Configured for comprehensive motor management and fault protection in industrial power systems, the GE Multilin 339-E-P1-G1-H-E-S-N-P-3E-D-N (339-E-P1-G1-H-E-S-N-P-3E-D-N Motor Protection System) provides direct physical and electrical execution of motor protection logic and monitoring.
Suffix Breakdown & Model Matrix
- 339: Base model series identifier for Motor Protection System.
- E: English language interface without programmable LEDs.
- P1 / G1: 1 A 3-phase and 1 A ground current input configuration.
- H: Auxiliary power supply for 110-250 VDC or 110-230 VAC inputs.
- E: Input/Output configuration: 10 contact inputs and 7 output contacts.
- S: Standard protection logic: includes elements 37, 46, 48, 49, 50P, 50G/SG, 50N, 50L, 51R, 66, 86, 51N, 51P, and 50BF.
- 3E: Communication package: Modbus TCP/IP, DNP3.0, IEC 60870-5-104, and IEC 61850 via copper and fiber (MTRJ) Ethernet.
- D: Protection relay enclosure with drawout design.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 339-E-P1-G1-H-E-S-N-P-3E-D-N |
| Brand | GE Multilin |
| Origin | Subject to factory documentation |
| Weight | 5 kg |
| Dimensions | Standard 339 series chassis dimensions |
| Operating Temp | Industrial standard range |
| Power Consumption | 110-230 VAC / 110-250 VDC |
| Communication | Ethernet (Copper/Fiber), Modbus TCP/IP, IEC 61850 |
Profinet / EtherNet/IP Deterministic Networks
The 339-E-P1-G1-H-E-S-N-P-3E-D-N integrates with deterministic network architectures, supporting multiple protocols including IEC 61850 and Modbus TCP/IP. To maintain network integrity, the relay utilizes both copper and fiber-optic media to ensure high-speed data delivery. Firmware flash compatibility is critical; verify that the relay firmware matches the system-wide integration requirements. Stable communication throughput is maintained via dedicated internal network processors, which isolate protection event reporting from standard supervisory traffic, ensuring critical trip signals are delivered without jitter.
Frequently Asked Questions
Q: Does the 339-E-P1-G1-H-E-S-N-P-3E-D-N support hot-swapping?
A: The relay features a drawout design, but the protection system must be de-energized and current transformer (CT) secondary circuits shorted before drawing the module out of its case to prevent secondary arcing or accidental tripping.
Q: How is the fiber-optic MTRJ interface maintained in industrial environments?
A: The MTRJ connectors must be kept free of dust and contaminants. Use standard fiber-optic cleaning tools to ensure signal strength remains within the required optical budget for network connectivity.
Field Installation Guidelines
- Mounting: Secure the relay case in the designated panel cutout. Ensure the drawout mechanism slides freely and aligns with the rear terminal connectors.
- Wiring: Connect 1 A CT inputs and control power to the rear terminals using high-conductivity ring lugs. Torque all terminal screws to the manufacturer’s specification to ensure electrical connection integrity.
- Grounding: Bond the case ground terminal directly to the cabinet protective earth (PE) bus. A solid, low-impedance connection is necessary for the protection of internal electronics against electromagnetic interference (EMI).
- Commissioning: Prior to motor startup, perform a primary or secondary injection test on each protection element defined in the 'S' configuration to verify correct logic operation and trip timing.
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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| A: All our new and original products come with a standard one-year warranty. |
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