GE Multilin URRHH (UR-RHH) Redundant Power Supply Module for Universal Relay Series

Product Description

The GE Multilin URRHH (also designated as UR-RHH) is a high-reliability redundant power supply module engineered exclusively for GE’s Universal Relay (UR) Series protection controllers, ideal for mission-critical power system applications (utility substations, industrial plants, renewable energy installations, and critical infrastructure). This modular power supply delivers stable, redundant DC/AC power to the relay chassis and dry contact input circuits, with dual voltage range options (Low Range 24–48 VDC only; High Range 125–250 VAC/VDC) and configurable redundant power capability. Featuring built-in health monitoring, self-test diagnostics, and front-panel LED status indicators, the URRHH ensures continuous power delivery with automatic fault detection and isolation, complying with IEEE C37.90 and IEC 60255 standards for industrial power system reliability.

Key Functions

The URRHH redundant power supply module provides uninterrupted, monitored power to UR Series relays and their input circuits. Key functions include: Dual voltage range support (Low Range: 24–48 VDC nominal; High Range: 125–250 VAC/VDC nominal); configurable redundant power option for 24/7 operation (hot-swappable redundant module); stable power delivery to the relay chassis and dry contact input connections; integrated self-testing (major/minor tests) for automatic health assessment and critical fault de-energization; front-panel LED status indicators (CONTINUOUS ON=healthy, ON/OFF CYCLING=warning, OFF=fault) for real-time monitoring; internal 4A/250V fuse protection for overcurrent safety; galvanic isolation between input power and relay logic circuits (2500 VAC) to eliminate ground loops and EMI; and seamless integration with GE EnerVista UR software for remote diagnostics and configuration.

Application Scenarios

The GE Multilin URRHH redundant power supply module is deployed in mission-critical power system protection applications where uninterrupted power is non-negotiable. In utility transmission/distribution substations, it powers UR Series relays protecting transformers, feeders, and capacitor banks, with redundant power ensuring no protection downtime during utility power fluctuations. For large industrial plants (steel, chemical, oil & gas), it supplies reliable power to UR relays in medium-voltage switchgear and motor control centers, preventing protection system failure during plant power outages. In renewable energy installations (utility-scale solar/wind farms), it powers grid-tie protection relays, ensuring compliance with anti-islanding and grid code requirements. The module is also ideal for critical infrastructure (data centers, hospitals, railway electrification) where protection system availability is essential for operational continuity.

Technical Specifications

• Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
• Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
• Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
• Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.