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Home / Alternatives / ABB ACS550 → ACS580
REPLACEMENT GUIDES · 01

ABB ACS550 to ACS580: official migration path
and model cross-reference

For many ABB ACS550 general-purpose drive applications, ACS580 is ABB's intended migration platform — but it should never be selected by HP or kW rating alone. This guide walks through ABB's official model mappings, option/fieldbus changes and the checks worth confirming before you order.

ElecBridge team inspecting low-voltage panels - ElecBridge
Quick Answer

For many ABB ACS550 general-purpose drive applications, ACS580 is the migration path ABB itself points to. But an ACS580 should never be selected only by matching the old drive's HP or kW rating. Before ordering, verify: the exact ACS550 type designation, motor power and rated current, supply voltage and duty requirement, enclosure/protection class, existing option modules and fieldbus, mechanical dimensions and mounting, and control wiring / parameter settings. ACS580 is a migration path for many ACS550 applications — not an automatic drop-in replacement.

ABB'S APPROACH · TWO STAGES

How ABB structures the ACS550 → ACS580 migration

ABB's ACS550-to-ACS580 comparison guide organizes the work into two practical stages:

MODEL CROSS-REFERENCE · 380–480 V

Official model mapping — 380–480 V

ACS550ACS550 currentACS580ACS580 currentTypical power
ACS550-U1-03A3-43.3 AACS580-01-03A0-43.0 A1.5 HP
ACS550-U1-04A1-44.1 AACS580-01-03A5-43.5 A2 HP
ACS550-U1-06A9-46.9 AACS580-01-04A8-44.8 A3 HP
ACS550-U1-08A8-48.8 AACS580-01-07A6-47.6 A5 HP
ACS550-U1-012A-411.9 AACS580-01-012A-412 A7.5 HP
ACS550-U1-015A-415.4 AACS580-01-014A-414 A10 HP
ACS550-U1-023A-423 AACS580-01-023A-423 A15 HP
ACS550-U1-031A-431 AACS580-01-027A-427 A20 HP
ACS550-U1-038A-438 AACS580-01-034A-434 A25 HP
ACS550-U1-045A-444 AACS580-01-044A-444 A30 HP
ACS550-U1-059A-459 AACS580-01-052A-452 A40 HP
ACS550-U1-072A-472 AACS580-01-065A-465 A50 HP
ACS550-U1-078A-477 AACS580-01-077A-477 A60 HP
ACS550-U1-097A-496 AACS580-01-096A-496 A75 HP
ACS550-U1-125A-4124 AACS580-01-124A-4124 A100 HP
ACS550-U1-157A-4157 AACS580-01-156A-4156 A125 HP
ACS550-U1-180A-4180 AACS580-01-180A-4180 A150 HP
ACS550-U1-246A-4245 AACS580-01-240A-4240 A200 HP

Selection warning

These are ABB comparison-guide mappings. Do not use this table as a universal one-to-one interchangeability statement. Final sizing still depends on motor current, voltage, duty, options and application.

MODEL CROSS-REFERENCE · 200–240 V

Official model mapping — 200–240 V

ACS550ACS580
ACS550-U1-04A6-2ACS580-01-04A6-2
ACS550-U1-06A6-2ACS580-01-06A6-2
ACS550-U1-07A5-2ACS580-01-07A5-2
ACS550-U1-012A-2ACS580-01-10A6-2
ACS550-U1-017A-2ACS580-01-017A-2
ACS550-U1-024A-2ACS580-01-024A-2
ACS550-U1-031A-2ACS580-01-031A-2
ACS550-U1-046A-2ACS580-01-046A-2
ACS550-U1-059A-2ACS580-01-059A-2
ACS550-U1-075A-2ACS580-01-075A-2
ACS550-U1-088A-2ACS580-01-090A-2
ACS550-U1-114A-2ACS580-01-114A-2
ACS550-U1-143A-2ACS580-01-143A-2
ACS550-U1-178A-2ACS580-01-169A-2
ACS550-U1-221A-2ACS580-01-211A-2
ACS550-U1-248A-2ACS580-01-273A-2

Single-phase supply

ABB states that the ACS550 208–240 V single-phase 50% output-current derating rule should not simply be applied to ACS580. Use the ACS580 single-phase selection ratings instead.

MODEL CROSS-REFERENCE · 500–600 V

Official model mapping — 500–600 V

ACS550ACS580
ACS550-U1-02A7-6ACS580-01-02A7-6
ACS550-U1-03A9-6ACS580-01-03A9-6
ACS550-U1-06A1-6ACS580-01-06A1-6
ACS550-U1-09A0-6ACS580-01-09A0-6
ACS550-U1-011A-6ACS580-01-011A-6
ACS550-U1-017A-6ACS580-01-017A-6
ACS550-U1-022A-6ACS580-01-022A-6
ACS550-U1-027A-6ACS580-01-027A-6
ACS550-U1-032A-6ACS580-01-032A-6
ACS550-U1-041A-6ACS580-01-041A-6
ACS550-U1-052A-6ACS580-01-052A-6
ACS550-U1-062A-6ACS580-01-062A-6
ACS550-U1-077A-6ACS580-01-077A-6
ACS550-U1-099A-6ACS580-01-099A-6
ACS550-U1-125A-6ACS580-01-125A-6
ACS550-U1-144A-6ACS580-01-144A-6
OPTIONS & FIELDBUS

