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Siemens 1LE1503-2BB23-4FB4 3kW 400V TEFC Motor

Siemens 1LE1503-2BB23-4FB4 3kW 400V IE3 TEFC Motor

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ManufacturerSiemens

Part number1LE1503-2BB23-4FB4

Power 3.0 kW

Voltage 400V

Speed 1470 RPM

Frequency 50 Hz

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12-month warranty

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Veteran-owned

CAGE: 9NK75

IE3 Efficiency IP55 Protection Totally Enclosed Fan Cooled Cast Iron Housing High Starting Torque Robust and Reliable

Product description

The Siemens 1LE1503-2BB23-4FB4 is a high-efficiency, three-phase asynchronous motor delivering 3.0 kW at 400V with a speed of approximately 1470 RPM. It conforms to IE3 efficiency standards and features an IP55 enclosure for protection against dust and water. This model includes a separate fan for enhanced cooling (TEFC).

This motor is engineered for demanding industrial applications, including pumps, fans, compressors, and material handling systems, especially in environments where continuous operation or higher ambient temperatures are a factor. The enhanced cooling ensures reliable performance.

Stanlo Automation, a veteran-owned distributor of surplus industrial parts, offers the Siemens 1LE1503-2BB23-4FB4 motor. We provide a reliable source for quality automation components, ensuring you get the parts you need to minimize downtime.

Technical specifications

Power	3.0 kW
Voltage	400V
Speed	1470 RPM
Frequency	50 Hz
Efficiency	IE3
Protection	IP55
Frame Size	132S
Cooling	TEFC (Separate Fan)

Common applications

Pumps

Fans

Conveyors

Compressors

Processing Machinery

Material Handling

Compatible systems

Standard IEC B3/B5 mounting Direct on line starting VFD compatibility

Also known as

Siemens Simotics Motor 1LE1503-2BB23-4FB4 3kW 400V Fan Cooled

Replaces / compatible with

This 3.0 kW TEFC motor is an excellent replacement for older Siemens motors or for applications requiring enhanced cooling for sustained high performance.

Technical note

Expert tip

The separate cooling fan is driven by a small auxiliary motor or directly by the motor shaft, ensuring cooling even at low operating speeds.

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Frequently asked questions

Why choose a TEFC motor like the Siemens 1LE1503-2BB23-4FB4 for industrial use?

The TEFC (Totally Enclosed Fan Cooled) design of the Siemens 1LE1503-2BB23-4FB4 motor ensures effective heat dissipation through an external fan, making it ideal for continuous duty cycles and environments with higher ambient temperatures.