GE UR4LA CT/VT Module | Multilin UR Series Input Expansion

GE UR4LA Digital I/O Module – Product Description

Product Summary

The GE UR4LA is a high-performance CT/VT Input Module from the Multilin UR Series, designed for utility and industrial power systems. It enables accurate acquisition of analog current and voltage signals from CTs and VTs, allowing UR relays to perform precise protection, metering, and monitoring functions. Moreover, its modular design ensures seamless integration with UR chassis and CPU modules for reliable substation operations.

Technical Data / Specifications

Model Number: UR4LA
Series: GE Multilin UR (Universal Relay)
Type: CT/VT Input Module
Primary Function: Acquisition of analog CT and VT signals for relay protection and metering
System Compatibility: GE Multilin UR family (generator, transformer, line, motor protection relays)
Inputs: Multiple CT and VT channels (typically 8 CTs + 4 VTs depending on configuration)
Accuracy: High-accuracy measurement compliant with IEC 60255 standards
Isolation: Galvanic isolation between input channels and CPU
Dimensions: Standard UR chassis module size (6 × 4 in)
Weight: 0.7–1.0 kg
Operating Temperature: –40 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Country of Manufacture: Canada (GE Multilin facility, Ontario)

FAQ

Q1: What is the main purpose of the GE UR4LA module?
It acquires analog CT and VT signals for accurate relay protection and metering.

Q2: How many CT and VT channels does it support?
It typically supports 8 CT channels and 4 VT channels, depending on configuration.

Q3: Is it compatible with other UR modules?
Yes, it integrates seamlessly with UR chassis and CPU modules.

Q4: Does it comply with industry standards?
Yes, the module meets IEC 60255, IEC, and ANSI standards for safety and reliability.

Q5: Can it operate in harsh industrial environments?
Yes, it operates reliably from –40 °C to +70 °C with robust isolation between channels.