Multilin 869


The Multilin 869 provides advanced functionality for various types of applications such as high-speed protection, extensively customizable programmable logic, advanced motor monitoring & diagnostics, and flexible configuration capabilities. Advanced communications allows easy integration into process and electrical control systems for smoother asset monitoring & control.

Quality & Reliability

IPC A-610-E Class 3 manufacturing standards to ensure device quality and reliability
Environmental board level stress screening and full functional testing
Standard harsh environmental coating for added reliability

GE's Multilin 859 - Motor Protection System

Innovative Technology & Design

Proactive motor health diagnostics with Electrical Signal Analysis for electrical, mechanical and thermal monitoring
Advanced, flexible and embedded communications: IEC® 61850 Ed2, IEC 62439/PRP, Modbus® RTU & TCP/IP, DNP3.0, IEC 60870-5-104
Field swappable power supply & enhanced relay draw-out construction

Uncompromising Service & Support

Covered under GE’s 10-year warranty
Designed, tested and assembled by GE

GE's Multilin 859 - Motor Protection System

Ease of Use

Single setup and configuration software across the 8 Series platform
Automated and simplified settings file conversion of legacy GE devices
Draw-out design simplifies testing and increases process uptime

Advanced Motor Monitoring & Diagnostics

Integrated, cost effective monitoring and diagnostic features that leverage existing relay data without the need for additional devices or sensors to detect electrical, thermal or mechanical abnormalities before they become critical motor failures.


If undetected, insulation failure can evolve into phase or ground faults, causing equipment damage or loss, and significant unplanned downtime. The 869’s advanced motor monitoring and trending capabilities provide identification of critical electrical conditions.


The 869 continuously and proactively monitors the motor for Thermal Capacity Used (TCU) to provide early warning of thermal stresses.


Without the need for additional sensors or probes, the 869 utilizes GE's patented Electrical Signature Analysis (ESA) / Motor Current Signature Analysis (MCSA) to identify mechanical abnormalities in the motor.

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