GE 369-HI-R-0-0-0-0-E high-performance digital motor management relay
Parameter Name
Parameter Value
Product Model
GE 369-HI-R-0-0-0-0-E
Manufacturer
GE Multilin™ (now ABB)
Product Type
Digital Motor Management Relay (High-Current Input Version)
Current Input
3-Phase + Ground, High Range (HI) for 5A CT Secondary
Voltage Input
Yes (Requires connection to Potential Transformers — PTs) for full metering & voltage-based protection
Protection Functions
Thermal Overload (I²t with separate heating/cooling constants), Locked Rotor/Stall, Short Circuit (Inst. & Time Delay), Ground Fault (50: 0.2-2.0A adj.), Current Unbalance, Underload, Jam, Excessive Starts, Start Time Supervision, Phase Loss, Under/Over Voltage, Under/Over Frequency
Metering & Monitoring
True RMS Current (3-phase, avg, ground), Voltage (L-L, L-N), kW, kVAR, kVA, PF, kWh, kVARh, Demand, % Thermal Capacity Used, Motor Starts, Run Hours
The GE 369-HI-R-0-0-0-0-E is a fully-configured, high-performance digital motor management relay from the esteemed GE Multilin™ 369 series, now under the ABB portfolio. This specific model represents a comprehensive, feature-rich configuration designed for the protection, control, and monitoring of critical three-phase AC induction and synchronous motors, particularly those of medium to large size. The «HI» designation indicates it is calibrated for a high-current input range, typically accepting the industry-standard 5 Ampere secondary signal from current transformers (CTs). As a complete motor management system in a single device, the GE 369-HI-R-0-0-0-0-E goes far beyond basic overload protection. It integrates advanced algorithms to guard against a comprehensive suite of electrical and operational faults—including thermal overload based on a precise I²t model, stall/locked rotor, jam, current unbalance, ground fault, and under/over voltage—thereby preventing catastrophic motor failure and minimizing unplanned downtime in mission-critical industrial processes.
The core value of the GE 369-HI-R-0-0-0-0-E lies in its fusion of robust protection with intelligent monitoring and seamless integration. It serves as both a protective device and a rich source of motor performance data, providing real-time measurements of current, voltage, power, power factor, energy consumption (kWh), and motor thermal capacity used. The inclusion of a real-time clock enables time-stamped event and fault recording, which is invaluable for post-incident analysis. Crucially, the «-E» suffix denotes integrated Modbus RTU communication via an RS-485 port, allowing the relay to seamlessly connect to supervisory control systems (SCADA), distributed control systems (DCS), or plant asset management software. This connectivity transforms the motor into a smart, communicative node within the industrial network, enabling predictive maintenance strategies, centralized monitoring, and data-driven operational decisions.
Technical Specifications
Parameter Name
Parameter Value
Product Model
GE 369-HI-R-0-0-0-0-E
Manufacturer
GE Multilin™ (now ABB)
Product Type
Digital Motor Management Relay (High-Current Input Version)
Current Input
3-Phase + Ground, High Range (HI) for 5A CT Secondary
Voltage Input
Yes (Requires connection to Potential Transformers — PTs) for full metering & voltage-based protection
Protection Functions
Thermal Overload (I²t with separate heating/cooling constants), Locked Rotor/Stall, Short Circuit (Inst. & Time Delay), Ground Fault (50: 0.2-2.0A adj.), Current Unbalance, Underload, Jam, Excessive Starts, Start Time Supervision, Phase Loss, Under/Over Voltage, Under/Over Frequency
Metering & Monitoring
True RMS Current (3-phase, avg, ground), Voltage (L-L, L-N), kW, kVAR, kVA, PF, kWh, kVARh, Demand, % Thermal Capacity Used, Motor Starts, Run Hours
Universal 85-265V AC/DC or 24-48V DC (specific range confirmed by final ordering code)
Enclosure
Robust, industrial design for DIN-rail or panel mounting (IP20)
Standards Compliance
UL 508, CSA C22.2 No. 14, IEC 60255, CE Marked
Key Features and Advantages
GE 369-HI-R-0-0-0-0-E distinguishes itself through its all-encompassing protection suite and sophisticated thermal management. Its advanced thermal model protection accurately simulates motor heating and cooling, providing optimal overload protection that accounts for prior running history and prevents nuisance tripping during legitimate starts. Specialized functions like jam protection and current unbalance protection safeguard against mechanical failures and phase loss conditions that can quickly destroy a motor. This multi-layered defensive approach ensures maximum motor life and system reliability.
