Product Description:

The KPER80G4/07.MV.301-5300/8382 is a synchronous servo motor manufactured by KEB within the SM Synchronous Servo Motors series. In industrial automation, it converts three-phase electrical power into regulated shaft rotation so that motion controllers can maintain precise velocity and position. The motor is intended for continuous S1 duty, and its frame, windings, and bearings support extended cycles in packaging machines, indexing tables, and auxiliary pump drives without requiring intermediate mechanical transmissions. When paired with a compatible drive, it can provide repeatable acceleration, stable running speed, and accurate stopping behavior during normal production operation.

At 50 Hz, the motor delivers a rated mechanical output of 0.75 kW. This output is produced with a continuous shaft torque of 5.2 Nm at a synchronous speed of 1380 rpm, which suits direct-coupled loads and common belt-driven arrangements. When powered from a 400 V supply, the phase windings draw 2.04 A, helping keep current demand within a modest range for matching drive electronics and cable sizes. Full-load efficiency reaches 71.5 %, which helps limit wasted energy during constant-duty operation. The 0.74 power factor keeps reactive current lower than the apparent power draw would otherwise suggest, and the starting current ratio of 4.4 keeps inrush within the range expected by standard inverter-fed systems. Thermal class 155 (F) insulation allows the windings to operate at elevated internal temperatures while maintaining dependable electrical separation.

Mechanical response is influenced by a rotor moment of inertia of 0.00107 kg·m², which supports responsive acceleration and deceleration during short indexing moves. The housing has an IP55 rating, which helps limit dust entry and resist low-pressure water jets around the machine. Total mass is 11.7 kg, so the mounting surface should be rigid enough to support the motor without unwanted movement or vibration. Under transient demand, the electromagnetic circuit can develop a breakdown torque ratio of 2.2, giving the motor additional pull-through capability during brief overload events or temporary load disturbances. This reserve can help the axis recover speed when the driven load rises for a short period.