Designed in accordance with ABB medium-voltage drive specifications, each unit undergoes a full series of factory tests including withstand voltage, temperature rise and overload ageing. Primarily supplied as spare parts for existing ACS6000 installations, the module features a pluggable standalone design that allows individual replacement without dismantling the entire power cabinet.

Model Code Interpretation
S-053M
- S: Category code for Phase Power Module
- 053: Corresponding to rated power capacity of 5MVA
- M: Standard water-cooled base version, differentiated from H-type high-power reinforced variant
Product Features
Electrical Ratings: Compatible with 3300V DC bus voltage, matching ACS6000 cabinets with 1725V/3300V grid input. Capable of sustaining 150% rated overload for 60 seconds; instantaneous short-circuit protection activates within less than 2 microseconds at 200% overload.
Cooling Method: Integrated built-in water cooling channels. Allowable inlet water temperature ranges from 5℃ to 45℃. Standard quick-disconnect waterproof joints for connection to closed-loop circulating water cooling units.
Signal Transmission: Fiber-optic pulse drive interfaces eliminate electrical coupling interference. Multiple built-in NTC temperature sensors monitor semiconductor junction temperature in real time.
Mechanical Specifications: Net weight approx. 190kg. Pull-out rail-mounted installation with cabinet safety interlock switch; power supply is disabled if the module is not fully seated.
Protection Performance: Internal circuit boards coated with three-proof coating. Insulation structure complies with medium-voltage safety clearance requirements. Single module protection class IP20; the complete unit assembled in cabinet reaches IP42/IP54.
Monitoring Function: Front-mounted status indicator lights provide real-time feedback of four signal states: running, fault, abnormal water cooling and fiber-optic disconnection. Detailed fault codes can be uploaded to the main control system.
Compliance Standards: Certified to IEC61800-4 medium-voltage drive standard, SIL2 functional safety and IEEE519 harmonic limits, meeting acceptance specifications for heavy industrial projects at home and abroad.

Application Industries
Power Industry
Medium-voltage drive for large induced draft fans, primary air fans and circulating water pumps in thermal power and hydropower plants; spare parts for frequency conversion renovation of auxiliary power plant equipment.
Metallurgical Industry
High-power drive systems for hot rolling / cold rolling main rolling mills, main sinter exhaust fans and blast furnace blowers.
Mining Industry
ACS6000 frequency conversion equipment for mine main hoists, long-distance belt conveyors, ball mills and semi-autogenous mills.
Cement & Building Materials Industry
High-voltage speed regulation devices for kiln exhaust fans, raw material vertical mills and large cement clinker fans.
Oil & Gas Industry
Medium-voltage variable frequency drives for large compressors, oil-gas mixed transportation pumps and water injection units.
Chemical Industry
Drives for large reactor stirring motors, process compressors and circulating cooling water pumps.
Ship & Offshore Engineering
Medium-voltage drive systems for main ship propulsion and ballast pumps (custom marine versions of ACS6000).
Water Treatment Industry
High-voltage water supply pump units for large municipal sewage treatment and seawater desalination projects.

Product Comparison
Comparison 1: S-053H (Part No. 3BHB012897R0003) Heavy-Duty Reinforced Phase Module
Similarities
Differences
Comparison 2: S-073M High-Power 7MVA Phase Module
Similarities
Differences
Comparison 3: Standalone Power Units of ACS1000 Series
Similarities
Differences
Supporting Products
ACS6000 INU-05 Inverter Cabinet (standard mounting carrier for modules)
WCU Water Cooling Unit: closed-circuit circulating cooling set equipped with deionized water filter cartridges
CBU DC Bus Capacitor Cabinet, including pre-charge & discharge switches and earthing protection devices
COU Control Cabinet: AMC main control boards and fiber-optic drive transceiver cards
LSU Diode Input Rectifier Unit / ARU Active Rectifier Unit
VLU Voltage Limiting Protection Unit and RC snubber absorption kits
Original dedicated lifting tools, insulated earthing kits and water cooling sealing gaskets
AF100/Profibus communication adapters and CDP312 drive operation control panels
FAQ
Q1: Are there alternative part numbers for module 3BHB012897R0007?Can modules of different revisions be directly replaced?
A1: Modules of the same model with different revision batches (R0003/R0007) feature fully consistent mechanical and electrical parameters and are directly interchangeable. Only model S-053H can serve as an alternative for impact loads. Other S-series modules with different power ratings are incompatible and must not be mixed.
Q2: What is the standard troubleshooting sequence for module overtemperature alarms?
A2:Check the inlet water flow of the water cooling system and whether the filter is clogged.
Verify wiring of fiber-optic cables connected to NTC temperature sensors.
Measure busbar load current to confirm long-term overrated operation.
Disassemble the module and inspect cooling channels for limescale blockages.
Q3: Does the entire phase module need to be replaced when a fiber-optic communication fault alarm occurs?
A3: Replace fiber-optic cables and clean fiber end faces first, and check for faulty main control transceiver cards. Complete phase module replacement is only required if the fiber interface base is cracked or the internal drive circuit is damaged.
Q4: What is the maximum number of S-053M modules that can be paralleled in one ACS6000 inverter cabinet for capacity expansion?
A4: A standard INU-05 cabinet adopts one module per single branch. Two S-053M modules can be installed in dual parallel branches to expand the unit output capacity up to 10MVA. Modules of the same model and batch must be matched for parallel connection.
Q5: What are the environmental storage requirements for the module? How to protect spare parts for long-term warehousing?
A5: Storage ambient temperature: 0℃ ~ 35℃; relative humidity below 70% without condensation.
For stock stored over 6 months, perform regular no-load power-on and water cooling circulation. Seal circuit boards with moisture-proof packaging to prevent oxidation of metal terminals.
Same Brand Model Recommendations
S-053M 3BHB012897R0007: 5MVA Standard Water-Cooled Phase Module
S-053H 3BHB012897R0003: 5MVA Heavy-Duty Reinforced Phase Module
S-073M 3BHB009884R0204: 7MVA Standard Phase Module
S-093M 3BHB009884R0206: 9MVA Water-Cooled Phase Module
S-113M 3BHB009884R0208: 11MVA High-Power Phase Module










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