ABB 3GJM253220-ADG 3-Phase squirrel cage motor - Exdb
Part Number: 3GJM253220-ADG
Quick Summary
The 3GJM253220-ADG 3-Phase squirrel cage motor from ABB delivers robust torque and reliable operation for mining and heavy industrial applications. Engineers often face downtime from harsh environments, costly maintenance, and the need for flameproof protection in hazardous locations. This motor combines Exdb flameproof protection, IP66 enclosure, and IC411 insulation with IE2 efficiency to meet safety and energy standards. Designed for demanding conditions, it supports continuous operation and easy integration with ABB control ecosystems. By aligning with IE2 efficiency and flameproof ratings, it helps reduce energy costs while enhancing worker safety and regulatory compliance across mining or process industries. This makes it a strong fit for customers seeking durable, high-availability motors in rugged sites.
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%) 92.9 % | Partial Load (75%) 93.3 % | Partial Load (50%) 93.1 %
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
D
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
Exdb flameproof protection provides safe operation in potentially explosive atmospheres. This reduces the risk of ignition in mining or chemical environments, increasing uptime and minimizing compliance costs. Applications include mining conveyors, shotcrete machines, and surface equipment in hazardous zones. IP66 sealing protects against dust ingress and powerful washdowns, enabling reliable performance in outdoor, underground, or humid plants. The business impact is longer service life and lower replacement costs, with installation flexibility across conveyors, grinders, and processing lines in harsh environments. IE2 efficiency, with full-load 92.9% and partial-load values around 93%, drives meaningful energy savings and helps meet regulatory targets. When combined with a 1000 m altitude and 40 °C ambient specification, it reduces operating costs over the motor’s lifetime in mining and processing facilities. Six-pole, 3-phase design delivers smooth starting torque and stable speed control for continuous duty (S1) operations. The cast-iron frame (250) and robust bearings (6315/C3 and 6313/C3) support long service intervals and predictable maintenance planning in high-load applications. A top-entry terminator box simplifies cabling and reduces installation time, while the IMB3 IM1001 mounting class and standard bearing configuration support straightforward retrofit or replacement in existing ABB installations. Compatibility with IEC/ISO standards and ABB control systems helps streamline procurement and service planning.
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FAQs
Key installation factors include Exdb flameproof protection and IP66 sealing to maintain integrity in hazardous zones, and a top terminator box that simplifies cabling. Plan for adequate clearance, proper grounding of metallic surfaces, and standard mounting procedures for the 250 frame. Use compatible ABB control interfaces and ensure bearings (6315/C3 and 6313/C3) are correctly aligned during commissioning to maximize uptime.
The motor operates as a six-pole, 3-phase device with IE2 efficiency. Full-load efficiency is 92.9%, with partial-load figures around 93.3% at 75% load and 93.1% at 50% load. It uses Voltage Code D, supports S1 duty, and features IC411 insulation and IP66 protection. Altitude up to 1000 m and ambient temperature up to 40 °C are rated for reliable operation.
Yes. The Exdb flameproof protection and IP66 enclosure make it appropriate for hazardous area installations typical in mining and processing plants. The 6-pole design and IMB3 IM1001 mounting class support robust, continuous operation on conveyors and heavy equipment. The top-entry box and durable cast-iron frame simplify installation and maintenance in challenging environments.
This motor meets Exdb flameproof protection, IP66 ingress protection, IC411 insulation, and IE2 efficiency targets. It is intended for continuous operation (S1) and offers a robust design for hazardous environments up to 1000 m altitude and 40 °C ambient. The combination of flameproof rating, insulation class, and energy efficiency supports regulatory compliance and reduced operating costs.
Maintenance expectations center on durable bearings (6315/C3 and 6313/C3), a top-entry terminator box for easier wiring, and a cast-iron frame that tolerates long service intervals. ROI is driven by IE2 efficiency, reduced downtime from rugged construction, and lower energy costs in mining or heavy-industrial plants, with predictable lifecycle costs and compatible integration with ABB control systems.