Allen-Bradley PowerFlex 700 / 700S: Replacement & Cross-Reference

The Allen-Bradley PowerFlex 700 (20B) and high-performance PowerFlex 700S (20D) are discontinued AC drives. The modern path is PowerFlex 753 for general use and PowerFlex 755 where the 700S's high-performance or position control is required. For a restart that keeps the installed platform, Edmundson Industrial sources new-surplus, used-tested, and reconditioned PowerFlex 700 / 700S drives and control/power boards.

Status

Brand	Allen-Bradley / Rockwell Automation
Family	PowerFlex 700 (20B), PowerFlex 700S (20D)
Lifecycle	Discontinued / end-of-life: verify current Rockwell status at quote
Configuration	HIM keypad · legacy DriveTools / DriveExecutive

Cross-Reference

If you have (obsolete)	Recommended path	Notes
PowerFlex 700 (20B-…)	PowerFlex 753	Rebuild parameters; confirm voltage, HP, enclosure, and comm option.
PowerFlex 700S (20D-…) high performance	PowerFlex 755	Closest match for vector / position control; plan the footprint change.
Control or power board failure	Surplus 700 / 700S boards (we source)	Board-level replacement keeps a drive running for less than a full swap.
Keep the machine running as-is	New-surplus / used-tested 700 / 700S (we source)	True drop-in. Match the full catalog string: voltage, HP, enclosure, comm.

Drive substitutions are application-specific. Confirm voltage class, horsepower, duty rating, enclosure, and communication option before ordering. Send the full catalog string and we'll verify the match.

Upgrading a 700 or 700S to a 753 / 755? The 750-series footprint differs from the 700. Our fabrication side supplies adapter plates, sub-panels, and modified enclosure cutouts so the new drive mounts where the old one came out: one PO, part and panel together.

Key Specs

General-purpose (700) and high-performance (700S) AC drives
200/240V, 400/480V, and 600V-class by catalog code
Vector and position control (700S); option-card slots for I/O and comms
HIM keypad; footprint differs from the PowerFlex 750-series
Catalog string (20B- / 20D-…) encodes voltage, current, enclosure, and options: quote from the full string

Is the PowerFlex 700 / 700S still made?

No. Rockwell has discontinued the PowerFlex 700 and 700S; the 750-series (753/755) are the successors. The 700 and 700S remain in operating plants, so surplus drives and boards can keep the installed platform in place while a retrofit is planned. Retrofit to a 753/755 at a planned stop; because the footprint changes, our fabrication side adapts the panel so the new drive mounts cleanly.

FAQ

Is the PowerFlex 700 / 700S discontinued?

Yes: both are discontinued. Replacement units are available through surplus channels like Edmundson Industrial.

What replaces a PowerFlex 700 or 700S?

PowerFlex 753 for general-purpose 700 applications; PowerFlex 755 for 700S high-performance or position control. Parameters are rebuilt and the footprint changes.

Can you supply just the control or power board?

Yes: we source 700 / 700S control and power boards. A board-level fix often restarts a drive faster and cheaper than a full replacement.

Can I buy a new PowerFlex 700?

New-surplus units still exist. We supply new-surplus, used-tested, and reconditioned 700 / 700S drives, a way to keep the installed platform in place while a retrofit is planned.

What do you need to quote one?

The full catalog string (the complete 20B / 20D… number) or a nameplate photo, acceptable condition, and your need-by date.

Availability & Quote

Condition disclosed before sale, new-surplus, used-tested, or reconditioned, with photos on request.

Request a Quote

or send the nameplate catalog string to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Response timing is confirmed with the request.

Related Allen-Bradley legacy pages

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