Technical Specifications

Parameter Name	Parameter Value
Product Model	3HAC3403-1/2
Manufacturer	ABB
Product Type	AC Permanent Magnet Synchronous Servo Motor
Applicable Robots	ABB IRB 6600, IRB 7600, IRB 2400 Series
Motor Type	3-Phase AC Permanent Magnet Synchronous (PMSM)
Rated Power	2.5 kW (Continuous)
Rated Torque	8.0 N·m
Peak Torque	24.0 N·m (Short-time)
Rated Speed	3000 rpm
Maximum Speed	4500 rpm
Encoder Type	Incremental Optical Encoder, 1024 PPR (RS422 A/B/Z Output)
Protection Rating	IP65 (Dust-tight and Water-jet Protected)
Cooling Method	Natural Convection (IC 0041)
Mounting Flange	IEC 60034-5 Standard, with Keyed Output Shaft (22 mm)
Weight	Approx. 12 kg
Operating Temperature	0°C to +40°C (Ambient)
Brake	Optional Electromagnetic Holding Brake (Integrated)

 

Main Features and Advantages

High Power Density for Robotic Joints: The ABB 3HAC3403-1/2 is purpose-built to meet the stringent space and weight constraints of a robotic arm. Its PMSM design, utilizing high-strength laminated rotor cores and rare-earth permanent magnets, yields exceptional torque-to-weight and power-to-weight ratios . This allows the ABB 3HAC3403-1/2 to deliver the 8.0 N·m of continuous torque and 24.0 N·m of peak torque needed to accelerate heavy manipulator links and payloads with agility, while its compact form factor ensures it fits within the tight envelope of the robot’s joint housing.

Robust Construction for Demanding Environments: Reliability is non-negotiable in 24/7 production environments, and the ABB 3HAC3403-1/2 is engineered to deliver. Its IP65-rated enclosure provides a robust defense against the ingress of dust, oil mist, and water jets, a common requirement in automotive stamping and welding plants . The stator winding undergoes a vacuum impregnation process, enhancing its resistance to moisture, contaminants, and high-voltage stress. This robust construction ensures that the ABB 3HAC3403-1/2 can operate for tens of thousands of hours in harsh foundry and machining environments with minimal maintenance .

Seamless Integration and Precision Feedback: A key advantage of the ABB 3HAC3403-1/2 is its complete mechanical and electrical compatibility with ABB robotic systems. It features a standardized mechanical interface—including an IEC 60034-5 compliant mounting flange and a 22 mm keyed output shaft—that ensures direct bolt-on replacement without any modifications to the robot structure . The integrated 1024 PPR incremental encoder provides high-resolution position and speed feedback to the IRC5 or OmniCore controller . This compatibility allows the controller to automatically identify the motor and load its optimal parameter set, simplifying commissioning and ensuring the high dynamic performance that ABB robots are known for.

Ease of Maintenance and Reduced Downtime: The ABB 3HAC3403-1/2 is designed as a consumable spare part, enabling quick, direct replacement on the production line. This “plug-and-play” characteristic is a significant operational advantage; when a motor fails, maintenance personnel can replace the ABB 3HAC3403-1/2 without re-engineering the robot, adjusting mechanical stops, or performing complex zero-point recalibration . This capability reduces mean time to repair (MTTR), a critical factor for maintaining overall equipment effectiveness (OEE) in high-volume manufacturing.

 

Application Field

The ABB 3HAC3403-1/2 is a cornerstone component in automotive manufacturing, where it is most extensively deployed in body-in-white (BIW) welding lines. Here, the motor drives the axes of IRB 6600 and IRB 7600 robots performing spot welding, material handling, and part transfer tasks . These applications demand the high torque and fast dynamic response of the ABB 3HAC3403-1/2 to maintain the high cycle counts and consistent weld quality required for modern vehicle production. Its IP65 rating ensures it withstands the weld spatter, oil, and dust prevalent in press and welding shops .

Beyond the automotive industry, the ABB 3HAC3403-1/2 is used in heavy engineering and metal fabrication for handling large components, such as in the assembly of construction machinery and railway vehicles . It is also found in foundry applications, where its robust sealing protects internal components from sand and abrasive dust. In more general industrial automation, the ABB 3HAC3403-1/2 is employed in heavy-duty non-standard automation equipment, including large gantry systems, high-speed sorting modules, and heavy AGV drive wheels . Its high power density makes it an ideal solution for any application that requires precise, high-torque motion control in a compact, robust package.