BAMSI 300 Overview: 300 A Brushed DC Controller

BAMSI 300 is the flagship of NESDrive’s brushed DC motor controller series BAMSI. It delivers 300 A rated and 450 A peak current across 12–72 V and is designed for heavy-duty forklifts and warehouse equipment. It is also used to modernise vehicles with brushed or series-wound DC motors without replacing the motor.

Key Ratings

• Operating voltage: 12–72 V DC
• Current: 300 A rated, 450 A peak (RMS)
• Compatible motors: brushed DC and series-wound DC
• Topology: four-quadrant (4Q) regenerative
• Communication: Modbus; RS232 interface
• Feedback: encoder (optional)
• I/O: 5 digital inputs, 2 analog inputs, 2 digital outputs
• Operating temperature: −10 °C / +40 °C

Highlights

BAMSI 300 brings the full benefits of 4Q control to brushed DC motors: forward and reverse driving, active braking in both directions and returning braking energy to the battery. High peak current prevents power loss when starting under load and climbing ramps. Multi-layer protection guards the drive and motor in harsh warehouse conditions.

Where It Is Used

• Heavy-duty battery forklifts
• Warehouse and logistics equipment
• Modernising older vehicles with brushed DC motors
• High-current DC traction systems up to 72 V

BAMSI 300 or Another Model?

If you need the 50 A class, BAMSI 200 is more economical. If your motor is brushless, the equivalent in this current class is TULPAR 300. If you are switching from an imported controller, replacing an imported forklift controller will guide you; all DC models are on our DC motor controller page.

For the specification table, user manual and wiring diagram, visit the BAMSI 300 product page.