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GE Multilin UR6RH UR-6RH Digital Input/Output Module

Configured for contact signal acquisition and relay command execution in GE Multilin Universal Relay (UR) platforms, the GE Multilin UR-6RH (UR-6RH Digital Input/Output Module) provides direct physical/electrical execution between substation field devices and protection relay logic.

Hardware Specifications

Parameter	Specification
Model	UR-6RH
Brand	GE Multilin
Origin	USA
Dimensions	Standard UR chassis slide-in PCB module form factor
Operating Temp	-40 deg C to +60 deg C
Product Type	Digital Contact Input / Relay Output Module
Platform	Universal Relay (UR) / UR Plus Modular Platform
Digital Inputs	4 opto-isolated contact inputs
Digital Outputs	6 relay contact outputs
Output Configuration	2 Form-A outputs, 4 Form-C outputs
Input Voltage Options	24 V, 48 V, 110 V, 125 V, or 250 VDC ordering options
Form-A Operate Time	< 4 ms
Continuous Output Current	8 A
Make and Carry Rating	30 A for 0.2 s per ANSI/IEEE C37.90

GE UR Modular I/O Architecture and Backplane Integration

The UR-6RH module operates as a slide-in expansion card within GE Multilin Universal Relay chassis configurations. The module extends relay hardware capacity through dedicated digital contact acquisition and programmable output switching channels.

The module supports deterministic relay control execution through the UR platform backplane interface. The firmware configuration is managed through EnerVista UR Setup Software, allowing assignment of contact inputs and relay outputs according to protection and automation logic requirements.

The module is designed for industrial control applications requiring direct connection to circuit breakers, disconnect switches, alarms, control switches, and auxiliary relay contacts.

Frequently Asked Questions

Q: Does the UR-6RH support isolated digital input channels?
A: Yes. The digital input channels use opto-isolation to provide electrical separation from connected field contact circuits and improve transient noise immunity.

Q: What type of output contacts are provided by the UR-6RH?
A: The module provides two Form-A normally open outputs and four Form-C changeover outputs with normally open, normally closed, and common terminals.

Q: Is the UR-6RH designed for standalone operation?
A: No. The UR-6RH is a modular expansion card intended for installation in compatible GE Multilin Universal Relay chassis systems.

Field Installation Guidelines

• Install the UR-6RH module only in compatible GE Multilin UR Series chassis slots.
• Verify the ordering option matches the required substation DC control voltage before field connection.
• Use shielded wiring practices for control circuits installed in high electromagnetic interference environments.
• Terminate cable shields according to the site grounding standard and avoid creating multiple unintended ground paths.
• Separate low-level signal wiring from high-energy breaker control and power conductors.
• Confirm terminal assignments for Form-A and Form-C output contacts before connecting external control circuits.
• Perform contact input verification and output relay operation testing after module installation using the configured UR relay logic.

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