The GE Multilin UR-6CH is a specialized high-density digital input/output module designed for the Universal Relay (UR) platform. It is engineered to provide expanded connectivity for complex protection and control schemes in power substations. By facilitating the monitoring and switching of critical external signals—such as breaker status, disconnect switch positions, and protection lockout relays—the 6CH module ensures the relay can effectively execute sophisticated logic-based operations required for modern grid management.

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: Configurable digital inputs and outputs designed for high-reliability monitoring and auxiliary control.

• 🛡️ Signal Isolation: Features robust galvanic isolation between field-side signals and the internal relay backplane to ensure protection against ground loops and electrical transients.

• 🔋 Flexible Logic: Supports programmable contact inputs with debounce filtering to prevent false triggering from noisy industrial environments.

• 📊 Diagnostic Feedback: Integrated hardware monitoring allows the relay to alert the user to I/O configuration mismatches or signal loss in real-time.

Physical & Origin Details

• 📏 Dimensions: Standard UR series modular footprint, designed for easy insertion into the relay rack.

• ⚖️ Weight: Durable construction, weighing approximately 0.9 kg to 1.1 kg.

• 🌍 Origin: Manufactured to strict 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 commonly paired with the UR-6CH 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 – Digital I/O module for additional expansion of discrete signals.

• 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.