Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (General Electric) |
| Model | IS200RAPAG1B |
| Product Type | Rack Power Supply Board |
| Series | Mark VI |
| Input Voltage | 24 V DC |
| Input Current | 0.14 A |
| Output Voltage | 5 V DC |
| Output Current | 4 A |
| Output Power | 20 W |
| Fuse | 1 A, 250 V |
| LED Indicators | IPOK, MPOK |
| Test Points | N15, P5, P15, DCOM |
| Backplane Interface | P1 Connector |
| Operating Temperature | -20 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
The IS200RAPAG1B is installed in the GE Mark VI Innovation Series rack and supplies regulated DC power to rack-mounted control boards. Hardware revision compatibility should be verified before installation.
Product Introduction
The GE IS200RAPAG1B is a Rack Power Supply Board developed for the GE Mark VI turbine control platform. It converts a 24 V DC input into regulated low-voltage power for rack-mounted control and interface boards, supporting stable operation of gas turbine and steam turbine control systems.
Designed for continuous industrial operation, the board features onboard status indicators, integrated protection circuitry, and a P1 backplane connection for the Innovation Series rack. It is widely used in power generation, combined-cycle plants, and industrial turbine control systems where dependable power distribution is essential.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| IPOK LED off | No 24 V DC input | ✅ High | Measure 24 V DC at the input connector | Check power supply and upstream fuse |
| MPOK LED off | Internal output voltage fault | ✅ High | Measure 5 V DC output at test points | Replace board if output remains unstable |
| Entire rack loses power | Rack power supply failure | ✅ High | Verify 24 V input and inspect the 1 A fuse | Replace fuse or power board if necessary |
| Controller reboots intermittently | Output voltage fluctuation | ✅ High | Monitor 5 V output under load | Inspect for overloaded rack or failing board |
| Burnt fuse | Short circuit on downstream boards | ⚠️ Medium | Disconnect rack loads and replace fuse for testing | Identify short before installing a new board |
| Overheating | Restricted cabinet airflow | ⚠️ Medium | Measure cabinet temperature and inspect ventilation | Improve cooling before replacing hardware |
Field Tip: Rack power boards are often replaced when the actual problem is a downstream short circuit. Disconnect the rack load and verify that the regulated 5 V DC output remains stable before concluding that the IS200RAPAG1B has failed. Recording IPOK/MPOK LED status and voltage measurements can eliminate unnecessary replacements.
- IS200RAPAG1B
Frequently Asked Questions (FAQ)
Q1. What is the primary function of the IS200RAPAG1B?
It converts a 24 V DC supply into regulated low-voltage power for the GE Mark VI Innovation Series rack, supplying control and interface boards throughout the system.
Q2. Which GE systems use this board?
The is designed for GE Mark VI turbine control systems and is mounted in the Innovation Series rack used in gas and steam turbine applications.
Q3. Can I replace the board while the rack is energized?
No. This board is not hot-swappable. Isolate the control cabinet, follow lockout/tagout procedures, and wear an ESD wrist strap before removing or installing the board.
Q4. Why are both IPOK and MPOK LEDs important?
The IPOK indicator confirms the incoming power is within specification, while MPOK confirms the regulated output is operating correctly. If either LED is off, verify the input voltage, fuse, and output rails before replacing the module.
Q5. Is this product supplied as new or refurbished?
This listing refers to New Original (New Surplus) inventory unless otherwise specified. Every unit should undergo serial number verification, visual inspection, power-on testing, output voltage verification, and ESD-safe packaging before shipment.
Q6. What testing should be completed before shipment?
A recommended quality process includes:
- OEM part number and serial number verification
- Visual inspection for corrosion, repairs, or damaged components
- 24 V DC power-up verification
- 5 V DC output measurement under load
- IPOK and MPOK LED functional testing
- Fuse integrity check
- Final anti-static packaging and QC documentation
Test reports and inspection photos should be available upon request.
Q7. Why does the rack still fail after replacing the power supply board?
A failed downstream controller, backplane short, or overloaded rack can cause repeated power faults. Before installing another , inspect the connected boards, measure the output current, and verify there are no short circuits on the 5 V DC distribution rail. This approach can save hours of unnecessary troubleshooting.
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