Product Core Brief
- Model: IS200JPDHG1AAA
- Brand: GE (GE Vernova)
- Series: Speedtronic Mark VI / Mark VIe — JPDH Power Distribution Card
- Core Function: Lower-level DC power distribution card inside a Mark VIe PDM, feeding 24/28V DC to I/O packs and terminal boards from the JPDG parent board.
- Product Type: DC Power Distribution Card (PDM sub-board)
- Key Specs: 24/28V DC output | Per-core max ~10A / ~100W | Fits under JPDG IS200JPDGH1A in PDM chassis
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
A dead I/O pack in a Mark VIe cabinet often traces back to one thing: lost DC distribution. The is the JPDH power distribution card that sits inside the Mark VI/Mark VIe Power Distribution Module (PDM), receiving power from the upper JPDG parent board and routing 24/28V DC down to I/O packs and terminal boards. It’s not the top-level distributor — that’s the JPDG (IS200JPDGH1A). The JPDH is the downstream card that actually lands power at the I/O slot level.
Why keep one on the shelf: when a JPDH card fails, the I/O packs it feeds go dark. That can knock out multiple field signals at once — thermocouples, pressure transmitters, valve position feedback. Having a verified replacement ready means you restore the I/O rack during a planned window instead of hunting for a card while the unit is on reduced redundancy. These boards are legacy stock and getting harder to source clean.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | |
| Functional Abbreviation | JPDH |
| Product Type | DC Power Distribution Card (PDM sub-board) |
| Compatible Platform | GE Speedtronic Mark VI / Mark VIe |
| Parent Board | IS200JPDGH1A (JPDG) |
| Output Voltage | 24/28V DC |
| Output Current | ~10A per core (max) |
| Output Power | ~100W max |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 5–95% non-condensing |
| Dimensions | ~170 × 105 × 32 mm |
Note: Exact current ratings and connector pinouts depend on the specific PDM configuration and cabinet wiring. Always verify against your existing card’s label and the GE Mark VIe hardware manual.
Key Selling Points & Differentiators
- Correct JPDH card, not JPDG. This is IS200JPDHG1AAA (JPDH) — the downstream I/O distribution card. It is not IS200JPDGH1A (JPDG), which is the upper-level parent board. Mixing them up is a common procurement error.
- Direct Mark VI/Mark VIe fit. Designed for GE Speedtronic turbine control PDMs — not a generic DIN-rail power supply.
- Multi-card PDM support. A single JPDG parent can feed up to four JPDH cards, so one failed JPDH doesn’t necessarily take down the entire PDM.
- New surplus availability. These are discontinued GE boards. We stock verified, unused units — not pulled cards with unknown thermal cycling history.
- Not recommended for Mark V systems (DS200-series boards) or non-GE turbine control platforms. Wrong platform = wrong connector and pinout.
- 12-month warranty with pre-shipment visual inspection and continuity verification.
Quality Transparency SOP
- Label & revision audit. Verify “IS200JPDHG1AAA” and “JPDH” on the board label. Cross-check against known GE Mark VIe board labeling formats to rule out mislabeled substitutes.
- Visual PCB inspection. Check for burnt traces, swollen capacitors, or corrosion — especially around fuse holders and output connectors. Conformal coating should be intact.
- Connector pin check. Verify all female pin connectors are straight and undamaged. Bent pins on JPDH boards cause intermittent I/O power loss that looks like field device failure.
- Continuity & fuse check. Use a Fluke multimeter to verify fuse continuity and output connector pin-to-trace continuity. Confirm no open circuits on power rails.
- ESD packaging. Sealed in anti-static bag, foam-padded box, shipped with a signed inspection report.
Technical Risk Avoidance
- ❗ Do not confuse JPDH with JPDG. IS200JPDHG1AAA (JPDH) is the downstream I/O distribution card. IS200JPDGH1A (JPDG) is the upper-level parent board that feeds the JPDH cards. They are not interchangeable — different form factor, different function.
- ❗ Verify the parent JPDG board is healthy first. If the JPDG parent board has failed, replacing a JPDH card won’t restore power. Diagnose from the top down: JPDG → JPDH → I/O pack.
- ❗ Check fuses before declaring the card dead. A blown output fuse on a JPDH card mimics a board failure. Test fuse continuity with a multimeter before swapping.
- ❗ Document I/O assignments before removal. Each JPDH card feeds specific I/O packs. Removing the wrong card can de-energize live I/O channels. Verify slot position and connected loads before pulling the board.
Buyer’s FAQ
Q: Is this the same as IS200JPDGH1A? A: No. IS200JPDHG1AAA is the JPDH card (downstream I/O distribution). IS200JPDGH1A is the JPDG parent board (upper-level distribution). They work together but are not interchangeable. Check your existing card’s label carefully.
Q: Will this work in a Mark V cabinet? A: No. Mark V systems use DS200-series boards. The IS200JPDHG1AAA is specific to Mark VI/Mark VIe PDMs.
Q: Is this new or refurbished? A: New original surplus — factory sealed, never installed. We do not sell pulled or refurbished boards as “new.”
Q: How many JPDH cards fit in one PDM? A: Up to four JPDH cards can be fed by a single JPDG parent board, depending on the PDM configuration. Confirm your cabinet’s specific layout before ordering.
Q: What’s the lead time and warranty? A: In-stock units ship within 1–2 business days. 12-month warranty from ship date, covering manufacturing defects and DOA failures.
