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ABB · ACS355 machinery drive
ACS355-03U-02A4-2 is an ABB variable-frequency drive with Overload capacity 150 % for 60 s (IEC 61800-2); Enclosure rating IP20 (IEC 60529); Frequency 50/60 Hz (IEC 61800-2). It is used in pump sets, conveyor belts, fan and compressor drives where the installed unit is matched to the original catalog number and a compact, documented part is required.
| Electrical | |
| Rated current Ie | 2.4 A |
|---|---|
| Supply voltage | 1-phase 200...240 V / 3-phase 380...480 V AC |
| Input voltage range | 200 ... 240 V |
| Frequency | 50/60 Hz (IEC 61800-2) |
| Control method | V/f, sensorless vector (IEC 61800-2) |
| Overload capacity | 150 % for 60 s (IEC 61800-2) |
| I/O and communication | |
| Bus interface | ABB FPBA-01 / FENA-21 / FECA-01 / FCAN-01 (adapter module) |
| Communication ports | Modbus, PROFINET, Ethernet |
| Mechanical | |
| Mounting | Wall / cabinet mount |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | -10...+60 °C (IEC 60068-2-1) |
| Certifications | CE, UL, CSA, CCC |
Values follow the ABB ACS355 machinery drive specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Lifecycle: discontinued by the manufacturer. Current-production replacement: ACS380. Cross-reference by function and ratings, not by label alone.
| ABB ACS355 machinery drive variants | |||
| Catalog number | Frequency | Overload capacity | |
|---|---|---|---|
| ACS355-03U-02A4-2 (this page) | 50/60 Hz (IEC 61800-2) | 150 % for 60 s (IEC 61800-2) | |
| ACS355-03U-02A4-4 | 50/60 Hz (IEC 61800-2) | 150 % for 60 s (IEC 61800-2) | |
| ACS355-03U-01A2-4 | 50/60 Hz | — | |
| ACS355-03U-01A9-4 | 50/60 Hz | — | |
All variants share the same ACS355 machinery drive footprint and terminal layout; the columns above show where they differ. Selecting a different catalog number changes the electrical interface, not the mounting.
The ACS355-03U-02A4-2 is the device-level element in an ABB variable-frequency drive installation. It receives the field signals and control supply listed above — 1-phase 200...240 V / 3-phase 380...480 V AC — and switches or conditions the load within the 2.4 A ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.
Typical installations place it in pump sets, conveyor belts, fan and compressor drives, where the unit is matched to the original catalog number and the enclosure provides Wall / cabinet mount support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Q.What supply does this device require?
It requires 1-phase 200...240 V / 3-phase 380...480 V AC. Size the supply source to the same rating shown in the Specifications table.
Q.What are the key electrical ratings?
The confirmed ratings include 2.4 A and CE, UL, CSA, CCC marking. Cross-check them against the installed unit's nameplate.
Q.How is this device mounted?
It mounts by Wall / cabinet mount. Confirm the cutout or rail before ordering a like-for-like spare.
Q.What is the operating temperature range?
The confirmed operating range is -10...+60 °C (IEC 60068-2-1). Panels running beyond it need derated sizing.
Q.Is this catalog number still in production, and what replaces it?
It is discontinued by the manufacturer; the current-production replacement is ACS380. Cross-reference by function and ratings, not by label alone.
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Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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