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Protection & Control
Motor Protection

Home > Automation & Protection > Protection & Control > Motor Protection > M60

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Multilin M60
Motor Protection System

The M60 motor protection system offers comprehensive protection and control solutions for medium to large-sized three-phase motors. The M60 provides superior protection, control, and diagnostics that include thermal model with RTD and current unbalance biasing, stator differential, reverse and low forward power, external RRTD module, two-speed motors, reduced voltage starting, broken rotor bar detection, and more.

Key Benefits

  • Improved protection sensitivity through a flexible and powerful thermal model including standard, custom, and voltage dependent overload curves
  • Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and flexible process bus support (IEC 61850-9-2LE or IEC 61850-9-2 Hardfiber) ensures interoperability, device managing optimization and reduced cost of ownership
  • Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications
  • Simplified programming with the EnerVista™ M60 motor settings autoconfigurator
  • Robust network security enabling Critical Infrastructure Protection through user command logging, and dual permission access control
  • Application flexibility with multiple I/O options including high density I/O, programmable logic, modularity, and specific customization
  • High-end fault and disturbance recording
  • Reduced relay-to-relay wiring and associated costs through high-speed inter-relay communications
  • Enhanced motor-learned data provides critical information for preventative maintenance
  • Supports latest edition of waveform capture (COMTRADE 2013) simplifying fault records management
  • An integrated large, full color display, provides real-time visualization and control of the protected bay, via a bay mimic as well as annunciator functionality and graphical visualization of phasors


  • Protection and control of medium to large thee-phase induction motors of the most popular construction types
  • Automation or process control functionality
  • Protection of medium to large synchronous motors when paired with the SPM
  • Stand-alone protection or component in automated substation control systems
What's New
Protection & Control
Monitoring & Metering
Software & Security
UR 1 integrated Platform across all 18 applications
Communications icon

New and Enhanced Communication Capabilities

  • New UR process bus modules supporting IEC61850-9-2LE Merging Units and IEC61850-9-2 Hardfiber (FW 7.8x) Module Training available here
  • Support switchable IEC 61850 Ed. 1 and Ed. 2 and redundant SNTP (FW 7.7x)
  • New UR front panel with integrated 7” color, graphical display - providing operators with enhanced situational awareness (FW 7.6x)
  • High density I/O module supporting up to 120 inputs or up to 72 contact outputs – eliminating the need for additional discrete devices (FW 7.6x)
  • Increases GOOSE message reception up to 64 remote devices (FW v7.40)
  • R-GOOSE enables GOOSE messages going beyond the substation, which enables wide area protection and control applications
    (FW v7.40)
  • IEC 61850 in line with Edition 2, IEC 61850 SCL file for all relay's setting (FW 7.30)
  • IRC module that combines C37.92 multimode and direct connection singlemode (FW v7.20)
  • Three independent Ethernet ports
  • Time synchronization via IEEE 1588 (FW v7.00)
  • PRP as per IEC 62439-3 (FW 7.10)
  • IEC 60870-5-103 (FW v7.20)
Cyber security icon

Cyber Security - CyberSentry UR (FW v7.xx)

CyberSentry enables UR devices to deliver full cyber security features that help customers to comply with NERC CIP and NITIR 7628 cyber security requirements through supporting the following core features:

  • Password Complexity
  • AAA Server Support (Radius)
  • Role Based Access Control (RBAC)
  • Secured firmware upgrade: FW file includes hash code that enables authentication prior to being used for upgrading UR Relay (FW 7.9x)
  • Event Recorder (Syslog for SEM)
HardFiber icon

Fully Compatible with GE's Multlilin HardFiber System - Provides support for GE's IEC 61850 HardFiber Process Bus Solution:

  • Complete IEC 61850 Process Bus Solution providing resource optimization and minimizing total P&C life cycle costs. Learn more
Oscillography icon

Extended Oscillography Records

  • Supports IEEE C37.111-1999/2013, IEC 60255-24 Ed 2.0 COMTRADE 2013 standard (FW v7.40)
  • Configurable events allow for records of up to 45s at 64 samples per cycle
Rotor bar icon

Broken Rotor Bar Detection - Eliminate costly downtime with intuitive analysis and detection of broken rotor bar conditions.

  • Uses advanced Motor Current Signature Analysis (MCSA) for detecting a broken rotor bar conditions
  • Fully programmable and operates while the motor is in service
  • Programmable alarm conditions allowing maintenance to be conducted at convenient times
  • New CT failure element for increased current differential selectivity (FW version 7.00)
Remote RTD module

Remote RTD (RRTD) Module - Enables Monitoring of Remote RTDs

  • Provides support to remotely monitor and meter up to 12 programmable RTDs
  • Designed to be installed close to the motor to reduce the number of RTD cables
  • Provides temperature backup protection
Shield icon

New and Enhanced Protection and Control Functionality

  • Expanded Bay Controller Capabilities – providing a one box solution (FW 7.6x)
  • Neutral directional overcurrent with dual polarity criteria "67N" (FW v 7.20)

Key Features

  • Enhanced thermal model with RTD and current unbalance compensation
  • Stator differential
  • Mechanical jam/stall
  • Short circuit tripping
  • Undercurrent/underpower
  • Phase reversal
  • Reverse/low forward power protection
  • Two-speed motor protection
  • Reduced voltage starting
  • Optional internal RTDs & external RTD module
  • Phase directional overcurrent, neutral directional with dual polarity criteria, broken conductor and thermal overload

Protection & Control

The M60 motor protection system offers comprehensive protection and control solutions for medium to large-sized three-phase motors. The M60 includes advanced automation and communication capabilities, extensive I/O options, and powerful fault recording features that can simplify postmortem fault analysis and help minimize motor downtime. As part of the UR Family, the M60 provides superior protection and control.

