Overview

The ABB 3BHB004661R0101, also known as KUC711AE101, is a gate power supply unit engineered to deliver galvanic isolation and fast switching performance for insulated-gate bipolar transistors (IGBTs) in medium-voltage drive systems.

It is a critical component in ABB’s ACS800/ACS1000 drive platforms, supporting fiber-optic triggering and high-voltage isolation between control electronics and power semiconductors. The module is built to operate in harsh industrial environments, offering 5 kV isolation voltage and ≤50 ns propagation delay, ensuring accurate and synchronized gate firing.

Its rugged design and ABB’s proprietary Fiber-Optic Triggering (FOT) technology make it ideal for high-speed, high-reliability applications.

Technical Data

Typical Applications

This gate unit power supply is widely used in medium-voltage AC drive systems, particularly in steel mills, mining operations, and heavy manufacturing where precise motor control and high-speed switching are essential.

It powers the gate drivers that control IGBT modules in ACS1000 drives, ensuring synchronized and safe operation of high-power motors. Its fiber-optic interface minimizes electromagnetic interference, making it suitable for electrically noisy environments. Engineers value its reliability, fast response, and robust isolation, especially in mission-critical applications where downtime is unacceptable.

FAQ

Q1: What drives is the 3BHB004661R0101 compatible with?
A1: It is designed for ABB ACS800 and ACS1000 medium-voltage drive systems.

Q2: What is its primary function?
A2: It supplies isolated power and fiber-optic triggering signals to IGBT gate units.

Q3: What is the isolation voltage?
A3: It provides 5 kV galvanic isolation between control and power sections.

Q4: Is it suitable for high-speed switching?
A4: Yes, it offers ≤50 ns propagation delay for precise gate control.