GE UR9AH UR Series High-Speed Digital I/O Module in stock
GE UR9AH is a high-speed digital I/O module of GE Multilin Universal Relay (UR) platform, designed for power substation automation and power system protection control. It provides fast digital input and relay output signals for UR series protection relays to realize protection logic and interlock control.
This module adopts high isolation design, supports high-speed signal scanning and sub-millisecond event capture, and communicates with the main CPU via internal Tri-Bus. It is discontinued legacy spare hardware, widely used for maintenance replacement of power protection relay systems.
Main Specifications
| Item | Parameter |
| [1] Brand | GE Multilin |
| [2] Model | UR9AH |
| [3] Product Type | High-Speed Digital I/O Module |
| [4] Series | Universal Relay (UR) Series |
| [5] Input Type | High voltage DC digital input |
| [6] Output Type | Form-A / Form-C relay contact output |
| [7] Internal Bus | Tri-Bus communication with UR CPU |
| [8] Standard Compliance | IEEE C37.90, IEC 60255 |
| [9] Installation | Plug-in module for UR relay chassis |
| [10] Operating Temp | -20℃ ~ +60℃ |
Core Functions
| Function | Description |
| [1] High Speed Digital Signal Acquisition | Collect field digital status signals with high-speed scanning for sub-millisecond event capture. |
| [2] Relay Contact Control Output | Output fast relay contact signals to execute protection trip and interlock commands. |
| [3] Internal Bus Data Exchange | Transmit I/O data to UR main CPU through Tri-Bus internal chassis bus. |
| [4] High Isolation Circuit Protection | Built-in electrical isolation to prevent interference and protect internal relay circuits. |
| [5] Modular Expansion | Plug-in installation to expand I/O capacity for UR series protection relays. |
Application Scenarios
| Industry | Usage |
| [1] Power Substation | Feeder, transformer and generator protection relay signal expansion. |
| [2] Thermal Power Plant | Auxiliary power system interlock and protection signal control. |
| [3] Oil & Gas Industry | On-site power distribution protection and safety interlock control. |
| [4] Legacy Protection System Maintenance | Spare replacement for aging GE UR series relay I/O modules. |
FAQ
| Question | Answer |
| [1] What is GE UR9AH? | It is GE Multilin UR series high-speed digital I/O module for power protection relays. |
| [2] What is its main function? | Collect digital input signals and output relay contact signals for protection interlock. |
| [3] Which system bus does it use? | It communicates with the UR main CPU via internal Tri-Bus chassis bus. |
| [4] Is it obsolete spare part? | Yes, it is legacy spare for maintenance of old GE UR relay protection systems. |
