Product Overview

The GE UR9WH is a high-performance central processing and digital interface module belonging to the Multilin Universal Relay (UR) family. This microprocessor-driven unit is designed to act as the primary intelligence for protection, control, and monitoring within power system automation frameworks. By integrating versatile I/O capabilities with robust communication stacks, the UR9WH enables real-time logic execution and device orchestration. It is specifically engineered to provide a bridge between field-level binary signals and supervisory control systems, ensuring that industrial automation projects maintain high levels of deterministic accuracy and operational uptime.

Core Hardware Parameters and Interface Profile

• Module Designation UR9WH

• Component Category Universal Relay CPU / Digital I/O Module

• Logic Density 8 Independent Inputs and 8 Discrete Outputs

• Relay Configurations Supports both SPST (Single Pole Single Throw) and DPDT (Double Pole Double Throw) switching

• Network Interfacing Integrated RS-485 and Modbus RTU communication protocols

• Operational Voltage 24 VDC Power Supply compatibility

• Thermal Performance Rated for industrial climates from -20°C to +70°C

• Mass 0.88 kg

• Physical Profile 6 cm x 21 cm x 17.1 cm

• Chassis Compatibility Modular design for UR-series horizontal or vertical racks

• Origin USA

Industrial Operational Scenarios

The UR9WH is a multi-functional asset utilized across various high-stakes automation sectors:

Substation Digital IntegrationServing as a logic solver that monitors breaker statuses and executes trip/close commands, utilizing Modbus communication to report real-time health data to the local HMI.

Coordinated Protective RelayingActing as an auxiliary control unit within the Multilin UR-series chassis to expand the binary I/O count, allowing for complex interlocking schemes in power distribution networks.

Process Automation ControlManaging specialized load switching in industrial plants where 24V DC logic must interface with various field devices through high-integrity SPST/DPDT relay contacts.

Harsh Environment MonitoringDeploying in remote utility sites or mining operations where the module's wide temperature tolerance and robust physical build prevent failure due to environmental stress.

Legacy System MaintenanceProviding a "Brand New" replacement path for UR-series modules discontinued in late 2018, ensuring existing PLC and DCS architectures remain operational without a full-scale platform migration.