Product Overview

The GE Multilin UR8NH is an interface module for UR Series universal relay systems, used to bring instrument transformer measurements and discrete field signals into the relay platform. It supports CT and VT signal interfacing for metering and protection functions while also providing digital input and output capability for status, alarms, and control interactions with external devices.

UR8NH is typically installed as part of a modular UR relay build to expand measurement and I/O capacity, helping protection and automation panels maintain consistent wiring practices and reliable signal handling in industrial power networks.

Key Technical Characteristics

• Model / order number: UR8NH

• Module type: Multilin UR module

• Primary functions: CT VT signal interfacing and digital I O expansion

• Supported measurement sources: Current transformers and voltage transformers

• Digital signal interfacing: Supports field device contacts and control signals

• Typical digital sources: Push buttons, selector switches, relay contacts, and interposing I O

• Communication capability: Multi-protocol serial communications support

• Supported protocols: Modbus master slave, DNP3 master slave, CCM slave, SPL, serial I O tasks

• Communication capacity: Up to 64 tasks per port

• Operating temperature range: -40°C to +75°C

• Condition: Brand new

• Product lifecycle status: Active

• Country of origin: USA

• Availability: In stock

• Minimum order quantity: 1

• Approximate weight: 0.36 kg

• HS code: 8537101190

• System application: DCS and protection control panels

• Communication service: Ethernet router

Mechanical Notes

• Dimensions provided for this listing: 8.2 × 12.2 × 6 cm

• Installed-base sources sometimes reference larger envelope dimensions for specific assemblies; confirm panel clearance using the relay chassis and mounting hardware for your UR configuration

Industrial Applications

• UR Series relay installations requiring CT and VT measurement interfacing

• Substation feeder protection and distribution automation panels

• Industrial switchgear monitoring and control systems

• Digital status and command I O integration for protection relays

• Multi-protocol communications integration in legacy and hybrid networks