GE Multilin UR4LA UR 4LA Digital Input/Output Module

Description

The GE Multilin UR4LA is a high-performance Digital I/O Module designed for the Universal Relay (UR) platform. It integrates isolated digital inputs and high-speed outputs to enable precise protection, control, and monitoring within industrial and utility power systems. This module allows engineers to seamlessly connect external devices, alarms, and breaker signals into relay logic, ensuring system reliability and operational efficiency. Its hot-swappable design reduces downtime, enabling maintenance without shutting down critical systems. Manufactured in the USA, the UR4LA provides long-term dependability in demanding electrical environments.

Key Benefits

• Integrates up to 8 optically isolated digital inputs and 4 high-speed output contacts for advanced relay control.

• Hot-swappable construction allows module replacement without powering down the relay system.

• High-speed outputs ensure reliable breaker operation and fast response for protection schemes.

• Optically isolated inputs provide excellent noise immunity and robust signal integrity.

• Modular design fits seamlessly within the UR relay platform, supporting expansion or replacement.

• Engineered for both utility and industrial applications, offering consistent performance under varied operating conditions.

Technical Specifications

Typical Applications

• Integration of external signals into protective relay schemes for utilities and industrial plants.

• Alarming, interlocking, and breaker control for substations and automated networks.

• Expansion or replacement of UR relay I/O capabilities in modular protection systems.

• High-speed digital signaling where reliability and noise immunity are critical.

Support & Maintenance

The UR4LA module is supported by GE’s comprehensive technical documentation and warranty coverage. Maintenance procedures are straightforward due to its modular and hot-swappable design. Engineers benefit from long operational life and minimal downtime, making the module ideal for mission-critical power protection applications.

FAQ

Q: Can the UR4LA module be replaced without shutting down the relay system?
A: Yes, it is hot-swappable, allowing maintenance or replacement without system interruption.

Q: What voltage range does the UR4LA digital input support?
A: The module accepts 30–60 V DC, with a nominal rating of 48 V DC.

Q: How many outputs does the UR4LA provide?
A: It provides 4 Form A (normally open) outputs rated for 250 V AC / 220 V DC.

Q: Is this module suitable for industrial applications?
A: Yes, it is engineered for both industrial and utility power systems requiring reliable digital signaling.