Product Description
General Electric UR9AH Multilin Universal Relay CPU Module
- Manufacturer: General Electric (now under GE Vernova)
- Series: Multilin Universal Relay (UR)
- Model/Part Number: UR9AH
- Description: CPU Module for Multilin Universal Relay series
Overview
The General Electric UR9AH is a CPU Module from the Multilin Universal Relay (UR) series, manufactured by GE and now managed by GE Vernova. As the central processing unit for UR relays, it manages data processing, protection algorithms, and communication for power system protection and control. Compatible with UR relays like T60, G60, B30, and L90, it is used in power plants, substations, and industrial facilities to ensure reliable operation of protection schemes for transformers, generators, feeders, and lines.
Technical Specifications
| Specification | Details |
|---|---|
| Model | UR9AH |
| Series | Multilin Universal Relay (UR) |
| Type | CPU Module |
| Function | Manages data processing, protection algorithms, and communication |
| Processor | 32-bit high-performance microprocessor |
| Communication Ports | 2 x 10/100Base-T Ethernet (RJ-45), 1 x RS485, 1 x RS232 (front, 9600–115,200 baud) |
| Communication Protocols | Modbus RTU/TCP, DNP3, IEC 60870-5-104, optional IEC 61850 |
| Memory | Flash memory for firmware, SRAM for data storage |
| Event Recording | Up to 1024 events with time and date stamping |
| Connectors | RJ-45 for Ethernet, terminal block for RS485, DB-9 for RS232 |
| Compatibility | UR series relays (e.g., B30, C60, F35, G60, L90, T60) |
| Installation | Plug-and-play modular design, slots into UR relay chassis (CPU slot) |
| Configuration | Via EnerVista UR software or relay front panel |
| Firmware | Upgradable via EnerVista UR software |
| Dimensions | Approx. 15.2 cm x 17.8 cm x 3.8 cm (6 x 7 x 1.5 in) |
| Weight | Approx. 1.13 kg (2.5 lbs) |
| Environmental Protection | Conformal coating optional for harsh environments |
| Operating Temperature | -40°C to +60°C (-40°F to +140°F) |
| Storage Temperature | -40°C to +80°C (-40°F to +176°F) |
| Relative Humidity | Up to 95% (non-condensing) |
| Certifications | CE, UL, CSA, IEC |
| Manual | GEK-113000 (UR Series Manual) |