UR7BH | GE Multilin Network Communication Module for Protection

GE Multilin UR7BH Communications Module — Product Description

Overview

The GE Multilin UR7BH is a communication expansion module designed for Universal Relay (UR) systems used in transmission, distribution, and industrial power protection. It strengthens network connectivity by supporting both modern and legacy protocols, ensuring smooth integration with SCADA and automation platforms. Moreover, the UR7BH enhances data exchange between protection devices, allowing operators to achieve faster coordination and improved situational awareness in critical power environments.

Technical Specifications

Model: UR7BH
Product Type: Communications Module for UR Relays
Manufacturer: GE Multilin (Grid Solutions)

Functionality:

• High-speed communication for UR protective relays

• Peer-to-peer messaging and remote monitoring

• Real-time data exchange with supervisory systems

Supported Protocols:

• IEC 61850

• Modbus TCP/IP

• GE Multilin proprietary protocols

Interfaces:

• Dual Ethernet ports (auto-sensing, redundant)

• RS-232 and RS-485 serial communication

• Optional fiber-optic interface (model dependent)

Performance:

• High-speed data transfer for relay coordination

• Supports GOOSE messaging for rapid event communication

• Enhanced processing power for improved performance

Environmental Ratings:

• Operating temperature: –40 °C to +70 °C

• Storage temperature: –40 °C to +85 °C

• Humidity: 5–95% non-condensing

• Rugged design for substation-grade reliability

Physical Characteristics:

• Compact plug-in module

• Weight: 0.3–0.5 kg 

FAQ

Q1: Which GE relays support the UR7BH module?
It is compatible with multiple GE Multilin Universal Relay (UR) models across the series.

Q2: Does the module support IEC 61850 applications?
Yes, it fully supports IEC 61850 and GOOSE messaging for modern substation automation.

Q3: Can it integrate with older SCADA systems?
Yes, the module supports Modbus, DNP3, and IEC 60870-5-103 for legacy compatibility.

Q4: What installation environment is recommended?
It is suitable for harsh substation locations due to its wide temperature and humidity tolerance.

Q5: Does it offer redundant communication paths?
Yes, dual Ethernet ports allow redundant network architectures for improved reliability.