ABB 3BHB020720R0002 Replacement for ACS6000 Series

Product Overview

ABB 3BHB020720R0002 Replacement for ACS6000 Series: Seamless Transition from Legacy Drive Systems

The ABB 3BHB020720R0002 (also catalogued as 5SHY3545L0016) is a high-power press-pack IGCT (Integrated Gate-Commutated Thyristor) module engineered for medium-voltage variable-speed drive applications. It serves as the primary switching element in ABB ACS6000 series drives, which are widely deployed in oil & gas compressors, marine propulsion systems, mining hoists, and large-scale pump and fan installations. As ABB progressively phases out legacy ACS6000 drive components, plant engineers and procurement teams face increasing pressure to source verified replacement units that maintain full electrical and mechanical compatibility with existing control architectures.

TOPNLMS supplies the 3BHB020720R0002 as a direct drop-in replacement, sourced from certified ABB distribution channels and subject to pre-shipment functional verification. Each unit is tested for gate trigger response, forward voltage drop, and thermal impedance before dispatch, ensuring that the replacement module meets the original OEM specification without requiring modifications to the existing drive cabinet, cooling system, or control wiring.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful ACS6000 drive modernization extends well beyond swapping the IGCT module itself. During a typical retrofit, the engineering team must also evaluate the condition and compatibility of the surrounding power and control components. The ABB AGDR-71C gate driver unit, which interfaces directly with the 3BHB020720R0002 gate terminal, should be inspected and replaced if capacitor aging or fiber-optic connector degradation is detected. Similarly, the RDCO-02 DDCS communication adapter board — responsible for transmitting speed reference and torque commands between the AMC control board and the drive inverter section — is a common concurrent replacement item, particularly in drives that have been in continuous service for more than eight years.

On the power supply side, the APBU-44C pulse encoder interface unit and the AINT-02C inverter control board are frequently refreshed during the same maintenance window to eliminate latent failure risks. Engineers performing a full inverter stack overhaul will also assess the ABB 3BHB013088R0001 snubber capacitor assembly and the 3BHB009681R0001 DC bus capacitor bank, both of which are subject to electrolytic aging in high-ambient-temperature installations. Replacing these components alongside the 3BHB020720R0002 IGCT module ensures that the refurbished drive section meets the original thermal and electrical performance envelope.

For sites upgrading from an older ACS 1000 or ACS 5000 platform to the ACS6000 architecture, the migration scope typically includes new ABB NPBA-12 PROFIBUS adapter modules or NETA-21 remote monitoring units to align the drive’s communication interface with the plant’s existing DCS or SCADA network. Where the existing control cabinet uses a legacy ABB AC800M controller, the IGCT replacement project often coincides with a firmware update to the PM864A or PM866A processor module to support the revised drive parameter set. TOPNLMS maintains stock of these associated components and can consolidate shipment to reduce freight cost and customs clearance complexity.

Field engineers should also verify the integrity of the ABB 3BHB016120R0001 current transducer and the 3BHB013087R0001 voltage measurement board during the IGCT swap, as these signal-conditioning components directly influence the drive’s overcurrent protection and vector control accuracy. Replacing a degraded current transducer at the same time as the IGCT module eliminates a common root cause of nuisance trips following a power module replacement.

Retrofit Guidance FAQ

Q: Does replacing the 3BHB020720R0002 require re-parameterization of the ACS6000 drive?
A: No. The 3BHB020720R0002 is a direct electrical and mechanical replacement for earlier 5SHY series IGCT variants used in the ACS6000. The AMC control board does not require a parameter reset or firmware update solely due to the IGCT swap. However, if the gate driver unit (AGDR-71C) is also replaced, the gate delay calibration routine should be re-run per ABB Service Manual 3BHS135153.

Q: Is the press-pack clamp torque specification the same as the outgoing unit?
A: Yes. The 3BHB020720R0002 uses the same press-pack contact diameter and clamp force specification as the 5SHY3545L0014 and other 5SHY series predecessors. Refer to ABB Application Note 3BHS135154 for the recommended clamp torque values and contact surface preparation procedure.

Q: Can this IGCT be used in a drive operating on a 3.3 kV or 6.6 kV medium-voltage bus?
A: The 3BHB020720R0002 is rated for 4500 V VDRM, making it suitable for 3.3 kV bus applications with standard derating. For 6.6 kV bus installations, the ACS6000 typically uses a series-connected IGCT stack; consult the original drive configuration documentation to confirm the number of series devices and the per-device voltage sharing requirement before ordering.

Q: What communication protocols does the ACS6000 support after this replacement?
A: The ACS6000 drive communicates via ABB’s proprietary DDCS fiber-optic protocol natively. With the NPBA-12 or NETA-21 adapter, it also supports PROFIBUS-DP, Modbus RTU, and Ethernet/IP, enabling integration with Siemens S7, Rockwell ControlLogix, or Honeywell Experion DCS platforms without changes to the IGCT module.

Q: How much physical space is required for the replacement procedure?
A: The 3BHB020720R0002 occupies the same press-pack envelope as the outgoing unit. No cabinet re-engineering or busbar modification is required. The replacement can typically be completed within a planned 4–8 hour maintenance window, depending on the number of IGCT positions in the inverter stack and the condition of the cooling circuit connections.

Q: What wiring changes are needed?
A: None. The gate unit connector, anode/cathode press contacts, and fiber-optic gate signal interface are identical to the outgoing 5SHY series unit. Existing wiring harnesses and fiber-optic cables can be reused provided they pass visual inspection and continuity testing.

Warranty Assurance

Every ABB 3BHB020720R0002 / 5SHY3545L0016 unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each module undergoes a documented pre-shipment inspection that includes visual examination of the press-pack contact surfaces, gate terminal integrity check, and packaging verification to prevent transit damage to the ceramic press-pack housing.

In the event of a confirmed warranty claim, TOPNLMS will arrange priority replacement shipment from Xiamen within 3 business days of fault confirmation. Our technical support team is available to assist with installation verification, gate driver compatibility questions, and post-installation commissioning guidance. Replacement units are shipped with full traceability documentation, including batch records and inspection reports, to support your plant’s maintenance management system requirements.

For volume procurement, blanket order arrangements, and consignment stock programs, please contact our sales team directly. TOPNLMS maintains buffer stock of the 3BHB020720R0002 and associated ACS6000 drive components to support emergency breakdown orders with same-day quotation and expedited air freight dispatch.