369-HI-R-M-0-0-0-0
Operational intelligence and diagnostics are central to its design philosophy. The relay functions as a high-accuracy multi-parameter meter, providing essential data for energy management and performance benchmarking. The detailed event log with time stamps captures the sequence of events leading up to a trip, including pre-trigger snapshots of currents and thermal state, drastically reducing mean-time-to-repair (MTTR). The programmable logic and flexible I/O allow for custom control schemes—such as autorest, permissive starts, or complex alarm hierarchies—reducing the need for external relays and simplifying panel design.
Integration readiness and user-centric design provide significant practical benefits. The built-in Modbus RTU communication is a key enabler for Industry 4.0 applications, allowing easy integration into virtually any control or monitoring system for remote data access and historical trending. The intuitive backlit LCD interface offers local access to all settings, real-time data, and diagnostic information without a PC. Its universal power supply and robust industrial construction ensure reliable operation in diverse and demanding electrical environments. For engineers, the GE 369-HI-R-0-0-0-0-E offers a future-proof, feature-complete solution that simplifies design, enhances motor reliability, and delivers actionable insights for optimized asset management.
Application Areas
The GE 369-HI-R-0-0-0-0-E is engineered for demanding applications where motor reliability is paramount to process continuity and safety. In water and wastewater treatment, it is the protector of choice for critical pumps (raw water intake, high-service, sludge transfer) and large aeration blowers, where failure can lead to environmental and public health incidents.
Within heavy industry and manufacturing—such as mining, cement, metals, and chemicals—it safeguards motors driving ball mills, crushers, conveyor systems, mixers, and large compressors. These motors face high inertial loads, abrasive environments, and are critical to the production chain. The relay’s jam and stall protection are particularly vital here. In power generation and district energy plants, it is used to protect boiler feed pumps, induced/forced draft fans, and circulating water pumps, where unscheduled downtime is extremely costly.
For oil & gas operations on platforms and pipelines, the relay protects gas compressors, injection pumps, and loading pumps. Its communication capabilities enable remote monitoring of these often-unattended assets. In large commercial HVAC systems for data centers, airports, and hospitals, it manages critical chillers and cooling tower fans, with its metering supporting energy efficiency efforts. Essentially, the GE 369-HI-R-0-0-0-0-E is deployed wherever a motor is a significant capital asset, costly to repair or replace, and essential to continuous operation.
Related Products
GE 369-LO-R-0-0-0-0-E: The “Low” current range equivalent, designed for 1A CT secondaries.
GE 369-HI-R-M-0-0-0-E: A variant likely adding (“-M”) RTD (Resistance Temperature Detector) inputs for direct motor winding and bearing temperature monitoring.
GE Multilin™ 469 Relay: The next-generation successor featuring a larger color display, enhanced communications (EtherNet/IP, Modbus TCP), more I/O, and advanced diagnostics.
GE Multilin™ 269 Plus Relay: A more economical and simplified motor protection relay for smaller or less critical applications.
Current & Potential Transformers (CTs & PTs): External sensors required to provide scaled current (5A) and voltage signals to the relay.
GE QuickSet™ Software: The dedicated PC-based configuration tool for setting all protection parameters, logic, and communication settings, and for data retrieval and analysis.
Communication Converters/Gateways: Devices to interface the RS-485 Modbus RTU network from the relay to Ethernet-based plant networks.
ABB Ability™ / System 1™ Software: Enterprise asset performance management platforms that can aggregate and analyze data from multiple 369 relays for predictive maintenance.
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