SEW DRN71M4/DH Three‑Phase AC Motor

Module Feature

DRN71M4/DH is SEW DRN series IE3 high‑efficiency 4‑pole three‑phase asynchronous motor. Frame size 71M, /DH stands for condensation drain hole design. Compact cast iron housing, good heat dissipation performance. Mainly matched with SEW gear units, widely used for conveyors, small processing equipment and general automation drive.

Working principle

Three‑phase alternating current flows into stator windings to generate rotating magnetic field. Magnetic force drives rotor to rotate and output mechanical torque. The motor realizes energy conversion from electrical energy to mechanical energy.

Onboard components

Stator‑rotor assembly, cast iron housing, terminal box, bearing set, condensation drain hole, sealing components.

LED indicators

No onboard LED indicators. Operating status judged by temperature, noise and vibration.

Hardware self‑diagnosis

Check winding insulation resistance, monitor housing temperature, inspect abnormal noise and vibration, verify terminal tightness.

Programming software

No configuration software, fixed mechanical‑electrical parameters.

Electrical & Process Parameters

Model:DRN71M4/DH Brand:Sew Device type:Three‑Phase AC Induction Motor Pole:4‑pole Efficiency Class:IE3 Frame size:71M Function:Provide mechanical drive power for industrial equipment

Mechanical & Structure

Mounting:Foot / flange mounting Protection class:IP54 Housing:Cast iron housing

Environmental

Operating temperature:-20℃ ~ +40℃ Storage temperature:-30℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:IE3 IEC efficiency standard compliant Status: SEW original DRN series AC motor

Installation

Install motor on rigid base or connect to gear unit. Confirm power supply matches rated voltage. Fasten terminal screws, check drain hole is unblocked before power‑on test run.

Interface

Three‑phase power terminal block, shaft end for gear unit coupling.

Diagnostic

Motor overheat: overload, wrong voltage or blocked ventilation. Abnormal noise: bearing damage or mis‑alignment. Insulation failure: moisture accumulation, check drain hole function.

Product Brief

SEW DRN71M4/DH IE3 three‑phase asynchronous motor, compact high‑efficiency drive for SEW geared‑motor combinations and small industrial machinery.