Product Details
Product Description
The GE D25 (Multilin™ D25) is a multifunctional Intelligent Electronic Device (IED) and substation automation controller developed by GE Vernova. It consolidates multiple roles—including PLC, RTU, data concentrator, bay controller, and power quality monitor—into one modular platform. Designed for both new installations and retrofit projects, the D25 streamlines monitoring, control, and automation in substations while maintaining reliable performance under harsh electrical environments.
Its architecture supports extensive I/O capacity, advanced communication protocols, and flexible automation schemes through LogicLinx® soft logic. The rugged design and industrial‑grade components make it suitable for demanding utility and industrial power system applications.
Technical Specifications
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Model / Order Number: GE D25 (Multilin™ D25)
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Manufacturer: GE Vernova (GE Grid Solutions)
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Type: Substation Automation Controller / Intelligent Electronic Device (IED)
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Processor: 32‑bit RISC
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Memory: 64 MB DRAM, 32 MB Flash
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Operating System: QNX real‑time OS
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Digital Inputs: Up to 128
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Digital Outputs: Up to 64
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Analog Inputs: Up to 32
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Analog Outputs: Up to 16
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Communication Ports: Ethernet, serial, modem, fiber optic
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Supported Protocols: Over 110, including DNP3, IEC 61850, Modbus, TCP/IP
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Functions: PLC, RTU, LAN node, IED gateway, bay controller, metering, power quality monitoring, fault/event recording
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Form Factor: Rack‑mounted, modular design
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Environment: Industrial‑grade, suitable for substation conditions
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Local HMI: Optional Data Display Panel or Graphical Display Panel (GDP)
Application Scenarios
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Substation automation and control for utilities and industrial power systems
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Monitoring and management of legacy relays and third‑party devices
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Data acquisition, fault recording, and power quality analysis
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Local HMI operation with optional graphical display
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Software‑based automation schemes via LogicLinx®
FAQ
Q: What functions does the GE D25 integrate? A: It combines PLC, RTU, data concentrator, bay controller, metering, and power quality monitoring into one device.
Q: How many communication protocols are supported? A: Over 110 protocols, including DNP3, IEC 61850, Modbus, and TCP/IP.
Q: Is the D25 suitable for retrofit projects? A: Yes, it is designed for both new installations and retrofits.
Q: What operating system does the D25 use? A: It runs on the QNX real‑time operating system.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.





























