Siemens 6SE3121-7DG40 Refurbished SIMOVERT P MIDIMASTER 7.5 kW AC Drive

The Siemens 6SE3121-7DG40, also identified as 6SE31217DG40, is a Siemens SIMOVERT P MIDIMASTER AC drive designed for dependable variable-speed control of industrial motors. This three-phase drive is designed for a 380–500 VAC input supply at 50/60 Hz and has a rated output of 7.5 kW. The drive is commonly associated with approximately 10 HP motor applications and is suitable for a wide range of industrial motor control and automation systems.

The 6SE3121-7DG40 belongs to the Siemens SIMOVERT P MIDI MASTER family and is designed for reliable AC motor speed control in demanding industrial environments. Technical references identify the unit as a three-phase 380–500 V drive with a rated output of 7.5 kW and approximately 16.5 A output current at 400 V. Its robust industrial design makes it suitable for integration into compatible machinery, control panels, production equipment, conveyors, and existing Siemens drive systems.

York Scientific offers professionally refurbished Siemens 6SE3121-7DG40 SIMOVERT P MIDIMASTER AC Drives that are thoroughly inspected, professionally cleaned, electrically tested, and functionally verified before shipment. Each unit undergoes a comprehensive quality assurance process to help minimize unexpected equipment downtime and provide a dependable replacement solution for existing Siemens automation systems.

Choosing a professionally refurbished 6SE3121-7DG40 provides a cost-effective alternative to sourcing new or difficult-to-find legacy drive equipment. A refurbished replacement can help extend the operational life of existing machinery while reducing the cost and downtime associated with replacing an entire drive system. York Scientific also provides repair, refurbishment, diagnostic, and exchange services for Siemens SIMOVERT and MIDIMASTER drives and other industrial automation components.

Siemens 6SE3121-7DG40
*Actual item may vary.

Siemens 6SE3121-7DG40

Manufacturer: Siemens
Product Description: Simovert P Micromaster Drive 10hp 380/500v 30amp 7500w
Part Number: 6SE3121-7DG40
Condition: Refurbished and Tested
Units in Stock: 6


Repair Price: $1732.32 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.

Typical Applications

The Siemens 6SE3121-7DG40 SIMOVERT P MIDIMASTER AC Drive is commonly used in a variety of industrial motor control and automation applications, including:

  • Industrial Automation Systems
  • Variable-Speed Motor Control
  • Manufacturing Machinery
  • Production Equipment
  • Machine Tools
  • Conveyor Systems
  • Material Handling Equipment
  • Industrial Processing Machinery
  • Motor Speed Control Systems
  • Legacy Siemens MIDIMASTER Systems

Key Features

  • Manufacturer: Siemens
  • Part Number: 6SE3121-7DG40
  • Alternate Part Number: 6SE31217DG40
  • Product Family: SIMOVERT P MIDIMASTER
  • Product Type: AC Drive / Variable Frequency Drive
  • Input Voltage: 3-Phase 380–500 VAC
  • Input Frequency: 50/60 Hz
  • Rated Output: 7.5 kW
  • Typical Motor Rating: Approximately 10 HP
  • Output Current: Approximately 16.5 A at 400 V
  • Three-Phase Drive Configuration
  • Designed for Industrial Motor Control
  • Suitable for Legacy SIMOVERT Applications
  • Suitable for MIDIMASTER Drive Systems
  • Professionally Refurbished and Fully Tested

Quality Assurance

Every refurbished Siemens 6SE3121-7DG40 SIMOVERT P MIDIMASTER AC Drive undergoes a detailed quality assurance process before shipment. Each unit is carefully inspected, professionally cleaned, electrically tested, and functionally verified by experienced technicians to help ensure dependable performance in demanding industrial environments.

York Scientific follows rigorous refurbishment and testing procedures to provide reliable replacement automation components. Each drive is evaluated for proper electrical and operational performance before shipment. This process helps provide a dependable and cost-effective alternative to new equipment while helping reduce unnecessary industrial downtime.

Repair & Exchange Services

York Scientific offers professional repair and exchange services for the Siemens 6SE3121-7DG40 SIMOVERT P MIDIMASTER AC Drive. Our experienced technicians perform comprehensive diagnostics, component-level troubleshooting, electronic repairs, rebuilding, and functional testing to help restore industrial drive equipment to dependable operating condition.

If your existing 6SE3121-7DG40 is malfunctioning, displaying fault conditions, or experiencing intermittent performance issues, York Scientific can provide diagnostic and repair solutions designed to help reduce equipment downtime and extend the service life of your industrial automation system.

Why Choose York Scientific?

  • Professionally Refurbished Siemens Equipment
  • Comprehensive Inspection and Functional Testing
  • Experienced Industrial Electronics Technicians
  • Reliable Replacement Products
  • Cost-Effective Alternative to New Equipment
  • Fast Worldwide Shipping
  • Repair and Exchange Services Available
  • Experience with Siemens SIMOVERT Equipment
  • Support for Legacy Industrial Drive Systems
  • Responsive Technical Support

Frequently Asked Questions

Is the Siemens 6SE3121-7DG40 tested before shipment?

Yes. Every refurbished Siemens 6SE3121-7DG40 is thoroughly inspected, professionally cleaned, electrically tested, and functionally verified before shipment to help ensure dependable operation.

What is the power rating of the Siemens 6SE3121-7DG40?

The Siemens 6SE3121-7DG40 has a rated output of 7.5 kW and is commonly associated with approximately 10 HP motor applications. Technical references list an output current of approximately 16.5 A at 400 V.

What input voltage does the Siemens 6SE3121-7DG40 support?

The Siemens 6SE3121-7DG40 is designed for a 3-phase 380–500 VAC input supply at 50/60 Hz.

What is the Siemens 6SE3121-7DG40 used for?

The Siemens 6SE3121-7DG40 SIMOVERT P MIDIMASTER AC Drive is used for variable-speed control of compatible industrial motors in manufacturing machinery, production equipment, machine tools, conveyors, material handling systems, industrial processing equipment, and other automation applications.

Can York Scientific repair the Siemens 6SE3121-7DG40?

Yes. York Scientific provides diagnostic, repair, refurbishment, and exchange services for the Siemens 6SE3121-7DG40. Experienced technicians perform component-level troubleshooting, electronic repairs, rebuilding, and functional testing for eligible units.

Request a Quote

Looking for the Siemens 6SE3121-7DG40 Refurbished SIMOVERT P MIDIMASTER 7.5 kW AC Drive? Contact York Scientific today for pricing, product availability, repair services, or exchange options. Our experienced team is ready to help you find a dependable Siemens replacement drive for your industrial automation, motor control, manufacturing, machine tool, and legacy MIDIMASTER system requirements.