wiring align with common mining and hazardous-area standards, supporting safer operations and easier regulatory compliance across sites.
The 6315/C3 bearings and IMB5 IM3001 class reduce maintenance needs and extend bearing life in tough environments. The heavy cast-iron frame and top-box design simplify service access, while IE1 efficiency lowers operating costs. These factors combine to shorten payback periods and improve long-term reliability in mining applications.