339-E-P1-G1-H-E-S-N-N-SN-D-N Technical Specifications
| Manufacturer | GE Multilin |
| Series | 339 Motor Protection System |
| Part Number | 339-E-P1-G1-H-E-S-N-N-SN-D-N |
| Ground Current Input | 1A |
| 3-Phase Current Inputs | 1A |
| Country of Manufacture | Canada |
| Power Supply | 110-230VAC/110-250VDC |
| Contact Inputs | 10 |
General Information
The 339-EP1G1HESNN3EDN is a relay designed for protection, management, and control of low and medium-voltage industrial motors. This unit was designed by GE Multilin as part of their 339 series of made-to-order motor protection systems. This means that this model and others from this series were configured with a specific set of features when they were initially ordered. For example, this unit has 1A ground and three-phase current inputs. If you would like to see the full list of specs for this model, see the attached naming guide in the “Manuals” section of this page.
Key Features
Some of the more notable features of the 339-EP1G1HESNN3EDN include its case design, communications, and inputs/outputs. The drawout case design that this model uses is invaluable in reducing system downtime for things like maintenance and testing. This unit has an advanced communications feature set, which includes all the standard features plus Ethernet Modbus TCP/IP, DNP3.0. IEC 61850, and IEC 60870-5-104. This model has 10 contact inputs as well as 2 Form A and 5 Form C outputs.

Environmental Information
The 339-EP1G1HESNN3EDN is a high-voltage unit with a 110-250VDC/110-230VAC power supply. This unit has the standard array of extensive current protections. These protections include features like undercurrent, thermal overload, phase/neutral/ground overcurrent, and much more. This unit is not coated with the optional harsh environment conformal coating, so it may be more susceptible to particularly harsh industrial situations than others in this series.
Frequently Asked Questions about 339-C-P5-G5-H-E-S-N-P-3E-D-N
Does the 339-EP1G1HESNN3EDN have diagnostic alarms?
What preventative maintenance features are present in the 339-EP1G1HESNN3EDN?
Key Features
- Advanced Protection:
Comprehensive motor protection system designed to ensure the reliability and longevity of medium voltage motors. - Enhanced Thermal Modeling:
Features sophisticated thermal modeling with support for RTDs (Resistance Temperature Detectors) and current unbalance biasing, reducing the risk of motor damage. - Environmental Monitoring:
Equipped with integrated monitoring for operating conditions, supporting preventive maintenance and minimizing unscheduled downtime. - Flexible Communication:
Supports IEC 61850 and other common industrial protocols, with multiple communication ports for easy system integration. - Simplified Maintenance:
Features a drawout design, making testing, commissioning, and maintenance simpler, and reducing downtime significantly. - Customizable Overload Protection:
Offers customizable Flex curves for motor overload protection, allowing for tailored settings specific to the application.
Technical Specifications
| Parameter | Specification |
|---|---|
| Current Inputs | 5 A / 3-phase current input, 5 A ground current input |
| Voltage Inputs | 110–250 V DC, 110–230 V AC |
| Contact Inputs | 10 contact inputs |
| Contact Outputs | 7 contact outputs |
| Thermal Protection | Enhanced thermal model with RTD support, up to 3 internal RTDs |
| Environmental Monitoring | Integrated system for operating condition monitoring |
| Communication Protocols | IEC 61850 and other industrial protocols |
| Drawout Design | Simplifies testing, commissioning, and maintenance |
| Power System Diagnostics | Advanced diagnostics for power systems and switchgear |
| Motor Overload Protection | Customizable Flex curves for tailored protection |







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