Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE Multilin |
| Model Number | UR6DH |
| Product Type | Digital I/O Expansion Module |
| Product Family | Universal Relay Series |
| Main Function | Additional contact inputs and relay outputs |
| Digital Inputs | 16 contact inputs |
| Output Type | Form-C relay contacts |
| Installation | Plug-in module for UR relay chassis |
| Software Support | EnerVista UR software |
| Module Interface | Internal UR relay backplane connection |
| Application | Protection relay control, status monitoring, breaker interface |
| Dimensions | Approx. 6 × 7 × 1.5 inches |
| Weight | Approx. 2.5 lb |
| Operating Environment | Industrial substation control cabinet |
Product Introduction
GE Multilin UR6DH Overview
The GE Multilin UR6DH is a Digital I/O module designed for the GE Multilin Universal Relay platform. It expands relay field interface capability by adding additional contact inputs and outputs used for breaker status, alarms, interlocking signals, and auxiliary equipment control.
The GE Multilin UR6DH is commonly installed in power generation and substation protection systems where relay logic requires additional hardwired signals. The module works with the UR Series architecture and is configured through EnerVista UR engineering software.
UR6DH
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A feeder relay trips correctly, but the associated breaker indication, alarm contact, or interlock signal does not behave as expected. Engineers often focus on the protection relay settings first. The problem may actually be in the digital I/O module, field wiring, or contact configuration.
The UR6DH sits between the relay logic and external equipment. A wrong contact assignment or incorrect wiring can create confusing symptoms during commissioning.
Typical Applications
- Electrical Substations – Breaker position feedback, trip circuit monitoring, alarm annunciation, and interlocking logic.
- Power Generation Plants – Generator protection systems requiring additional status inputs and control contacts.
- Industrial Distribution Systems – Motor feeder protection, switchgear monitoring, and auxiliary relay interfaces.
- Oil & Gas Facilities – Electrical protection panels supporting pumps, compressors, and process power equipment.
Technical Pitfalls to Avoid
- Verify Module Slot Configuration
UR Series relays support multiple I/O module combinations. Confirm the exact chassis slot location and hardware configuration before replacement.
- Check Contact Type Requirements
The UR6DH configuration includes specific contact arrangements. Verify whether the application requires Form-C, Form-A, or another output type before installation.
- Confirm EnerVista Configuration
A replacement module may require relay configuration updates. Check I/O assignment, logic equations, and signal mapping before returning the protection system to service.
Related Products
- GE Multilin UR8DH
Another UR Series digital I/O option with a different contact arrangement. Used when additional relay interface capacity is required. - GE Multilin UR-8FH
Digital I/O module variant for UR Series relays. Application depends on required input/output combination and contact configuration. - GE Multilin UR-6CH
Related Digital I/O module within the Universal Relay family. Verify input/output allocation before substitution. - GE Multilin UR-9CH
Higher-capacity I/O option used in UR relay systems requiring additional field signal interfaces. - GE Multilin UR Series CPU Module
Main processing assembly for Universal Relay systems. The operates as an expansion module controlled by the relay processor. - GE Multilin CT/VT Input Modules
Analog measurement modules used for current and voltage acquisition in UR protection applications. Different function from digital I/O modules. - GE Multilin UR F35 Feeder Protection Relay
A UR Series protection platform commonly using digital I/O modules for breaker control and status monitoring. - GE Multilin UR G60 Generator Protection System
Generator protection platform where digital I/O expansion modules may be applied for plant interface signals.
