ABB ACS355-03E-15A6-4 Machinery Drive 7.5 kW 15.6 A

ACS355-03E-15A6-4 in brief

At 7.5 kW the drive fits bigger fans, pumps and conveyors, and it is the largest type in this group that also has an IP66 variant. The ABB catalogue code is ACS355-03E-15A6-4: 3-phase, 380 to 480 V, 15.6 A, frame R3, 7.5 kW typical motor power.

Typical customers are OEMs, system integrators and panel builders in food and beverage, material handling, lifting, textile, printing, rubber and plastics, and woodworking. Application macros and panel assistants speed commissioning. See AC drives or the ABB ACS355 drive page for related ratings.

Technical specifications

Fuse, cooling and filter data for the ACS355-03E-15A6-4

The catalogue allows 1.5 times the nominal current, 23.4 A, for one minute in ten minutes at 40 degrees C ambient, and 1.8 times for 2 seconds at start. Output frequency reaches 599 Hz, and the default switching frequency of 4 kHz is selectable from 4 to 16 kHz in 4 kHz steps. Choose by motor current: this type is right when the nameplate current does not exceed 15.6 A.

Input protection is 35 A gG (IEC) or 35 A (UL Class T). The type produces 204 W of heat and moves 52 m3/h (31 ft3/min) of air. The listed accessories are CHK-04, NOCH-0016-6x and RFI-33. Use them where harmonics, cable length or EMC category require.

Decoding ACS355-03E-15A6-4

Decode the code as follows: ACS355 is the series, 03 means a 3-phase supply, E means the EMC filter is connected for 50 Hz, 15A6 is the rating field and 4 is the 380 to 480 V range. A U in place of the E means the filter is disconnected and 60 Hz parameters apply. Control panel options are J400 (ACS-CP-A assistant panel) and J404 (ACS-CP-C basic panel); choose one only.

For wall installation use the NEMA 1 form, which is 260 mm high (299 mm with the hood) and 169 mm wide, at 3.1 kg. The cabinet form weighs 2.5 kg and measures 169 x 169 x 169 mm. An IP66 / IP67 / UL Type 4X variant (+B063) is listed for this rating on frame R3.

Wiring and installation of the R3 frame

Fix the drive upright so that cooling air enters at the bottom and leaves at the top, and keep the clearances printed in the ABB hardware manual free of cable ducts and other equipment. Fit the 35 A input fuses listed above, size the supply and motor conductors to local regulations, and use a symmetrical shielded motor cable with the screen bonded at the drive end through the clamp plate. Keep control wiring away from motor cables and cross them at right angles where they must meet. If a brake resistor is used with the built-in chopper, choose its value and power from the ABB tables and mount it where its heat cannot reach the drive or nearby wiring. Wire the safe torque off inputs according to the safety design of the machine; if the function is not used, the manual explains how the terminals must be jumpered.

First start-up

With the motor disconnected from the machine where possible, enter the nameplate values, select the application macro that is closest to the duty, and set the acceleration and deceleration ramps. Check rotation direction at low speed, then test the start, stop and reference signals from the control system. If the network is IT or corner-grounded, follow ABB guidance on the EMC filter before energising. Save a copy of the parameters once the machine runs correctly.

Operating in hot, dusty GCC sites

The 204 W heat output has to leave the cabinet, and in Omani summers outdoor and roof-mounted panels can heat up well beyond the room temperature engineers expect. Size ventilation or cooling for the whole enclosure, check the ABB derating rules for ambient temperature and altitude, and shade panels from direct sun. Filters on inlet fans clog fast with fine sand, so make cleaning part of the weekly or monthly round in dusty areas. Where washdown, rain or heavy dust are expected, consider the IP66 variant already listed for this rating rather than an open IP20 unit in a weak enclosure. In humid coastal plants keep cabinets closed and, if the drive is switched off for long periods, guard against condensation before it is powered up again.

Preventive maintenance

Check the cooling fan of the drive and the panel fans for noise or reduced flow, and remove dust from the heat sink with dry, oil-free air. Inspect power and control terminals for discolouration or looseness. Review the fault and warning history: frequent overcurrent or overvoltage trips usually point to ramps that are too short, a mechanical problem or a brake circuit that needs attention. ABB publishes a maintenance schedule for fans and capacitors in the user manual; follow it and keep a record so replacements are planned rather than forced by a breakdown.

Source document and quotation

ABB document 3AUA0000068569 is the reference for every rating on this page and can be opened from the document link. Seven Star LLC supplies the ACS355-03E-15A6-4 to project and maintenance buyers on request, with availability and lead time stated in the quotation.

Check the type code, options, motor current and ambient conditions against your own documents before ordering.