Best SEW Eurodrive DT DR Series DT90S4 AC Motor DRS71M4 Asynchronous Motor Manufacturer, Manufacturers

1 / 5

Best SEW Eurodrive DT DR Series DT90S4 AC Motor DRS71M4 Asynchronous Motor Manufacturer, Manufacturers

The DT and DR series motors represent SEW Eurodrive's classic range of asynchronous motors, designed respectively for general industrial and precision transmission applications:

DT90S4: High-power standard AC motor delivering stable output performance with robust environmental adaptability, suitable for heavy-duty continuous operation.

DRS71M4: Compact asynchronous motor with outstanding dynamic response, suitable for applications involving frequent starts/stops and speed regulation. Flexibly compatible with inverters and gearboxes.

Both models feature a modular design for simplified maintenance and component replacement. Products comply with IEC international standards and hold multiple international certifications, ensuring global applicability.

Send Inquiry

Product Description

Overview
Specifications
Models
Delivery Information
Manuals + Resources

DT90S4 AC Motor and DRS71M4 Asynchronous Motor are two core products in the DT/DR series, featuring high reliability, flexible adaptability, and energy efficiency. They are widely used in industrial transmission systems.

DT90S4 AC Motor

Basic Parameters

Power Rating: 1.1kW (1.5HP), with a service factor of 1.15, built to withstand short-term overloads.
Speed Performance: Rated speed of 1500rpm at 50Hz and 1800rpm at 60Hz. Full-load speed is approximately 1740rpm (60Hz) with high speed stability.
Voltage & Frequency: Rated voltage of 400V (3-phase) or 575V (special version). Frequency range: 50/60Hz ±5%.

Structural Design

Frame Size: 90S, shaft center height of 90mm.
Enclosure & Cooling: Lightweight aluminum alloy shell for superior heat dissipation. Protection level: IP55, TEFC (totally enclosed fan cooling).

Performance Advantages

Insulation: Class F (155°C) to operate stably in high-temperature environments.
Electrical stats: Power factor of 0.77, rated current of 2.95A with high energy utilization and stable load currents.

Installation & Dimensions

Mounting: Standard B3 (foot mounting). Custom configurations available.
Dimensions: Shaft diameter 24mm, shaft length 50mm. Bottom hole spacing: 140mm (horizontal) × 286-311mm (longitudinal). Bolt hole diameter: 10mm.
Weight: Net weight is approximately 24.15kg.

DRS71M4 Asynchronous Motor

Basic Parameters

Power & Torque: Rated power of 0.55kW (0.75HP). Rated torque of 3.5Nm, starting torque ≥2.5 times rated torque. Max torque up to 3.5 times rated torque.
Speed Regulation: Rated speed of 1500rpm at 50Hz. Offers wide frequency conversion range, supporting constant torque operation below 50Hz and constant power above 50Hz.
Voltage & Protection: Voltage range: 3×380-500VAC. Optional IP54/IP55 protection. Class F insulation.

Performance Advantages

Design: Compact frame size (71M) suitable for restricted space installations.
Operation: Low operational noise and small vibration amplitude. Can be paired with encoders for closed-loop control and higher accuracy.
Control Dynamics: Capable of starting and stopping up to 600 times/hour when paired with a frequency converter.

Installation & Dimensions

Mounting: Standard B14 (flange mounting) designed to connect directly with gearboxes and reducers.
Dimensions: Shaft diameter 20mm (standard) or 25.4mm (1-inch special version).
Weight: Net weight is approximately 12.64kg.

Application Scenarios

DT90S4: Highly suited for continuous heavy-duty transmission systems in metallurgy, cement, and lifting industries. Common applications include conveyor belts, mixers, and water pumps.
DRS71M4: Ideal for precision transmission scenarios including food packaging machines, printing machines, and automated production lines. Can also pair with servo reducers for laser cutting and CNC machinery.

