Description
Key Technical Specifications
- Part Number: DS200CDBAG1BDB
- Manufacturer: GE
- Series: Mark V / Drive Control
- Product Type: Contactor Driver Board
- Primary Function: Drives contactor coils in turbine/control applications
- Contactor Coil Voltage: 30 to 40 V DC
- Current Adjustment: RV1 potentiometer for contactor drive current
- Typical Drive Current: 1.5 A normal setting
- Reduced Current Setting: 0.75 A for DS304-type contactors
- Application: GE industrial drive and turbine control systems
Product Introduction
GE DS200CDBAG1BDB is a Mark V contactor driver board used in GE drive and turbine control systems. It provides coil-drive control for contactors and supports current adjustment through RV1 for application-specific setup.
Buyers usually choose this board when they need an exact Mark V replacement with the same part number and contactor-drive behavior. The 30 to 40 V DC coil range and adjustable drive current make it a direct-fit service part for matching GE systems.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Contactor does not pull in | No drive output from board | ✅ High | Measure coil voltage at the contactor terminals while command is active | Check board output, upstream control signal, and coil wiring |
| Contactor chatters or drops out | RV1 set too low or coil mismatch | ✅ High | Verify drive current setting and compare to installed contactor type | Set RV1 correctly and confirm coil spec before replacing the board |
| Board appears dead | Loss of supply to the board | ❌ Low | Measure input supply at the backplane or harness with a multimeter | Check power source, fuses, and connectors first |
| Intermittent contactor operation | Loose terminals or damaged harness | ❌ Low | Tug-test wiring, inspect pins, and check continuity end to end | Repair wiring before condemning the board |
| Overheating around driver section | Excess load or wrong contactor coil | ✅ High | Compare coil current to the board setting and monitor temperature during operation | Stop operation and verify coil compatibility immediately |
| Works after reset, then fails again | Upstream command or logic issue | ❌ Low | Read PLC or drive diagnostics and confirm control signal timing | Check control logic and interlocks before replacing hardware |
Contact technical support with photos, diagnostic logs, and the exact installed contactor model if you are still stuck.
- DS200CDBAG1BDB
Frequently Asked Questions
Q: What is the GE DS200CDBAG1BDB used for?
A: It is a contactor driver board for GE Mark V control systems. Its job is to provide the drive needed to open and close contactors in the system.
Q: Is this a direct replacement for the original board?
A: Yes, if the installed system uses the same DS200CDBAG1BDB part number and the same contactor setup. Still verify the contactor coil voltage and hardware revision before installation.
Q: Can I swap it without checking anything else?
A: No. Check the contactor coil rating, wiring, and current setting first. A wrong coil or wrong RV1 setting can cause chatter, dropout, or excess heat.
Q: Why is this part often sold as surplus or rebuilt?
A: GE Mark V parts are legacy items, so factory-new inventory is limited. That is why the market often offers new surplus, unused, or tested rebuilt units.
Q: What should I verify before ordering?
A: Confirm the exact part number, existing board revision, contactor type, and coil voltage. I also recommend photographing the old board and wiring before removal.
Q: Is it hot-swappable?
A: Do not assume so. Power down the cabinet before handling it, then follow the site procedure. Pulling a board live can damage the backplane or the replacement board.
Q: What condition should I expect?
A: For this part, sellers commonly list new surplus, unused, or rebuilt stock. The listing should state the condition clearly, because price and warranty depend on it.


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