The main purpose of the traction system is to provide traction power and braking force to respectively accelerate and decelerate EMU speed. When the traction system receives an accelerating signal, it controls the IGBT via inverter to transform 750V alternating current (AC) into three-phase electric power and VVVF which will activate the squirrel-cage motor to generate propulsion to the EMU. On the contrary, when the system receives a decelerating signal, it controls the IGBT to convert the motor into a generator and then transforms the motor's torque, which is defined by slip, into braking force. During the braking process, the electric power generated from the generator will preferably be transferred back to the third rail, which is called the "regenerative braking system".
The EMU formation adopted the "all motor car model" in which each car is installed with a traction system and each axle is distributed with a traction motor. The rated output of each motor is 185 kW and its weight is 627 kg. To ensure maintainability of the traction motor, anti-electric corrosion bearings and flame retardant cables were used and with a lubricating hole on the motor, lubricant can be filled up periodically without having to uninstall the traction motor.