Brief Product Description

S‑123H, part number 3BHB030479R0112, is a heavy‑duty phase power module designed for ABB ACS6000 medium‑voltage variable‑frequency drive systems. Built with IGCT power semiconductors, integrated gate drivers and liquid cooling assemblies, this pull‑out modular unit undertakes high‑power AC‑DC‑AC energy conversion for large‑capacity motors. Equipped with built‑in temperature sensors, current‑voltage monitoring circuits and fast water‑cooling connectors, it delivers stable power conversion under heavy‑load industrial operating conditions. Its drawer‑type mechanical structure simplifies on‑site replacement and maintenance. As an end‑of‑life power component, it is widely supplied as fully‑tested surplus and refurbished spare units for maintenance and retrofit of existing ABB medium‑voltage drive installations.

Core Product Functions

• High‑power energy conversion for ACS6000 medium‑voltage drives to realize motor speed and torque regulation
• Integrated IGCT power devices and gate drive units to execute rectification and inversion power conversion
• Real‑time monitoring of internal temperature, current and voltage for power semiconductor protection
• Liquid cooling interface with quick‑connect fittings for efficient heat dissipation under continuous heavy‑duty load
• Drawer‑in modular mechanical design for convenient installation, removal and on‑site maintenance work
• Transmit operating status and fault diagnostic data to the main drive control unit via internal signal interfaces
• Built‑in over‑current, over‑voltage and over‑temperature protection to avoid power device burnout during abnormal conditions
• Low‑harmonic power conversion performance to meet grid power quality requirements for heavy‑industry sites

• Support multi‑module parallel combination to match different power rating requirements of medium‑voltage drive systems

Application Scenarios

• ABB ACS6000 medium‑voltage drive cabinets for metallurgy, mining and mineral processing plants
• Large‑power fan, pump and compressor variable‑speed control systems in petrochemical and chemical industries
• Cement plant high‑power medium‑voltage motor drive and energy‑saving control installations
• Power plant auxiliary large motor speed‑regulation systems for water supply and ventilation equipment
• Oil & gas processing facilities requiring high‑reliability medium‑voltage variable‑frequency drives

• Spare replacement phase module for maintenance, troubleshooting and upgrade of legacy ABB ACS6000 drive racks

FAQ (Frequently Asked Questions)

• Q: Drive reports over‑temperature or power unit fault alarm?
  A: Check liquid cooling pipeline blockage or leakage, cooling water flow shortage, temperature sensor failure, poor contact or power semiconductor aging.
• Q: Drive trips frequently with over‑current alarms during motor running?
  A: Inspect phase module internal device damage, output short‑circuit risk, drive parameter mismatch or unstable grid voltage fluctuation.
• Q: Can ABB S‑123H 3BHB030479R0112 be hot‑swapped while drive keeps running?
  A: Hot‑swap is prohibited. Shut down the whole drive system, cut off high‑voltage power and complete lockout‑tagout procedures before replacement for personal and equipment safety.
• Q: Can this phase module work with other ABB drive series or third‑party medium‑voltage inverters?
  A: It is exclusively developed for ACS6000 drive platform; dedicated power interface, drive logic and cooling structure cannot adapt to other drive systems.

• Q: Is ABB S‑123H 3BHB030479R0112 available for brand‑new medium‑voltage drive projects?
  A: This legacy medium‑voltage phase module has reached end‑of‑life. Only surplus and fully‑tested refurbished units are provided for existing‑site maintenance work.

3BHB030479R0112.pdf