GE UR7CM | UR Series Digital Input Module for Protection Relays

GE UR7CM UR-7CM Digital Input Module – Product Description

1. Product Summary

The GE UR7CM is a digital input expansion module designed for the Multilin UR relay platform. It enhances the relay’s ability to monitor breaker positions, alarms, and interlocks with high reliability. Moreover, it integrates seamlessly with UR CPUs, allowing real-time execution of protection logic (FlexLogic™) for efficient substation and industrial automation management.

3. Technical Data / Specifications

Model Number: UR7CM
Series: GE Multilin UR (Universal Relay)
Type: Digital Input Module
Primary Function: Acquisition of digital signals for breaker status, alarms, and interlocks
System Compatibility: GE Multilin UR family (generator, transformer, line, motor protection relays)
Inputs: Multiple optically isolated digital channels
Communication Interfaces: Modbus TCP/IP, RS‑485, IEC 61850 compatible
Memory Capacity: 512 KB RAM, 2 MB Flash
Power Supply: 12–24 VDC (depending on configuration)
Operating Temperature: –40 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Dimensions: 100 × 80 × 20 mm
Weight: 0.5kg
Protective Features: Galvanic isolation, surge suppression, noise filtering
Applications: Breaker management, alarms, interlocks, and automation in substations and industrial systems

5. FAQ

Q1: What is the main purpose of the UR7CM module?
It provides digital input expansion for UR relays to monitor breaker status, alarms, and interlocks.

Q2: Which communication protocols does it support?
The module supports Modbus TCP/IP, RS‑485, and is IEC 61850 compatible for SCADA integration.

Q3: Is it suitable for harsh industrial environments?
Yes, it operates from –40 °C to +70 °C with galvanic isolation and noise filtering.

Q4: Can it be used with all UR series relays?
Yes, it is fully compatible with the GE Multilin UR family for multiple protection applications.

Q5: What kind of power supply does it require?
The UR7CM operates on 12–24 VDC depending on the configuration.