Description
Product Introduction
The IS200EPDMG1BAA comes from General Electric (USA).
It belongs to the EX2100 control system series.
This module receives 125V dc from the station battery.
It also accepts one or two 120V ac inputs as backup.
The board filters all power through terminal block TB1 before distribution.
It supports EGPA, EXTB, and EPSM exciter boards.
Ideal for Mark VI gas and steam turbine control systems.
Works in Simplex or TMR (triple modular redundant) setups.
Technical Specifications
Brand: General Electric
Part No.: IS200EPDMG1BAA
Series: EX2100
Country of Manufacture: USA
Size: 17.8 cm high x 33.02 cm wide
Technology: Surface mount
Product Type: Exciter Power Distribution Module
Availability: In Stock
DC Input: 125V dc from station battery
AC Backup Inputs: One or two 120V ac
Output Voltages: P125V and R125V ( +62.5V and -62.5V to ground)
Terminal Block Rating: 600V ac or dc
Switches Rating: 125V dc, 6A each
Fuses: 14 total
Toggle Switches: 7 total
LED Indicators: 8 green LEDs for power status
Adjustable Jumper (BJS): Isolates ground references
Connectors: 10 plug connectors + 24-point terminal block
Grounded Mounting Holes: 4 for safety
Measurement Range: 125V dc nominal input
Frequency Response: 50/60 Hz for AC backup inputs
Sensitivity: Detects input voltage deviations within ±10%
Linearity: Stable DC output under varying load conditions
Resolution: Not applicable (power distribution device)
Temperature Range: 0 to 60°C (32 to 140°F)
Environmental Tolerance: Resists industrial vibration and humidity
Noise Immunity: Built-in filtration and MOV surge protection
Functional Highlights
AC to DC conversion via external DACA units
Diode-coupled outputs maintain stable +62.5V and -62.5V to ground
Chassis and safety grounding through designated mounting holes
Fused individual outputs with on/off toggle switches
Green LED indicators show power availability at a glance
JDACA1 and JDACA2 connectors for easy AC source connection
MOVs, capacitors, and resistors protect against voltage spikes
Diagnostic Capabilities
Eight LED status lights give instant visual feedback
Fuses allow quick fault isolation
Switches help test individual output channels
Ground reference jumper BJS simplifies troubleshooting in complex systems
Typical Applications
EX2100 excitation systems in power plants
Mark VI turbine control for gas and steam turbines
Industrial generator excitation panels
TMR control architectures needing high reliability
Installation Guide
Mount using the four grounded mounting holes
Connect 125V dc battery to TB1 terminal block
Attach 120V ac backups to JDACA1 and JDACA2
Use external DACA units for AC to DC conversion
Set BJS jumper if external ground reference is needed
Toggle switches on after wiring completion
Commissioning & Maintenance Convenience
No special tools required for fuse or switch access
Front-facing LEDs allow quick health checks
Switches enable easy channel disabling during maintenance
Fuse replacement is straightforward
Adjustable jumper supports system changes without board swap
Compatibility
EX2100 control system fully compatible
Works with EGPA, EXTB, EPSM boards
Supports Mark VI turbine control systems
Fits Simplex and TMR configurations
Certification Information
Manufactured by General Electric under ISO standards
Designed for industrial control system safety requirements
USA-made with RoHS-compliant surface mount technology
Package Contents
One IS200EPDMG1BAA module
No cables or external DACA units included
No mounting screws included
Warranty
12-month warranty against manufacturing defects.
Covers repair or replacement only.
Does not cover misuse or external damage.
Shipping Methods
We ship via FedEx, UPS, or DHL.
Tracking number provided after dispatch.
Typical delivery: 3–7 business days.
Frequently Asked Questions (FAQ)
1. What is the main function of IS200EPDMG1BAA?
It distributes 125V dc power to exciter boards like EGPA, EXTB, and EPSM.
2. Does this module work with Mark VI systems?
Yes. It supports Mark VI gas and steam turbine control systems.
3. How many fuses does it have?
It has 14 fuses in total.
4. How do I know if the board is powered?
Eight green LED lights turn on when the board is energized.
5. Can I use only DC input without AC backup?
Yes. The 125V dc battery input is primary. AC backups are optional.
6. What voltage appears between outputs and ground?
P125V gives +62.5V to ground. R125V gives -62.5V to ground.
7. What is the BJS jumper for?
It isolates ground references when external references exist in your system.
8. My system shows intermittent resets. What should I check?
Check fuse continuity first. Then verify ground connection at the four mounting holes.
9. Can I replace this with a different GE EPDM version?
Check your system voltage. Only use IS200EPDMG1BAA if your design specifies this exact part.
10. How to choose between IS200EPDMG1BAA and newer EPDM versions?
Use this model for 125V dc battery systems with optional 120V ac backup. Choose newer versions for different voltage or communication needs.
Selection Guide
Confirm your system voltage matches 125V dc primary input
Verify if 120V ac backup is required
Check exciter board types: EGPA, EXTB, EPSM are supported
For Mark VI systems, this module is a direct fit
Use Simplex for small turbines, TMR for critical applications
If you need a different grounding reference, the BJS jumper provides flexibility
Contact Information
For inquiries, please contact:
+86 158 8020 0923 (WhatsApp)
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