The GE Multilin UR-6EH is an expanded-functionality digital input/output module specifically engineered for the Universal Relay (UR) platform. This module is essential for applications requiring high-density, reliable switching and monitoring of auxiliary substation equipment. It plays a critical role in complex protection schemes by interfacing the relay with external control components, such as circuit breaker trip coils, alarm enunciators, and status-monitoring contacts, ensuring high-speed, deterministic performance in demanding utility environments.

Technical Specifications

Operational & System Features

• ⚙️ System Compatibility: Optimized for seamless integration into the GE Multilin UR and UR Plus series modular chassis.

• ⚡ I/O Functionality: Provides a robust array of configurable digital inputs and outputs, facilitating versatile control over substation assets.

• 🛡️ Signal Isolation: Features high-level galvanic isolation between field signals and the internal relay backplane to prevent damage from electrical surges or ground potential shifts.

• 🔌 Debounce Filtering: Incorporates programmable input debounce filtering to ensure protection against false triggers in electrically noisy environments.

• 📊 Diagnostic Feedback: Integrated hardware monitoring continuously verifies the status of I/O channels, providing real-time health data to the relay’s central processor.

Physical & Origin Details

• 📏 Dimensions: Standard UR modular form factor, approx. 165 mm x 165 mm x 44 mm.

• ⚖️ Weight: Durable construction, weighing approximately 1.0 kg, designed for secure rack mounting.

• 🌍 Origin: Manufactured to rigid utility-grade quality standards for long-term reliability in high-interference substation environments.

Recommended UR Series Modules & Components

To build a fully functional protection and control suite, the following modules are frequently paired with the UR-6EH to enhance the capabilities of your UR relay:

• UR-CPU – The core intelligence module managing protective logic and system communications.

• UR-RHH – High-reliability power supply module for stable rack operation.

• UR-8D – Standard digital I/O module for additional discrete signal capacity.

• UR-8I – High-density digital input module for complex control scheme inputs.

• UR-8O – Digital output module for high-current breaker trip or close operations.

• UR-CTVT – Analog input module for precision monitoring of current and voltage transformers.

• UR-IRC – Inter-relay communication module for high-speed protection messaging.

• UR-M80 – Advanced metering module for power quality and transducer data logging.