ACS550-01-012A-4+B055 drive: supply conditions, enclosure and motor matching
The complete code identifies an ACS550 wall-mounted drive with a B055 enclosure option. The ABB product record associates this code with an 11.9 A, 380 V, IP54 variant. The rating is useful for identification, but it does not by itself confirm suitability for every motor or enclosure environment. Confirm the nameplate before ordering or replacing a unit.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Order code | 3AUA0000004230 |
| Type designation | ACS550-01-012A-4+B055 |
| Supply class | 380 V three-phase product variant; confirm site voltage and frequency |
| Rated output current | 11.9 A for the listed 012A-4 version |
| Enclosure option | B055 / IP54 product version; verify installed label and regional rating |
| Drive family | ABB ACS550 general-purpose low-voltage AC drive |
| Motor duty | Use the current rating and load-duty table for the exact supply and overload profile |
| Configuration | Check options, firmware, terminals and control interface from the nameplate and manual |
The values above are intended to identify the listed version and support an initial technical review. Confirm applicable standards, rating conditions, installed accessories and the current ABB documentation for the serial number or revision before design approval, replacement or commissioning.
Application and engineering focus
Use the drive where variable-speed control is required and the motor, process and electrical installation fall within the ACS550 design limits. Start with motor nameplate current, supply phase and voltage, acceleration demand, load inertia, duty cycle and required speed range. A 012A current code should not be translated into a motor power rating without checking the ABB rating table for the selected duty and supply.
Configuration, compatibility and related references
Check whether the installation needs a particular EMC filter, fieldbus option, braking arrangement, bypass contactor or enclosure rating. The B055 designation is tied to the IP54 product version, while surrounding accessories and cabinet design still affect protection, heat dissipation and service access. Confirm the permitted ambient temperature, altitude and derating from the product manual. Related ACS550 current and voltage variants are references only; do not infer interchangeability from the family name.
The related designations below are comparison references, not automatic substitutes. Confirm the complete type code, order number, interface, ratings and revision against the approved application before selecting an alternative.
- ACS550-01-012A-4
- ACS550-01-015A-4
- ACS550-01-023A-4
- ACS550-01-031A-4
- ACS550-01-038A-4
- ACS550-01-038A-4+BO55
- ACS550-01-038A4+J400
- ACS550-01-03A3-4
- ACS550-01-044A-4
- ACS550-01-045A-4
- ACS550-01-045A-4+B055
- ACS550-01-04A1-4
- ACS550-01-04А1-4
- ACS550-01-059-4
- ACS550-01-059A
- ACS550-01-059A-4
- ACS550-01-059A-4+B055
- ACS550-01-059A-4+B055+K454
- ACS550-01-05A4-4
- ACS550-01-06A9-4
- ACS550-01-06A9-4+B055
- ACS550-01-072A-4
- ACS550-01-087A
- ACS550-01-087A-4
- ACS550-01-08A8-4
- ACS550-01-125A-4
- ACS550-01-125A-4+B055
- ACS550-01-157A-4
- ACS550-01-180A-4
- ACS550-01-195A-4
- ACS550-01-290A-4+В055
- ACS550-01-59-4
- ACS550-01-87A-4
Installation and commissioning checks
Before commissioning, verify protective earth, line and motor terminals, cable separation, upstream protection and enclosure ventilation. Follow the drive-specific isolation and DC-link discharge instructions. Enter the motor nameplate data, set limits and ramps, then test direction, stop behavior and command/reference sources at controlled conditions. Record parameter backups before a replacement and confirm that the new drive’s option set supports the existing control scheme.
During commissioning, verify the nameplate, configuration, wiring and diagnostics before enabling normal operation. Test the relevant signal path or protection response end to end under controlled conditions. Record settings and as-left measurements, and investigate abnormal values at the sensor, load, wiring or system configuration before replacing components.
Ordering, replacement and application information
For a quotation or replacement review, provide the complete designation 3AUA0000004230 ACS550-01-012A-4+B055, ABB order code where available, serial or hardware revision, quantity, installation environment, connected equipment, interface requirements and target delivery date. Include a clear rating-label photograph and relevant wiring, loop or panel drawing when possible.
Ask the supplier to confirm the exact configuration, accessories, revision and any approved successor in writing. Do not select solely from a family name or product photograph. For safety, grid-protection, medium-voltage or regulated applications, obtain review by the responsible qualified engineer and follow local codes and the manufacturer’s instructions.
