IS200HFPAG2ACB: Cabinet Power and Cooling for Mark VI

When a Speedtronic Mark VI cabinet reports over-temperature alarms or drops a control-power rail, the IS200HFPAG2ACB high-frequency AC/fan power supply is a prime suspect. This G2-group HFPA belongs to the Mark VI IS200 board family and exists to convert incoming cabinet power into the fan drive and low-voltage outputs the control section relies on. It is not a logic card, so its faults present as power and cooling problems, and that distinction is the key to diagnosing it efficiently.

Board construction and ratings

The IS200HFPAG2ACB accepts an AC or DC input at four stab-on input connectors and converts it to the outputs the lineup needs, documented as 48 VAC, 52 VAC, 48 VDC, and 17.7 VAC, routed through eight output plug connectors with total output rated not to exceed 90 VA. On the board are two transformers, two heat sinks, three high-voltage capacitors, a metal-oxide varistor for transient suppression, four fuses, and two LEDs that show the status of the outputs. It is normally mounted in the drive cabinet near a board rack or fan enclosure to feed cooling and control power.

Symptoms that look like an HFPA failure but often are not

Several everyday faults imitate a failed HFPA. Rule them out before you commit to a new board:

• A stalled or noisy fan. The fan motor or its harness fails far more often than the supply that drives it. Confirm the fan turns and its connector is solid.
• An open fuse. Any of the four fuses can drop a rail or a fan feed. A fuse that reblows immediately signals a short in the load, which must be found before another board is fitted.
• A missing input. If nothing reaches the stab-on connectors, the fault is upstream at the feed, wiring, or breaker, and a replacement board will not help.
• Under-cooling side effects. Marginal cooling can make other rack cards throw faults, sending you chasing the wrong board. Treat a burst of unrelated alarms as a possible cooling or power symptom.

After the fans, fuses, feed, and LED status are all verified, a genuinely faulty IS200HFPAG2ACB becomes the reasonable conclusion.

Part-number and revision matching for the HFPA

The identifier reads in the usual Speedtronic order: IS200 for the Mark VI IS200 board series, HFPA for the high-frequency AC/fan power supply function, G2 for the functional group, and the A revision with the CB suffix for the hardware revision and coating variant. Because the group and suffix affect fit and configuration, match them to the outgoing board. Our GE Speedtronic Part Number Decoder breaks the string down field by field.

Related power, backplane, and control boards

The HFPA is part of the cooling and power foundation that keeps the rack and its VME cards running. See adjacent parts in the GE Mark VI IS200 Boards collection and the broader GE Speedtronic Turbine Control Boards catalog. Sites running more than one Speedtronic generation can consult our Mark V vs Mark VI: DS200 to IS200 guide when planning spares and upgrades.

Information to include when you ask

To quote accurately we need:

• The full part number and suffix on the label (IS200HFPAG2ACB) and any further revision markings
• A clear photo of the board label
• The turbine model and the cabinet or unit it serves
• Quantity required, and whether it is a spare or an outage

Request a quote today

This IS200HFPAG2ACB is offered used, cleaned and tested, backed by the warranty below. Choose Request a Quote and we will reply within 24 hours with availability and lead time. We ship worldwide on a DDP basis and accept purchase orders from qualified organizations. Let us know your urgency and we will respond accordingly.