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Protection Relays
Motor Protection

Home > Grid Automation > Protection Relays > Motor Protection

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  Legacy Motor Protection

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Motor Protection

GE’s motor protection systems use advanced thermal modeling to provide optimized protection and ensure maximum process uptime. Our highly skilled engineers and technicians understand motor protection and the various scenarios that can cause damage to motors. They apply their knowledge to the design and manufacture of some of the most advanced protection relays and systems in the world.

Interactive Selector Guide

Large Induction Motors

MiCOM P241/2/3

MiCOM P241/2/3 Agile The P24x line of motor protection relays, part of the MiCOM P40 Agile family of protection relays, offer comprehensive protection, control, and monitoring for large induction and synchronous motors. The relays provides customized thermal curves to match more closely the machine withstand limits and integrated RTDs. Modular range in 4U high, 40TE (4”) 60TE (6”) and 80TE (8”) width.

Multilin M60

Multilin M60 The M60, a member of the UR Family, offers comprehensive protection, control, and monitoring for large induction and synchronous motors. Includes advanced motor protection and monitoring features, for two-speed motors, reduced voltage starting, broken rotor bar detection and motor health diagnostics for motor starts. Supports integrated RTDs as well as an external remote RTD module. It offers a large color LCD display and process bus.

Medium to Large Induction Motors

Multilin 869

Multilin 869 The 869 provides high-speed protection and integrated motor monitoring for medium to large induction and synchronous motors including stator differential protection. Advanced, flexible communications: IEC 61850, IEC 62439/PRP, Modbus RTU & TCP/IP, DNP3.0, IEC 60870-5-104. Advanced M&D and ESA (broken rotor, stator turn to turn fault, mechanical anomalies like eccentricity, foundation weakness, shaft misalignment). Easy upgrade for SR469 motor protection relays. Wi-Fi connectivity to configure settings and retrieve records.

Multilin 859

Multilin 859 The 859 provides comprehensive protection, control and integrated condition monitoring of medium and large sized induction motors. The 859 has been designed as a direct replacement for legacy 169, 269plus and older 369 protection relays.

Small to Medium Induction Motors
Multilin 339

Multilin 339 This 3 Series relay offers a complete protection, control and diagnostics solution for small and medium sized AC motors. It is available with multiple options including draw out or non draw out. Support for multiple communication protocols including IEC 61850, Modbus RTU & TCP/IP, DNP3.0, IEC 60870-5-104.

LV Motors

Multilin MM300

Multilin MM300 EnhancedThe MM300 integrates protection, control, automation, metering, diagnostics and multiple communication protocols in a rugged compact device for low voltage motor applications. Includes thermal protection with unbalance and RTD biasing. Single phase voltage inputs for voltage based protection and metering. Expansion module allows additional digital I/O, RTD or 3 phase voltage inputs.

Special Applications
P40 Agile P24xM

P40 Agile P24xM The P24xM series has been designed with industrial applications in mind. It offers a small form factor and flexible I/O options. It provides customized thermal curves to match more closely the machine withstand limits. Supports up to two Ethernet ports with options for redundancy protocols (RSTP or PRP/HSR) and multiple communication protocols including IEC 61850, Modbus, DNP 3.0 and IEC 60870-5-103.

P50 Agile P253

P50 Agile P253 The P253 provides basic motor protection for small and medium size MV/LV motors. It features flexible communication options such as Modbus, IEC 60870-5-103 or DNP3.0.


Multilin RMIO

Multilin RMIO The Remote I/O module is used by other relays, such as 8 Series or 339, to either add or provide additional RTD temperature monitoring of key components in the motor for added protection.

Multilin RRTD

Multilin RRTD This module is used to add up 12x RTD temperature sensors to the Multilin M60, 369 or 859 relay.

Not finding the motor protection product that you’re looking for? View legacy motor protection products.