Option and fieldbus mapping

ACS550 optionFunctionACS580 option
B055UL/NEMA Type 12 / IP54B056 — UL/NEMA Type 12 / IP55
RCNA-01ControlNetFCNA-01-KIT
RDNA-01DeviceNetFDNA-01-KIT
RETA-01EtherNet/IPFENA-21-KIT
RPBA-01PROFIBUS DPFPBA-01
OHDI-01115/230 V digital inputCHDI-01

Do not assume an ACS550 option module can be physically transferred to ACS580. Confirm both hardware and communication compatibility before ordering.

Encoder applications — an important exception

If the existing ACS550 uses an encoder module, ABB's comparison guide directs the application to ACS880 because ACS580 does not provide an encoder card.

RISKS · CONFIRM BEFORE SWITCHING

Migration checks worth confirming first

Common risk points in an ACS550 → ACS580 migration

Keep the ACS550, or migrate to ACS580?

The original ACS550 may make sense when production must restart immediately and exact stock is available, wiring/PLC changes are undesirable, a validated legacy configuration must be preserved, or a short-term spare strategy is the priority. ACS580 migration may make sense when the equipment will remain in service long term, future lifecycle and spare support matter, control-system modifications are acceptable, or multiple ACS550 units are being standardized/modernized together.

HOW WE HELP

What ElecBridge checks for you

For an ACS550 request, we can separately check: original ACS550 China-side availability; ABB's official migration path and the candidate ACS580 / ACS880 platform; migration risks across current, dimensions, fieldbus, options, wiring and application; and — where ABB compliance isn't mandatory and the application supports it — an alternative-brand option.

What to send us

Full ACS550 type code / nameplate photo · motor nameplate photo · input voltage, motor current and application · existing fieldbus and option codes · cabinet and wiring photos · quantity and destination country · if available: electrical drawing, parameter backup and PLC model.

SOURCES

Manufacturer references

ABB — ACS550 to ACS580 Comparison Guide, Document 3AXD50000660681, ABB Library · ABB — ACS550 Legacy Drives, manufacturer lifecycle page, abb.com · ABB — ACS580 General Purpose Drives, manufacturer product page, abb.com. This page summarizes ABB's published migration guidance for sourcing purposes; it is not a reproduction of ABB's documentation.

Technical disclaimer: ElecBridge is an independent sourcing service and is not ABB. This page summarizes ABB's migration information for practical sourcing use and must not be presented as ABB engineering approval. Final drive selection, power-module sizing, wiring, fieldbus integration, parameterization and commissioning must be verified for the actual motor, machine and control system.

— GET STARTED

Send your ACS550 model / nameplate for a migration check

Tell us the ACS550 type code and application — within 48 hours you get an honest migration judgment. If ACS580 fits, we say so; if ACS880 or another route is safer, we say that too.

Send your ACS550 details for a check →
WhatsApp:+86 189 9841 9159 · [email protected]
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FAQ

ACS550 to ACS580 frequently asked

Q.01
Is ACS580 a direct replacement for ACS550?
Not automatically. Use the ABB mapping as a starting point, then verify motor current, voltage, duty, options, fieldbus, dimensions and application. ACS580 is ABB's migration platform for many ACS550 applications — it is not an automatic drop-in replacement.
Q.02
What replaces ABB ACS550-U1-012A-4?
ABB's comparison table pairs ACS550-U1-012A-4 with ACS580-01-012A-4 in the 380–480 V range, subject to final sizing against your actual motor and application.
Q.03
What replaces ABB ACS550-U1-031A-4?
ABB compares ACS550-U1-031A-4 with ACS580-01-027A-4 at the 20 HP level — but the listed currents differ (31 A vs 27 A), so do not select by HP alone. Confirm your motor's actual rated current against the ACS580 figure.
Q.04
What replaces ABB ACS550-U1-246A-4?
ABB's comparison guide pairs ACS550-U1-246A-4 with ACS580-01-240A-4 at the 200 HP level.
Q.05
Can ACS580 replace an ACS550 with encoder feedback?
Generally no. ABB directs encoder applications to ACS880 because ACS580 does not offer an encoder card. If your ACS550 uses an encoder module, treat ACS880 as the migration platform instead.
Q.06
Can I reuse my ACS550 fieldbus module?
Do not assume so. ABB provides new-generation option mappings for ACS580 — for example RPBA-01 (PROFIBUS DP) maps to FPBA-01, and RETA-01 (EtherNet/IP) maps to FENA-21-KIT. Confirm both hardware and communication compatibility before ordering.
Q.07
Will ACS580 fit in the same cabinet?
Sometimes, but not guaranteed. Frame size, mounting holes, clearance and cable-entry arrangements can differ between ACS550 and ACS580 even at a matching current rating — compare dimensions before assuming a like-for-like fit.
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