GE UR9EH Universal Relay CPU Module
- Product Code: UR9EH
- Availability: In Stock
GE UR9EH Universal Relay CPU Module
Manufacturer: GE Multilin / Baker Hughes
Model: UR9EH (UR-9EH)
Series: Universal Relay (UR) Series
Type: High‑Performance CPU Module
Function: Central processing for protection, control, and communication in power system relays
1. Overview
The GE UR9EH is the core CPU module for the GE Multilin Universal Relay (UR) series, designed for power system protection, monitoring, and control. It serves as the main processor for relays like the G60, G30, and L30, executing protection logic, fault detection, and communication protocols. Its compact, hot‑swap capable design ensures high reliability and minimal downtime in critical power infrastructure.
2. Technical Specifications
• Processor: 32‑bit RISC CPU
• Memory: 1 MB RAM, non‑volatile storage for settings
• Communication: Ethernet (RJ45), RS‑232/RS‑485, Modbus TCP/IP, IEC 61850
• Power: 12–48 VDC input
• Operating Temp: -40°C to +70°C
• Humidity: 5%–95% RH non‑condensing
• Dimensions: 165 mm × 152 mm × 63 mm (6.5” × 6” × 2.5”)
• Weight: ~0.74 kg (1 lb 10 oz)
• Certifications: UL, CE, IEC 61850 compliant
3. Key Features
• High‑Speed Processing: 32‑bit RISC for fast protection logic execution
• Multi‑Protocol Communication: Ethernet and serial ports for SCADA integration
• Hot‑Swap Support: Replaceable without system shutdown
• Advanced Protection Logic: Overcurrent, undervoltage, frequency, and differential protection
• Fault Recording: Captures event data for post‑fault analysis
• Conformal Coating: Protects against dust, moisture, and corrosion
4. Applications
• Power Generation: Generator, transformer, and turbine protection
• Transmission & Distribution: Line, bus, and feeder protection relays
• Industrial Power: Motor protection, capacitor bank control, and interlocking
• Renewable Energy: Wind and solar farm grid connection protection
GE © UR9EH Universal Relay CPU Module