ABB 3GJA312820-ADP 3-Phase squirrel cage motor - Exdb IE4
Part Number: 3GJA312820-ADP
Quick Summary
ABB 3GJA312820-ADP 3-Phase squirrel cage motor powers heavy-duty process equipment in hazardous locations. Engineers often struggle to meet flameproof safety, high IP protection, and efficiency targets while sustaining reliable output. This design delivers Exdb flameproof protection, IP55 enclosure, and IE4 efficiency, making it well-suited for continuous operation in harsh environments. The motor’s cast-iron frame and robust bearings support long life under demanding loads, while its S1 duty and 315 frame size enable straightforward integration with existing drives and gearboxes. By combining rugged construction with energy-efficient performance, it helps OEMs and maintenance teams reduce downtime and energy costs, while ensuring compliance and safer operation in hazardous zones. The result is a dependable, high-performance solution for hazardous-area drives and industrial automation applications.
Product Information
ABB Type Designation
M2JAX 315LKB 4
Invoice Description
M2JAX 315LKB 4
Product Name
3-Phase squirrel cage motor
Product Type
CJA5__M2JAX_IE4_Flameproof_Ex_db_CI
Made To Order
No
Minimum Order Quantity
1 piece
Order Multiple
1 piece
Selling Unit of Measure
piece
Country of Origin
China (CN)
Customs Tariff Number
85015381
Electrical Data
Temperature Class Default
T4
Altitude
1000 m
Ambient Temperature
40 °C
IC Class
IC411
IE Class Data (50 Hz)
IE Class IE4 | Full Load (100%) 97.2 % | Partial Load (75%) 97.3 % | Partial Load (50%) 97.1 %
IE Class Data (60 Hz)
IE Class IE4 | Full Load (100%) 97.1 % | Partial Load (75%) 97.0 % | Partial Load (50%) 96.5 %
IP Class
IP55
Insulation Class
ICLF
Direction of Rotation
Both sides
Number of Poles (High)
4
Two Speed Motor
No
Type of Duty
S1
Voltage Code
D
EX-Protection
Exdb
Gas Group
IIB
Frame Material
Cast Iron
Frame Size
315
Bearing
6319/C3
Bearing NDE
6316/C3
IM Class
IMB3 IM1001
Terminator Box Location
D-End top
Package Level 1 Units
0 pallet (lift)
Product Net Depth / Length
1475 mm
Product Net Height
929 mm
Product Net Width
654 mm
Product Net Weight
1571 kg
Gross Weight
1591 kg
UNSPSC
26101100
Exdb flameproof protection is integrated into the ABB 3GJA312820-ADP, enabling safe operation in hazardous-area installations. The Exdb rating means internal arcs and hot surfaces are contained, reducing ignition risk in IIB gas environments and improving regulatory compliance. This capability is essential for chemical processing, offshore platforms, and petrochemical plants where safety margins are non-negotiable. IE4 energy efficiency translates to meaningful operating cost reductions across the motor's life cycle. The IE Class Data confirms full-load efficiency near 97% at 100% load and slightly higher at partial loads, delivering lower energy consumption under real-world duty. Coupled with S1 continuous duty, the motor provides reliable performance while minimizing energy waste in pumps and fans. IP55 protection and insulation class ICLF support durable operation in dusty, moist, or wash-down environments. The cast-iron frame and high-load bearings deliver long service life with low maintenance, making this motor ideal for conveyors, crushers, and mixers in cement, mining, and chemical plants. Frame size 315 and 4-pole construction ensure robust performance. The Terminator Box Location at D-End top supports compact, accessible wiring and easy installation in existing switchgear. The option for reversible rotation on both sides offers installation flexibility in pump and fan drives. Installation and compatibility details include a 315 frame, 4-pole design, 1475 mm length, 654 mm width, 929 mm height, and net weight 1571 kg, with gross weight 1591 kg. The Exdb protection, voltage code D, and gas group IIB align with hazardous-area compliance, while IM Class IMB3 IM1001 supports versatile mounting and service life.
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FAQs
For safe hazardous-area installation, verify Exdb flameproof protection, IP55 enclosure, and gas-group IIB suitability. Ensure the Terminator Box is accessible at the D-End top and that mounting uses IMB3 IM1001 criteria. Plan space using the 315 frame, 1475 mm length, and 654 mm width to fit the existing skid and switchgear.
IE4 efficiency lowers energy consumption across full-load and partial-load conditions. With Full Load near 97% efficiency at 100% load and over 97% at partial loads, running this motor on an S1 duty cycle reduces energy bills and heat generation, translating to lower cooling requirements and extended equipment life.
Yes. The motor carries Exdb flameproof protection and IIB gas-group ratings, designed for ATEX/IECEx environments. Its IP55 rating and IC411 insulation further support operation in dusty, humid, or chemically aggressive zones, making it suitable for chemical plants and offshore installations.
Check shaft alignment, coupling compatibility, and mounting footprint to match the 315 frame and 4-pole design. Confirm wiring access with the D-End top terminator box and ensure the driving system supports the 1475 mm length and 929 mm height. Verify the weight class around 1571 kg for hoisting and foundation requirements.
UPGRADING to IE4 in hazardous-area drives typically yields measurable ROI through energy savings, reduced heat load, and lower cooling costs. The Exdb certification and robust build also reduce downtime and maintenance costs in challenging environments, improving uptime and long-term project economics for OEMs and maintenance teams.