The GE Multilin UR-RHH is a high-reliability power supply module engineered specifically for the Universal Relay (UR) series. As a critical component of the UR modular platform, it ensures stable, filtered power for both the relay’s internal processing units and external dry contact input connections. This module is widely utilized in mission-critical power generation, transmission, and distribution environments, where it provides essential self-diagnostic monitoring to maintain system uptime and operational security.

Technical Specifications

Operational & System Features

• ⚙️ System Compatibility: Designed for integration within the GE Multilin Universal Relay (UR) and UR Plus series modular chassis.

• ⚡ Voltage Ranges: Engineered for versatility with two primary input configurations:

  • Low Range (LO): 24 to 48 V nominal (DC only).

  • High Range (HI): 125 to 250 V nominal (DC and AC).

• 🛡️ Health Assessment: Integrated self-testing elements automatically verify hardware integrity, with the ability to de-energize upon detection of critical internal failures.

• 🔌 Safety & Protection: Features an internal 4A / 250V fuse and robust electrical isolation to prevent the propagation of electrical faults within the relay rack.

Physical & Origin Details

• 📏 Dimensions: Compact modular form factor, approximately 165 mm x 165 mm x 44 mm.

• ⚖️ Weight: Optimized at approximately 1.2 kg to support rugged rack-mounted stability.

• 🌍 Origin: Manufactured to strict industrial standards for long-term reliability in high-interference substation environments.

Recommended UR Series Modules & Components

To maintain your Multilin UR protection platform, the following modules are frequently paired with the UR-RHH power supply to ensure comprehensive relay performance:

• UR-CPU – The core processing module managing all logic, protection, and communications.

• UR-8D – Digital input/output module for expanding I/O capacity.

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

• UR-8O – Digital output module for critical breaker and auxiliary control.

• UR-CTVT – Analog input module for precision current and voltage sensing.

• UR-IRC – Inter-relay communication module for high-speed network integration.

• UR-M80 – Advanced metering and transducer input module.

• UR-PPRO – Primary processor module with enhanced cybersecurity capabilities.