D25 Substation Automation Module | GE High-Performance PLC Controller

GE D25‑936A‑9333‑3AAA‑AA1B1 PLC Module – Product Description

Overview

The GE D25‑936A‑9333‑3AAA‑AA1B1 is a modular, high-performance substation automation controller designed for both new installations and retrofit projects. It provides real-time bay control, SCADA integration, and fault monitoring. Moreover, its compact and rugged design ensures reliable operation in harsh industrial and substation environments.

Technical Specifications

Power Supply:

• Input Voltage: 24 VDC

Processing & Architecture:

• High-performance CPU for real-time automation

• Modular, upgradable design for small or large substations

Communication Interfaces:

• Dual redundant Ethernet ports

• RS‑232/RS‑485 serial ports for legacy integration

• Protocols: Modbus TCP/IP, IEC 61850 GOOSE, DNP3.0, IEC 60870‑5‑103

Data Acquisition & Control:

• High-speed data acquisition and event recording

• Breaker and switchgear control with interlocking logic

• Advanced load shedding and automation schemes

Diagnostics & Monitoring:

• Built-in diagnostics and fault detection

• Event logging and remote monitoring via Ethernet

Environmental Ratings:

• Operating Temperature: –40 °C to +70 °C

• Rugged design suitable for harsh substation environments

Physical Specifications:

• Dimensions: 100 mm × 80 mm × 20 mm

• Weight: 0.5 kg

• Compact, rack-mountable form factor

FAQ

Q1: What type of controller is the D25?
It is a modular substation automation controller suitable for bay and SCADA integration.

Q2: Which protocols does it support?
Supports Modbus TCP/IP, IEC 61850 GOOSE, DNP3.0, and IEC 60870‑5‑103.

Q3: Can it be used in harsh environments?
Yes, it is designed for –40 °C to +70 °C with rugged industrial-grade construction.

Q4: How many bays can it control?
The D25 supports up to 65 bays, depending on system configuration and modules installed.

Q5: Is the D25 upgradable for future use?
Yes, the modular design allows upgrades for small or large substation automation needs.