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Siemens 1LE2421-3CB21-2AA3 75 HP General Purpose AC Motor

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ManufacturerSiemens

Part number1LE2421-3CB21-2AA3

Power Rating 75 HP

Speed Rating 1800 RPM

Voltage Rating 460V

Frequency 60 Hz

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NEMA Premium® Efficiency TEFC Enclosure IP54 Rated Cast Iron Frame 1800 RPM Speed 4-Pole Design

Product description

The Siemens 1LE2421-3CB21-2AA3 is a NEMA Premium® 75 HP AC Motor designed for general purpose applications. It operates at 1800 RPM and is powered by a 460 Volt AC, 3-phase, 60 Hertz supply. This motor features a TEFC (Totally Enclosed Fan Cooled) enclosure with an IP54 rating, offering protection against dust and water splashes. It is constructed with a cast iron frame and has an F insulation class.

This versatile motor is suitable for a wide range of industrial applications requiring reliable power. Its NEMA Premium® efficiency rating ensures energy savings and reduced operational costs.

Secure your Siemens 1LE2421-3CB21-2AA3 motor from Stanlo Automation, a veteran-owned surplus parts distributor. We pride ourselves on offering quality products and excellent customer service.

Technical specifications

Power Rating	75 HP
Speed Rating	1800 RPM
Voltage Rating	460V
Frequency	60 Hz
Phase	3
Enclosure	TEFC
IP Rating	IP54
Insulation Class	F
Frame Size	365T
Frame Material	Cast Iron

Common applications

General Industrial Applications

Pumps

Compressors

Fans

Conveyor Systems

Machine Tools

Compatible systems

Variable Frequency Drives (VFDs) Standard motor control centers Industrial machinery Automation systems

Also known as

Siemens 1LE24213CB212AA3 Siemens AC Motor 75HP 460V 1800 RPM Motor

Replaces / compatible with

This motor is designed for general-purpose applications and can replace older or standard efficiency motors. It is part of the Siemens low-voltage AC motor line.

Technical note

Expert tip

The TEFC enclosure provides essential protection against dust and liquid ingress, making it suitable for environments where standard open-drip motors would be inadequate.

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Frequently asked questions

What is the efficiency rating for the Siemens 1LE2421-3CB21-2AA3 motor?

The Siemens 1LE2421-3CB21-2AA3 motor is NEMA Premium® efficiency rated, achieving up to 95.4% efficiency. This high efficiency contributes to reduced energy consumption and lower operating costs.