Allen-Bradley 80026-044-06-R IGCT Gate Drive Power Supply Board

Product Brief Description

The Allen-Bradley 80026-044-06-R is a dedicated multi-channel isolated switching power supply board developed for PowerFlex 7000 medium voltage variable frequency drives. It provides stable isolated 20VDC power for IGCT gate drive circuits. With 50VDC main input and six independent 20VDC output channels, this PCB assembly adopts reinforced insulation, built-in surge suppression and comprehensive circuit protection. It is a critical power component for the medium voltage inverter power stack, built to withstand high electromagnetic interference and harsh industrial conditions in power and heavy industry applications.

Product Functions

• Convert 50VDC input into six isolated 20VDC output channels to supply power for IGCT gate drive units
• High isolation design separates low-voltage control circuit from high-power medium voltage power stage to reduce noise and ground loop interference
• Integrated overvoltage, overcurrent, short-circuit and overtemperature protection to protect IGCT power devices and drive circuits
• Supplies reliable gate trigger power to control IGCT turn-on and turn-off actions inside PowerFlex 7000 MV drive
• Onboard status indicators for power channel monitoring, assisting maintenance staff to quickly locate faulty channels
• Filter and suppress high-frequency switching noise to maintain stable gate driving signals during continuous heavy-load operation

Application Scenarios

• Rockwell PowerFlex 7000 and 7000H medium voltage variable frequency drive power cabinets
• Large motor speed control systems for oil & gas, mining, water pump and fan loads
• Power plant auxiliary medium voltage motor variable speed control equipment
• Chemical and petrochemical heavy-duty medium voltage drive systems
• Industrial energy-saving retrofit projects using Allen‑Bradley medium voltage inverters

Frequently Asked Questions