Functional Block Diagram

M60 Block Diagram

ANSI® Device Numbers & Functions

Device Number Function
27P Phase Undervoltage
27X Auxiliary Undervoltage
32 Sensitive Directional Power
37 Under Power
46 Current Unbalance
47 Phase Sequence Voltage
49 Thermal Overload
50BF Breaker Failure
50G Ground Instantaneous Overcurrent
Device Number Function
50N Neutral Instantaneous Overcurrent
50P Phase Instantaneous Overcurrent
51G Ground Time Overcurrent
59N Neutral Overvoltage
59P Phase Overvoltage
59X Auxiliary Overvoltage
59_2 Negative Sequence Overvoltage
Device Number Function
66 Starts Per Hour, Time Between Starts
67N Neutral Directional Overcurrent
67P Phase Directional Overcurrent
87S Stator Differential
81O Overfrequency
81U Underfrequency
-- Mechanical Jam
-- Under Power

Key Features

  • Metering - current, voltage, power, energy, frequency
  • Oscillography – analog and digital parameters at 64 samples/cycle
  • Event Recorder - 1024 time tagged events with 0.5ms scan of digital inputs
  • Data Logger - 16 channels with sampling rate up to 1 sample / cycle
  • Setting for security audit trails for tracking changes to M60 configurations
  • Motor starting characteristics for the last 250 motor starts

Monitoring & Diagnostics

Monitoring & Diagnostics

The M60 provides protection, control, metering, and monitoring in a single device, easily integrated into existing HMI or SCADA monitoring and control systems

Advanced Automation

The M60 incorporates advanced automation features including powerful FlexLogic™ programmable logic, communication, and SCADA capabilities that far surpass what is found in the average motor protection relay. The M60 integrates seamlessly with other UR relays for complete system protection, including adjacent motors, feeders and other balance of plant protection.

FlexLogic™ diagram

FlexLogic™ allows for the customization of the M60 to operate and control the breakers and other auxiliary devices needed to fit most motor protection schemes and applications.

Key Features

  • Complete IEC 61850 Process Bus solution providing resource optimization and minimizing total P & C life cycle costs
  • Three independent 100Mbps Ethernet ports enable purpose specific LAN support that eliminates latency effect of heavy traffic protocols on mission critical communication services
  • Embedded IEEE 1588 time synch protocol support eliminates dedicated IRIG-B wiring requirements for IEDs
  • Direct I/O secures high-speed exchange of binary data between URs
  • Increase network availability by reducing failover time to zero through IEC62439-3 “PRP” support

Advanced Communications

The M60 provides advanced communications technologies for remote data and engineering access, making it the easiest and most flexible Motor protection relay to use and integrate into new and existing infrastructures. Direct support for fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The available three independent and redundant Ethernet options provide the means to create fault tolerant communication architectures in an easy, cost-effective manner. 
The M60 supports the most popular industry standard protocols enabling easy, direct integration into DCS and SCADA systems.

  • IEC 61850-9-2LE networked or IEC61850-9-2 Hardfiber process bus support
  • DNP 3.0 (serial & TCP/IP)
  • Ethernet Global Data (EGD)
  • IEC 60870-5-103 and IEC 60870-5-104
  • Modbus RTU, Modbus TCP/IP
  • HTTP, TFTP, SFTP and MMS file transfer
  • Redundant SNTP and IEEE 1588 for time synchronization
  • PRP as per IEC 62439-3
  • Supports Routable GOOSE (R-GOOSE)

Interoperability with Enbedded IEC 61850

Use the M60 with integrated IEC 61850 to lower costs associated with motor protection, control and automation. GE’s leadership in IEC 61850 comes from thousands of installed devices and follows on years of development experience with UCA 2.0.

HardFiber System

The M60’s IEC 61850 Process Bus module is designed to interface with the Multilin HardFiber System, allowing bi-directional IEC 61850 fiber optic communications. The HardFiber System is designed to integrate seamlessly with existing Universal Relay applications, including protection functions, FlexLogic, metering and communications. Learn more

Cyber Security - CyberSentry™ UR (FW v7.4xx)

CyberSentry enables UR devices to deliver full cyber security features that help customers to comply with NERC CIP and NITIR 7628 cyber security requirements through supporting the following core features:

Secure FW upgrade

UR FW files v7.9 and up now include a hash code that allows for authentication prior to being used for upgrading UR devices.

Password Complexity

Supporting up to 20 alpha- numeric or special characters, UR passwords exceed NERC CIP requirements for password complexity. Individual passwords per role are available.

AAA Server Support (Radius)

Enables integration with centrally managed authentication and accounting of all user activities and uses modern industry best practices and standards that meet and exceed NERC CIP requirements for authentication and password management.

Role Based Access Control (RBAC)

Efficiently administrate users and roles within UR devices. The new and advanced access functions allow users to configure up to five roles for up to eight configurable users with independent passwords. The standard “Remote Authentication Dial In User Service” (Radius) is used for authentication.

Event Recorder (Syslog for SEM)

Capture all cyber security related events within a SOE element (login, logout, invalid password attempts, remote/local access, user in session, settings change, FW update, etc), and then serve and classify data by security level using standard Syslog data format. This enables UR devices integration with established SEM (Security Event Management) systems.

EnerVista™ Software

The EnerVista™ suite is an industry-leading set of software programs that simplifies every aspect of using the M60 relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the M60 into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR setup software included with every UR relay, to carry out postmortem event analysis and ensure proper protection system operation. Learn More

EnerVista Software