24V 4KW DC Series Motor ZD2973H — 3000RPM 220A 15Nm Brushed Traction Motor for Forklift & Marine, IE4 Efficiency

This 24V 4KW DC series-wound motor model ZD2973H delivers 3000 RPM at 220A continuous current with 15Nm rated torque — a compact 127mm OD brushed motor weighing 18kg designed for electric forklift traction, marine propulsion, electric vehicle drive, and industrial power applications. The IE4 premium efficiency rating combined with series-wound construction provides high starting torque characteristics ideal for traction applications where heavy loads must be accelerated from standstill — the series field winding configuration naturally produces maximum torque at zero RPM that decreases as speed increases, matching the torque demand curve of material handling and vehicle propulsion systems. Drip-proof protected construction with 10,000-piece monthly supply capacity from the Jinle factory, dispatched from Shanghai port in carton packaging. CW (clockwise) rotation standard.

Installing the ZD2973H DC motor requires verifying the 127mm OD housing, mounting bolt pattern, and 15mm shaft diameter (verify with supplier) match the application’s motor mounting bracket and drive coupling. The 220A continuous current rating at 24V DC requires appropriately sized power cables — at this current level, 35mm² minimum cable cross-section is recommended for runs under 2 meters, with larger gauge required for longer cable runs to prevent voltage drop and terminal overheating. The brushed commutator design requires periodic carbon brush inspection — at 3000 RPM continuous duty in forklift applications, inspect brushes at 500-hour intervals and replace when worn to less than 50% of original length. The series-wound configuration means the motor must never be operated without a mechanical load — unloaded series motors can overspeed to destructive RPM levels. 10,000-piece monthly supply capacity with Shanghai port dispatch.

Technical Specifications

IE4 efficiency, drip-proof. 127mm OD, 18kg. CW rotation. Shanghai port, carton packaging. 10K/month supply. For bulk orders, contact us.