Description
⚙️ Product Specifications
- Brand: GE Multilin
- Model: UR6BH
- Series: Universal Relay (UR) Series
- Product Name: Digital Input/Output (I/O) Card
- Origin: USA / Canada
- Status State: Active / Refurbished
- Dimensions: Standard UR modular rack-mount format (approx. 7″ x 6″ x 1″)
- Weight: Approx. 0.5 kg
- Country of Origin: USA
- Power Rating: Low Voltage Backplane Powered
📖 Operation Guidelines & Usage Instructions
The GE Multilin UR6BH digital I/O card is designed to expand the input and output processing capabilities of the Universal Relay (UR) protection and control platform used in electrical substations and industrial power systems. Ensure all rack power and external control circuit feeds are completely isolated and de-energized before handling, inserting, or removing the module. Handle the card with proper electrostatic discharge (ESD) safeguards and secure it firmly into the designated chassis slot using retention fasteners. Routine maintenance includes inspecting wiring terminal torque, verifying input/output status via the relay front panel or EnerVista software, and checking for dust accumulation.
⚡ Power-Up / Power-Down Sequence
- Power-Up Sequence: Verify that the digital I/O card is correctly aligned and securely plugged into the UR system backplane slot. Energize the main system power supply. Observe the front-panel display and diagnostic indicators to confirm that the relay recognizes the module and completes initialization without hardware errors.
- Power-Down Sequence: Disable active trip or control outputs through the relay programming software if necessary to prevent unintended process interruptions. Turn off the main power distribution unit supplying the UR relay rack, allow internal circuits to fully discharge, and carefully extract the card.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary function of the UR6BH module within the Universal Relay system?
A: It provides additional digital inputs and outputs, allowing the protective relay to interface with more external breaker auxiliary contacts, trip circuits, and plant control signals.
- Q: Can this UR series module be hot-swapped while the protection relay is energized?
A: No, live insertion or hot-swapping UR modules is generally not recommended to avoid damaging sensitive electronic backplane pins or triggering false protection operations. Always power down the system first.
🚀 Recommended GE Multilin Models
- UR6BH (Alternative configurations)
- UR8AD
- F60 Feeder Protection System
- D60 Line Distance Protection System
- T60 Transformer Protection System
- M60 Motor Protection System
- C60 Breaker Management Relay
- B30 Busbar Protection System
- EnerVista UR Series Hub
- Multilin 750


