Siemens 6SE9531-7DK40 Refurbished MIDIMASTER ECO AC Drive

The Siemens 6SE9531-7DK40, also identified as 6SE95317DK40, is a Siemens MIDIMASTER ECO AC drive designed for reliable variable-speed control of high-power three-phase AC motors used in industrial automation, manufacturing, material handling, pumping systems, and general industrial motor-control applications. This drive corresponds to the ECO1-9000/3 model and is rated for 90 kW (125 HP) motor power with a rated output current of 168 A at 400 V.

The MIDIMASTER ECO family provides frequency conversion and variable-speed motor control for demanding industrial applications. The 6SE9531-7DK40 supports a 3-phase 380–500 VAC ±10% input with an input frequency range of 47–63 Hz. This version is unfiltered and is designed for variable-torque applications where the drive provides controlled speed regulation for larger industrial motors.

The Siemens 6SE9531-7DK40 features an IP21 protection rating and is designed for an operating temperature range of 0°C to +40°C. Its substantial power rating makes it suitable for large pumps, fans, blowers, ventilation systems, water systems, material handling equipment, and other industrial machinery requiring dependable variable-speed control.

York Scientific supplies professionally refurbished Siemens 6SE9531-7DK40 drives that are thoroughly inspected, professionally cleaned, electrically evaluated, and quality tested before shipment. This refurbishment process provides a dependable replacement solution for obsolete, discontinued, or difficult-to-source Siemens industrial drive equipment while helping reduce replacement costs and minimize unexpected production downtime.

Siemens 6SE9531-7DK40
*Actual item may vary.

Siemens 6SE9531-7DK40

Manufacturer: Siemens
Product Description: Drive Midimaster Eco 125hp/90 Kw 168 Amp 380-500 Vac 47-63 Hertz Unfiltered 0 To +40 Degrees C Ip21
Part Number: 6SE9531-7DK40
Condition: Refurbished and Tested
Units in Stock: 6


Repair Price: $8652.11 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.

Industrial Applications

  • Large AC Motor Control
  • Variable-Speed Drive Systems
  • Industrial Pump Systems
  • Large Fan Applications
  • Blowers and Ventilation Systems
  • Water Treatment Equipment
  • Material Handling Systems
  • Industrial Conveyors
  • Manufacturing Equipment
  • Process Automation Systems
  • Factory Automation Systems
  • Industrial HVAC Systems
  • General-Purpose Variable-Torque Applications

Key Features

  • Manufacturer: Siemens
  • Part Number: 6SE9531-7DK40
  • Alternate Part Number: 6SE95317DK40
  • Product Family: MIDIMASTER ECO
  • Product Type: AC Drive / Frequency Converter
  • Model: ECO1-9000/3
  • Input Voltage: 3-Phase 380–500 VAC ±10%
  • Input Frequency: 47–63 Hz
  • Rated Motor Power: 90 kW / 125 HP
  • Rated Output Current: 168 A at 400 V
  • Three-Phase AC Output
  • Variable-Torque Operation
  • Unfiltered Drive Version
  • IP21 Protection Rating
  • Operating Temperature: 0°C to +40°C
  • Dimensions: 850 x 420 x 310 mm (H x W x D)
  • Weight: Approximately 60 kg
  • Large-Capacity Industrial Drive
  • Designed for High-Power Motor Applications
  • Professionally Refurbished and Fully Tested

Professional Refurbishment Process

Every refurbished Siemens 6SE9531-7DK40 undergoes a detailed inspection, professional cleaning, electrical evaluation, and comprehensive functional testing before shipment. Experienced technicians carefully examine the drive and its electronic components to help identify potential faults and ensure dependable performance in compatible industrial applications.

Purchasing a professionally refurbished Siemens MIDIMASTER ECO drive provides a practical and cost-effective alternative to sourcing new or discontinued equipment. The refurbishment process helps extend the service life of existing industrial motor-control systems while reducing maintenance expenses and helping minimize costly production interruptions.

Repair & Exchange Services

York Scientific provides professional repair and exchange services for the Siemens 6SE9531-7DK40 MIDIMASTER ECO AC Drive. Our experienced technicians perform complete diagnostics, component-level troubleshooting, electronic repairs, rebuilding, and comprehensive functional testing to help restore defective industrial drives to dependable operating condition.

Whether the drive is experiencing fault conditions, intermittent operation, power-related issues, or other performance problems, York Scientific can provide repair and replacement solutions designed to help minimize production downtime and maintain existing Siemens industrial automation equipment.

Why Choose York Scientific?

  • Professionally Refurbished Siemens Industrial Drives
  • Comprehensive Inspection and Functional Testing
  • Experienced Industrial Electronics Technicians
  • Reliable Replacement Products
  • Cost-Effective Alternative to New Equipment
  • Fast Worldwide Shipping
  • Repair, Exchange, and Technical Support
  • Large Inventory of Legacy Industrial Automation Components
  • Experience with Siemens MIDIMASTER Drive Systems
  • Responsive Customer Support

Worldwide Supply & Support

York Scientific supplies refurbished Siemens industrial automation and drive components to customers worldwide. Whether you need an emergency replacement for a failed high-power MIDIMASTER drive, a spare unit for preventive maintenance, or long-term support for an existing motor-control system, our team is committed to providing dependable products, responsive technical support, and fast worldwide shipping.

Frequently Asked Questions

What is the Siemens 6SE9531-7DK40 used for?

The Siemens 6SE9531-7DK40 is a MIDIMASTER ECO AC drive designed for variable-speed control of large three-phase AC motors in industrial pumps, fans, blowers, conveyors, material handling equipment, ventilation systems, and other variable-torque applications.

What are the electrical specifications of the Siemens 6SE9531-7DK40?

The drive supports a 3-phase 380–500 VAC ±10% input at 47–63 Hz and is rated for 90 kW (125 HP) motor power with a rated output current of 168 A at 400 V.

Is the Siemens 6SE9531-7DK40 filtered?

No. The Siemens 6SE9531-7DK40 is an unfiltered version of the MIDIMASTER ECO. Any required external EMC measures should be considered according to the specific installation and applicable system requirements.

What protection rating does the Siemens 6SE9531-7DK40 have?

The Siemens 6SE9531-7DK40 has an IP21 protection rating and is designed for an operating temperature range of 0°C to +40°C.

Can York Scientific repair the Siemens 6SE9531-7DK40?

Yes. York Scientific provides diagnostic evaluation, troubleshooting, component-level repair, rebuilding, exchange services, and functional testing for Siemens MIDIMASTER drives and related industrial automation equipment.

Request Pricing & Availability

Looking for a refurbished Siemens 6SE9531-7DK40 MIDIMASTER ECO AC Drive? Contact York Scientific today to request pricing, verify inventory availability, or learn more about our refurbishment, repair, and exchange services. Our experienced team is ready to help keep your industrial motor-control and automation systems operating efficiently while minimizing costly equipment downtime.