SGM-04V3B4 is a 400W permanent magnet AC servo motor from Yaskawa first-generation Sigma series with three-phase AC200V rating. The letter V represents low-inertia rotor structure for fast dynamic response, B means built-in electromagnetic power-off brake, and suffix 4 indicates separate aviation plug wiring for power and encoder cables with standard keyed output shaft.

Rated input is three-phase AC200V with rated continuous current of 2.6A RMS. Its rated continuous torque is 1.27N·m and short-time peak torque reaches three times the rated value to satisfy quick acceleration demand. Rated rotating speed is 3000rpm while maximum allowable no-load speed is 4500rpm. It is equipped with 2048PPR differential incremental A/B/Z line driver encoder for closed-loop position feedback, and the motor winding adopts Class B insulation standard.

The motor uses standard 60mm square flange mounting structure and 14mm diameter output shaft with built-in flat key. Fully enclosed housing achieves IP64 protection grade with natural air cooling without extra cooling fan. Due to the built-in brake component, the net weight is around 1.45kg with compact overall size.

Continuous operating ambient temperature ranges from 0°C to +40°C, and storage temperature is between -20°C and +85°C when power disconnected. Working relative humidity should keep within 20% to 80% without condensation. It shall be kept away from corrosive gas, oil mist and heavy dust. For installation above 1000 meters altitude, proper power derating is required.

This motor matches SGDA-04AS and SGDS-04A 200V-class Yaskawa servo drives. With power-off holding brake, it is widely applied on vertical lifting axes, Z-axis of small CNC equipment, automatic dispensing machinery, labeling devices and mini automated handling equipment to prevent load falling after power failure.

Low inertia rotor brings fast acceleration and deceleration response and outstanding dynamic performance. Built-in brake effectively locks shaft when power cuts off. The whole motor runs smoothly at low speed with low noise and strong overload capacity, featuring stable long-term operation reliability.