SEW-EURODRIVE RF27 DR63L4/BR Helical Geared Motor

Description

This is a flange-mounted helical geared motor from SEW-EURODRIVE, a global leader in drive technology. The model RF27 DR63L4/BR integrates a powerful 0.25 kW electric motor with a precision gearbox and a 400V AC holding brake. It is engineered for reliability and high performance in various industrial automation and material handling systems that require controlled motion and secure load holding.

Specifications

• Manufacturer: SEW-EURODRIVE
• Type: RF27 DR63L4/BR
• Power: 0.25 kW
• Output Speed: 58 rpm at 50 Hz / 72 rpm at 60 Hz
• Gear Ratio (i): 22.32
• Voltage (50 Hz): 220-240 V (Delta) / 380-415 V (Y)
• Current (50 Hz): 1.27 A / 0.73 A
• Brake: 400V AC, 1.6 Nm Torque, Rectifier BG1.2
• Mounting: Flange Mount (IM M1)
• Protection Class: IP 54
• Weight: 11.00 kg

Label Info

• Type: RF27 DR63L4/BR
• No.: 91.1317119302.0001.09
• cos phi: 0.81
• Lubricant: CLP PG 220 Synthetic Oil / 0.250L

Application

Ideal for conveyors, agitators, dosing pumps, and other machinery where precise speed reduction, high torque output, and reliable braking are essential. The robust design ensures a long service life even in demanding environments.

Country of Origin

Made in Holland.

CO2 Impact

Opting for this pre-owned geared motor saves an estimated 44.0 kg of CO2 compared to manufacturing a new one. This choice supports a circular economy and reduces industrial waste.

Availability

This unit is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

This motor is equipped with a manual brake release lever, visible at the non-drive end. To release the brake manually for maintenance or setup, you must pull this lever. Ensure the motor is de-energized and the load is secured before operating the manual release to prevent unexpected movement.

The nameplate specifies 'CLP PG 220 Synth.Oil', which is a synthetic polyglycol gear oil with a viscosity grade of 220. For this gearbox size and lubricant type, the oil is often considered lifetime-lubricated under normal operating conditions. However, for demanding applications, it is recommended to check the oil level and condition every 5,000 to 10,000 operating hours.

Yes, the SEW DR series motor is designed to be compatible with VFDs for speed control. However, when operating at low frequencies for extended periods, it is important to monitor motor temperature as the shaft-mounted fan becomes less effective. Also, ensure the VFD is configured correctly for the motor's voltage, current, and brake control, as the 400V AC brake will require separate power or a specific brake control output from the drive.

Last Update: Friday, March 13, 2026

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