IS200HFPAG2ADC: A Used Mark VI High-Frequency AC/Fan Power Supply

Offered in used, cleaned-and-tested condition, the IS200HFPAG2ADC is GE's Mark VI high-frequency AC/fan power supply, the board that turns cabinet input power into the fan drive and low-voltage rails the Speedtronic control section depends on. Because it underpins cooling and control power for the whole lineup, keeping a sound HFPA in service, or a tested spare on the shelf, protects the rest of the cabinet from cascading problems.

Function and on-board components

The board takes an AC or DC input on four stab-on input connectors and converts it into the cabinet's required outputs, documented as 48 VAC, 52 VAC, 48 VDC, and 17.7 VAC through eight output plug connectors, with total output rated not to exceed 90 VA. It carries two transformers, two heat sinks, three high-voltage capacitors, a metal-oxide varistor for surge protection, four fuses, and two LEDs that report the output status. GE mounts it in the drive cabinet near a board rack or fan enclosure, where it supplies cooling and control power rather than sitting on the control bus.

Repair-or-replace: reading the board before you decide

With a used board in hand, the practical question is whether to fit it, repair the one you have, or keep looking. Let the symptoms guide you:

• Start at the LEDs and fuses. The two output LEDs and the four fuses tell you quickly whether the fault is a single branch or the whole board. A blown fuse alone is not a board failure.
• Prove the input and the load. Confirm supply at the stab-on connectors and make sure no fan or cable downstream is shorted. A short will keep taking out fuses regardless of which board is installed.
• Check the fans directly. Cooling faults are frequently mechanical. A fan that will not spin, or a blocked enclosure, can masquerade as a supply failure.
• Factor in age and heat. Transformers and capacitors are the parts that age; an intermittent that appears only when hot may justify replacement or repair rather than continued use.

Once you have isolated the fault to the board itself, this cleaned-and-tested IS200HFPAG2ADC is a sound drop-in, and we can also advise on repair of your existing unit.

The HFPA naming scheme at a glance

The part number is built in segments: IS200 is the Mark VI IS200 board series, HFPA is the high-frequency AC/fan power supply function, G2 is the functional group, and the A revision plus the DC suffix denote the hardware revision and coating variant. Match the group and suffix to the board you are removing to be sure of fit. For the full logic behind the code, see our GE Speedtronic Part Number Decoder.

Building a Mark VI spares strategy

Since the HFPA supports the rack and every VME card that needs cooling and power, it is a sensible board to hold as a spare. Review complementary parts in the GE Mark VI IS200 Boards collection and across the GE Speedtronic Turbine Control Boards range. If you also maintain earlier equipment, our Mark V vs Mark VI: DS200 to IS200 guide helps map the differences between platforms.

What we need to quote accurately

Please send:

• The complete part number and suffix from the label (IS200HFPAG2ADC) and any additional revision codes
• A photo of the board label
• The turbine model and the cabinet or unit it serves
• Quantity, and whether you are stocking a spare or covering a live repair

Request your quote

This IS200HFPAG2ADC is a used, cleaned-and-tested board backed by the warranty shown below. Click Request a Quote and we respond within 24 hours. We ship worldwide DDP and accept purchase orders from qualified organizations. Tell us your timeline and we will confirm stock and lead time.