Product Introduction

Model Interpretation

• 5S: ABB high‑power semiconductor series

• GY: Asymmetric IGCT, unidirectional switching

• 55: 5500 A class current rating

• L: Low‑loss version

• 4500: 4500 V repetitive peak blocking voltage

  This is a high‑current, medium‑frequency optimized base variant.

Technical Parameters

• Repetitive peak blocking voltage (VDRM): 4500 V

• Max continuous on‑state current (ITGQM): 5000 A

• Peak surge current (ITSM): 33 kA

• Typical on‑state voltage drop (VT0): 1.22 V

• On‑state resistance (rT): 0.28 mΩ

• Max switching frequency: up to 1000 Hz (medium‑frequency optimized)

• Operating junction temperature: −40 °C to +125 °C

• Storage temperature: −40 °C to +85 °C

• Cooling: deionized water cooled baseplate

• AC insulation (main terminals): 12 kV

• Mounting force: 36–44 kN

• Weight: approx. 4.2 kg

Interface and Communication Configuration

• Integrated gate drive with fiber‑optic control interface, providing high EMI immunity

• Main power terminals: large copper busbars for low‑resistance, high‑current connections

• Water‑cooled baseplate for efficient heat dissipation

• Built‑in temperature and current sensors for real‑time monitoring and fault diagnostics

• Status feedback via fiber optics for system control and protection

Core Functions

• Delivers stable 4500 V / 5000 A high‑power switching for medium‑voltage conversion systems

• Ultra‑low conduction and switching losses improve system energy efficiency

• Snubberless fast turn‑off capability simplifies peripheral circuit design

• Rugged press‑pack structure ensures long‑term stability under harsh industrial conditions

• Optimized for medium frequencies (<1 kHz), ideal for high‑power, dynamic applications

Application Scenarios

• Medium‑voltage drives (e.g., ABB ACS6000 series)

• Static Var Compensators (SVC) and STATCOM for grid power quality control

• Wind turbine converters and high‑power PV inverters

• HVDC Light transmission systems

• Heavy industries: power generation, metallurgy, mining, oil and gas

Operation and Maintenance Instructions

• Mount the module on a water‑cooled heat sink with clamping force 36–44 kN

• Connect main terminals with professional high‑current busbars; use dedicated fiber cables for gate signals

• Maintain cooling system with qualified deionized water, stable flow and pressure

• Inspect appearance, connections and cooling performance quarterly

• Before disassembly/replacement: fully de‑energize and discharge residual voltage

• Handle with anti‑static protection to avoid ESD damage