Parameter Category	DT90S4 AC Motor	DRS71M4 Asynchronous Motor
Basic Information
Model	DT90S4	DRS71M4
Category	Integral Motor	Brake Motor (Optional)
Frame Size	90S	71
Frame Material	Aluminum	Aluminum
Electrical Specifications
Rated Power	1.5 HP (1.1 kW)	0.75 HP (0.55 kW)
Voltage	575 V (3-phase) / 380-500 VAC	220-230 VDC / 380-400 VAC / 277/480 VAC
Frequency	60 Hz / 50/60 Hz	50/60 Hz
Phase	3-phase	3-phase
Rated Speed	1800 rpm (60Hz)	1500 rpm (50Hz, 4-pole)
Full-load Speed	1740 rpm	N/A
Rated Current	3.5 A	N/A
Power Factor (cos φ)	N/A	0.69 (Reference similar models)
Efficiency Class	Standard Efficiency	IE1 (Eff2)
Insulation Class	F (155°C)	N/A
Mechanical Specifications
Enclosure Type	TEFC (Totally Enclosed Fan Cooled)	IP55
Mounting Type	N/A	B14 (Inner Flange)
Shaft Diameter	N/A	14 mm
Shaft Length	N/A	30 mm
Shaft Key Size	N/A	Width: 5 mm; Length: 22 mm
Physical Characteristics
Weight	24.15 kg	12.64 kg
Additional Features
Brake Option	N/A	AC Brake (Optional, Model: DRS71M4BE1/FT)
Service Factor	1.15	N/A
Paint Coat	RAL 5001 (Green Blue, Reference similar models)	N/A
Explosion Protection	N/A	No ATEX Protection

DT90S4 AC Motor

A high-power standard AC motor with stable output performance and strong environmental adaptability, suitable for heavy-duty continuous operation.

DRS71M4 Asynchronous Motor

A compact asynchronous motor with excellent dynamic response, suitable for applications requiring frequent start-stops and precise speed regulation. Easily pairs with frequency converters and gearboxes.

DT90S4 Net Weight: 24.15kg DRS71M4 Net Weight: 12.64kg

Delivery information typically includes shipping times, packaging configurations, and methods, which can vary depending on local supply conditions and logistics requirements.

Technical Document 02

Resource File

Technical Document 01

Resource File

Frequently Asked Questions

What is the rated power difference between the DT90S4 and the DRS71M4?

The DT90S4 is a high-power motor with a rating of 1.1kW (1.5HP), whereas the DRS71M4 is designed for more compact applications with a rated power of 0.55kW (0.75HP).

What are the standard mounting options for these motors?

The DT90S4 AC motor standards feature B3 (foot mounting), while the DRS71M4 asynchronous motor typically comes configured with B14 (flange mounting) to facilitate direct connection with gearboxes.

Can the DRS71M4 motor handle frequent start-stop cycles?

Yes, when configured with a frequency converter, the DRS71M4 is rated to start and stop frequently, up to 600 times per hour, making it ideal for automated systems.

What protection ratings (IP) do these motors offer?

The DT90S4 features an IP55 protection rating with a totally enclosed fan cooled (TEFC) design. The DRS71M4 features an optional IP54/IP55 enclosure depending on environmental requirements.

What are the key application areas for each motor?

The DT90S4 is suited for heavy-duty, continuous operations like conveyor belts, mixers, and pumps in metallurgy and cement plants. The DRS71M4 is optimized for precision transmission like food packaging, printing, and automated assembly lines.

Product Detail

Best SEW Eurodrive DT DR Series DT90S4 AC Motor DRS71M4 Asynchronous Motor Manufacturer, Manufacturers

Product Description

Related Products

Product Detail

Best SEW Eurodrive DT DR Series DT90S4 AC Motor DRS71M4 Asynchronous Motor Manufacturer, Manufacturers

Product Description

Related Products

Wholesale SIEMENS TXM1.8D 8 Digital Input Module Manufacturers, Product

China SIEMENS QAE3174D.015 Immersion temperature sensor Manufacturer, Supplier

Best SIEMENS SIRIUS 3RA6120-1DP32 fuseless compact starters Exporter, Products

Custom SIEMENS Driving Steering System SIMOTICS 2AG5111-1AB21-0AA0 Supplier, Products

Custom SIEMENS 3RV2907-1AB00 infeed system Manufacturer, Exporter

Custom SIEMENS 3RK3 3RK3131-1AC10 modular safety relay Products, Product

Wholesale Keysight Oscilloscopes from the InfiniiVision HD3 Series Suppliers, Exporter

China Keysight High-Definition Oscilloscope DSOS804A: 4 Analog Channels, 8 GHz Manufacturer, Suppliers

Best Tektronix ATI Performance Oscilloscope DPO70000SXs DPO77002SX/DPS77004SX DPO75902SX/DPS75904SX Exporters, Product

China Tektronix Isolated Current Probes (IsoVuTM)-TICP100 TICP050 TICP025 Manufacturers, Product