UR9TH | GE Multilin CPU Module with Ethernet and RS485 Support

GE UR9TH CPU Module for Multilin UR Series Relays

Overview

The GE UR9TH CPU module is the central processing unit for Multilin UR Series relays, providing protection, control, metering, and monitoring for generators, transformers, motors, and transmission lines. It executes critical protection algorithms and programmable logic (FlexLogic™) in real time. Moreover, it manages Ethernet, RS485, and fiber-optic communications, enabling seamless integration with SCADA and DCS systems.

Designed for high reliability and performance, the UR9TH ensures fast response times and complies with international standards, including IEEE 1613 and IEC 60255. Therefore, it is well-suited for modern industrial and utility substation environments.

Technical Specifications

General Information

• Model Number: UR9TH

• Type: CPU Module for UR Series Relays

• System Compatibility: GE Multilin UR Series

• Weight: 600 g (1.3 lb)

• Dimensions: 6.5” L × 6” W × 2.5” H

• Manufacturing Location: Ontario, Canada

• Warranty: 12 months

Processor & Memory

• Processor: Embedded high-performance microprocessor

• Memory: On-board RAM and flash for program and data storage

• I/O Capacity: Supports large I/O configurations depending on relay chassis

Communication & Protocols

• Communication Ports: 10/100 Base‑T Ethernet (RJ45), RS485 serial, 100 Base‑FX fiber optic

• Protocols Supported: IEC 61850, DNP3, Modbus, IEEE C37.118 synchrophasors

Environmental Specifications

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

• Storage Temperature: –40 °C to +85 °C

• Certifications: IEEE 1613, IEC 60255

FAQ

Q1: What series of relays is the UR9TH compatible with?
It is compatible with GE Multilin UR Series Universal Relays.

Q2: Which communication protocols does it support?
IEC 61850, DNP3, Modbus, and IEEE C37.118 synchrophasors are supported.

Q3: What communication interfaces are available on the module?
It provides Ethernet, RS485 serial, and fiber optic connections.

Q4: What is the operating temperature range?
The UR9TH operates from –40 °C to +70 °C for harsh environments.

Q5: What applications is this CPU module suitable for?
It is used in generator, transformer, motor, and line protection within utility and industrial systems.