Maxon M021204A 48V DC Servo Motor 1020 RPM 250W Planetary Gearbox 10-Pin Encoder

Maxon M021204A 48V DC Servo Motor 1020 RPM 250W Planetary Gearbox 10-Pin Encoder

The Maxon M021204A is a Swiss-made 48V DC servo motor featuring an integrated planetary gearbox and a Maxon tacho encoder with 10-pin wiring harness. This assembly combines precise rotational control with geared torque multiplication, making it a compact, high-performance drive unit suitable for demanding motion control applications. The motor is rated for 1020 RPM operating speed and 250W continuous output power (at 40°C ambient), with a 120A peak current rating and Class F insulation.

Specifications & What's Included

• Model: Maxon M021204A
• Operating Voltage: 48V DC
• Operating Current: 2.10 A
• Peak Current: 120 A
• Operating Speed: 1020 RPM
• Continuous Output Power: 250W (at Ta = 40°C)
• Insulation Class: Class F (rated to 155°C)
• Gearbox Type: Planetary gearbox — integrated inline with motor body
• Encoder: Maxon Tacho — 10-pin wiring harness
• Encoder Pin Allocation: Pin 1 Vcc, Pin 2 n.c., Pin 3 Gnd, Pin 4 n.c., Pin 5 Channel I, Pin 6 Channel I, Pin 7 Channel B, Pin 8 Channel B, Pin 9 Channel A, Pin 10 Channel A, Pin 11 n.c., Pin 12 n.c.
• Motor Connections: 1 Vcc CCW / 1 Gnd CW; 2 Gnd CCW / 2 Vcc CW
• Country of Manufacture: Switzerland (Swiss Made)
• Included: Motor with planetary gearbox, 10-pin encoder harness, cylindrical aluminum mounting adapter, mounting hardware (spacers and washers), black mounting/adapter plate

Applications

Maxon DC servo motors are precision motion control components used in industrial automation, robotics, medical devices, semiconductor handling equipment, laboratory automation, and scientific instruments. The planetary gearbox stage increases output torque while reducing output speed, making this type of assembly well suited for positioning systems, robotic joints, conveyor drives, and precision linear or rotary actuators where controlled torque and speed are critical. Maxon motors are widely specified in applications requiring high reliability and accuracy in compact form factors — including surgical robotics, automated test equipment, and aerospace ground support systems. The 48V DC bus voltage is common in battery-powered and 48V industrial DC distribution systems. The integrated tacho encoder provides quadrature feedback (Channel A and B) plus an index pulse (Channel I), enabling closed-loop position and velocity control when paired with a compatible servo drive or motion controller.