AC variable frequency drives, DC drives, and soft starters: current production lines and discontinued models. Edmundson Industrial supplies active VFD product lines and sources obsolete and legacy drives that standard distributors no longer carry. If the part number shows discontinued, send it to us.
Variable frequency drives have one of the shorter replacement cycles in industrial electrical, manufacturers discontinue product lines frequently, and a drive that was current production five years ago may be obsolete today. When a drive fails and the replacement part number no longer exists, standard distributors have nothing to offer.
Edmundson Industrial supplies current VFD lines from ABB, Allen-Bradley, Siemens, and Eaton through active distribution channels. For discontinued and legacy drives (older Allen-Bradley 1336, ABB ACS600, Magnetek GPD series, Reliance Electric FlexPak, and others) we source through surplus, new-old-stock, and reconditioned inventory.
For facilities that need a straight replacement for an existing drive installation, we can also supply compatible modern drive equivalents when the original model is no longer available, matched to the motor HP, voltage, and application requirements.
Drive applications vary by motor type, load profile, and application requirements. These are the drive categories we handle most frequently.
The most common drive type in industrial applications. LV VFDs for 208V, 240V, 480V, and 600V systems driving standard NEMA and IEC induction motors.
Regenerative and non-regenerative DC drives for applications with existing DC motors where replacing the drive (not the motor) is the most cost-effective path.
MV drives for 2300V, 4160V, 6600V, and higher voltage motor applications. Used in large pumps, compressors, fans, and industrial processes where motor HP makes low voltage impractical.
Soft starters for applications where speed control isn't required but current-limited motor starting is, pumps, compressors, conveyors, and large centrifugal loads.
Input and output components required for proper drive installation, line reactors, EMC/RFI filters, braking resistors and choppers, bypass contactors, and drive isolation transformers.
Drives configured for crane and hoist applications, including flux vector drives with encoder feedback and drives with the specific torque performance needed for vertical load holding.
Drive manufacturers have historically discontinued product lines on 5–10 year cycles. A drive that was current production when a facility was built may already be obsolete, and when it fails, a straight replacement is no longer available from standard distributors.
Edmundson Industrial sources discontinued and legacy drives through surplus, new-old-stock, and reconditioned inventory. For drives where no sourced replacement is available, we can often match the application with a current-production equivalent, same HP, voltage, and control interface, in a modern package that still communicates with the existing system.
The following data helps us confirm the exact drive and check availability fastest. Nameplate data and photos are often sufficient to start.
If you need a compatible modern replacement rather than the exact discontinued model, tell us the application, we can match HP, voltage, control interface, and fieldbus protocol to a current production drive.
Submit a Drive RequestABB ACS880, ACS580, ACS310 current lines. Legacy ACS600 and ACS550 sourced through surplus. DC drives including DCS880 and legacy series. One of the widest-installed VFD brands in global industrial facilities.
PowerFlex 4, 40, 400, 523, 525, 753, 755 current series. Legacy 1336 PLUS, 1336 PLUS II, 1305, 1336 IMPACT series sourced. DC drives including 1394. Bulletins 20A, 20B, 20F, and 20G product lines.
Sinamics G120, G130, S120 current lines. Legacy Micromaster 420/440 sourced. Robicon Perfect Harmony MV drives for industrial and oilfield applications. Simoreg DC drives, current and legacy.
Eaton SVX9000, DG1 series current lines. Legacy Cutler-Hammer drive product lines sourced. Magnetek Impulse and GPD series, acquired by Curtiss-Wright, sourced through specialty inventory.
Reliance FlexPak, AutoMax, SP500, and SP600 DC and AC drive series. Portions of the Reliance line were acquired by Rockwell Automation; legacy Reliance drives sourced through surplus inventory.
Magnetek GPD 503/505/515 and IMPULSE series; Yaskawa G5/G7 and older P series; GE AF-300 drives. All sourced through surplus and new-old-stock channels as available.
For current-production drives, the catalog number is the fastest path to a quote. For legacy drives, the catalog number plus nameplate data (HP, voltage, input phases) helps us confirm the exact unit and check availability.
If the original drive is discontinued, tell us whether you need the exact unit (for spare parts inventory or a parallel installation) or a compatible modern replacement (for a facility that wants to upgrade the drive technology while keeping the existing motor).
We respond with availability, condition (new, surplus, reconditioned), lead time, and (for discontinued drives) any compatible modern replacement options alongside the sourced original.
In-stock drives ship from Houston. Sourced units ship when received. Large drive packages (MV drives, drive panels) can be quoted with freight and crating included.
Use the RFQ form or email directly. Include nameplate data for best response speed.