Siemens 6SE9221-3DC40 Refurbished MICROMASTER MM550/3 5.5 kW AC Drive

The Siemens 6SE9221-3DC40, also identified as 6SE92213DC40, is a Siemens MICROMASTER MM550/3 frequency inverter designed for three-phase industrial motor control applications. This 5.5 kW constant-torque AC drive is designed for 3-phase 380–500 VAC ±10% input power at 50/60 Hz. The unit is an unfiltered drive with an IP20 protection rating and is designed to provide reliable variable-speed control for compatible industrial motors and automation systems.

The 6SE9221-3DC40 belongs to the Siemens MICROMASTER family and is specifically identified as the MM550/3 model. The drive has a 5.5 kW constant-torque rating, an overload capability of 150% for 60 seconds, and a rated output current of approximately 11.8 A. It supports output frequencies up to 400 Hz and has a compact 215 x 185 x 195 mm enclosure size, making it suitable for a variety of industrial motor-control installations.

The Siemens 6SE9221-3DC40 is a legacy MICROMASTER component that has been discontinued by the manufacturer. For businesses operating existing equipment, a professionally refurbished unit can provide a practical replacement solution without requiring immediate redesign or replacement of the complete drive system. This makes refurbished units particularly useful for maintaining older manufacturing machinery, automation equipment, and motor control installations.

York Scientific offers professionally refurbished Siemens 6SE9221-3DC40 MICROMASTER MM550/3 AC Drives that are thoroughly inspected, professionally cleaned, electrically tested, and functionally verified before shipment. Our refurbishment process is intended to provide a dependable replacement solution while helping customers reduce equipment downtime and extend the service life of compatible Siemens industrial drive systems.

*Actual item may vary.

Siemens 6SE9221-3DC40

Manufacturer: Siemens

Product Description: Ac Drive Frequency Inverter Input 380-500 Vac 50/60 Hertz 3 Phase Output 0-input Voltage (380-500 Vac) 3 Phase 11.38 Amp 0-400 Hertz 5500

Part Number: 6SE9221-3DC40

Condition: Refurbished and Tested

Units in Stock: 6

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Repair Price: $1534.93 Includes 2 Years Warranty!

Our repair process is as simple as it is fast: enter details below and we will email you an RMA number along with the shipping instructions. Once we receive your defective equipment, our service team will contact and assist you until your repair is completed.

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Description Ac Drive Frequency Inverter Input 380-500 Vac 50/60 Hertz 3 Phase Output 0-input Voltage (380-500 Vac) 3 Phase 11.38 Amp 0-400 Hertz 5500

RUSH Processing charge $195

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Upon repair completion our service team will contact you for payment. Should equipment be deemed non-repairable, you will not be charged - rush fee (if selected) is non-refundable.