ABB ACS880-01-077A-5 ACS880-01 37 kW Frame R5 AC Drive

ABB ACS880-01-077A-5: 77 A wall-mounted ACS880 drive

ABB ACS880-01-077A-5 sits in the ACS880-01 range of wall-mounted industrial drives. ABB lists it with 77 A nominal current and 37 kW typical motor power at 400 V; the frame size is R5 and the supply range is 380 to 500 V.

Typical uses in oil, gas, water and fabrication plants include centrifugal pumps, extruders, hoists and test benches. The drive ships as IP21 (UL Type 1) unless a plus code selects another construction.

Technical specifications

Protection, cabling and thermal data

Plan a footprint of 203 x 732 mm with 274 mm depth and a mass of 22.8 kg. The manual asks for 200 mm clear above and 300 mm below, and quotes 916 W typical loss with 280 m3/h of air and 64 dB(A).

Fusing options are 100 A gG (OFAF000H100), 160 A aR (170M1569) or UL class T JJS-110. The IEC copper cable entry is 3×35 mm2 and the UL conductor is 3 AWG-kcmil. This frame has no brake chopper as standard; ABB lists the +D150 brake chopper as a factory option.

A 300 m motor cable is the manual’s recommendation for frame R5. Efficiency is about 98% at nominal power.

A 37 kW label does not decide sizing alone. ABB separates nominal (77 A), light-duty (73 A) and heavy-duty (65 A) operation, so compare the load cycle and required overload with those columns before settling on this size.

On a 500 V network, expect 77 A and 45 kW nominal; at 480 V the UL table shows 60 hp (light duty) and 50 hp (heavy duty).

Reading the ACS880-01-077A-5 order code

Options are written as plus codes after the type. ABB lists +B056 (IP55), +C135 (flange mounting), +C132 (marine type approval), +D150 (brake chopper), +E200/+E201/+E202 (EMC filters) and +N5700 among others; not every code exists for every size.

When specifying the ACS880-01-077A-5, compare the drive rating with the motor nameplate rather than with kilowatts alone. Check the rated motor current, the duty cycle and the ambient temperature at the site, and then confirm that the supply voltage and fault level match this size. A drive with the right current but a mismatched network or cable length can need extra filters, so send the full application details with your enquiry.

Mounting the R5 frame on site

At 22.8 kg in IP21 form, the ACS880-01-077A-5 can be wall-mounted by two people, but the supporting surface still needs to be solid and vertical. Respect the 200 mm space above and 300 mm below the drive so the 280 m3/h airflow is not restricted, and do not mount drives one directly above another unless the warm air from the lower unit is guided away. Where a panel builder wants the heatsink outside the cabinet, the +C135 flange mounting option listed above should be specified at the ordering stage.

Bring the 3×35 mm2 supply cable and the motor cable in through separate routes, keep control cables apart from both, and make the protective earth connections with the cross-sections and methods given in the ABB hardware manual.

First start-up of the 37 kW drive

After a final check of fuses, terminal torques and the absence of tools or debris inside the drive, switch on the supply with the motor uncoupled where the process allows. Use the ACS-AP-W panel to enter the motor nameplate values and the application macro or control source the system needs, then run identification so the control program learns the motor characteristics.

Couple the load and test start, stop, speed reference and direction. Prove the Safe torque off function before handover, and confirm that limits for current, speed and ramp times protect the driven pump, extruder or hoist. Store the parameter backup with the commissioning record.

Summer derating and dust in Omani installations

Because full current is only available below the derating threshold stated in the hardware manual, a drive installed in a hot pump house or a container substation in Oman should be checked against the highest expected inlet-air temperature, not the yearly average. If the room cannot be kept cool enough, choose a larger size or improve ventilation instead of accepting frequent overtemperature trips.

The coated boards supplied as standard improve resistance to humidity, yet sand and fine dust still clog the cooling path of an IP21 drive. On dusty desert sites the IP55 +B056 construction, a sealed cooled panel or a clean electrical room are the usual routes to reliable operation.

Keeping the drive in good condition

Include the drive in the site preventive maintenance plan. With the supply isolated and the waiting time from the manual observed, remove dust from the heatsink and air openings, check cable terminations for heat marks, and confirm that enclosure seals are intact. Read the event log after each inspection; repeated warnings about temperature or supply quality are an early sign that conditions around the drive need attention.

Documents and quotation

Technical values are taken from ABB’s published ACS880-01 documents. Related reading: the AC Drives category and our ACS880-01 page.

To avoid a wrong match, send the full type code with plus codes, quantity, motor data and enclosure needs. Seven Star LLC, an independent Muscat supplier, replies with availability and lead time.