350-E-P1-G1-H-E-S-C-N GE Multilin 350 Feeder Protection Relay
Manufacturer: GE Fanuc
-
Part Number: 350-E-P1-G1-H-E-S-C-N
Condition：New with Original Package
Product Type: Feeder Protection Relays
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE 350-E-P1-G1-H-E-S-C-N Multilin Feeder Protection Relay
Configured for current measurement, trip decision execution, and real-time waveform fault analysis in automated switchgear panels, the GE 350-E-P1-G1-H-E-S-C-N (350 Feeder Protection Relay) provides direct physical/electrical execution across power distribution topologies.
Suffix Breakdown & Model Matrix
The catalog suffix identifies the specific factory-installed hardware and software modules:
- 350: Base system architecture (350 Series Feeder Protection System).
- E: English language front panel display interface.
- P1: 1 A nominal phase CT current inputs.
- G1: 1 A nominal ground CT current inputs.
- H: Universal high-voltage power supply module (88-300 VDC / 70-265 VAC).
- E: Standard 10/100Base-T Ethernet communication port.
- S: Serial communication board equipped with RS-232 and RS-485 interfaces.
- C: Integrated breaker control logic with internal electrical interlocks.
- N: Standard industrial enclosure without extra mechanical coating.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 350-E-P1-G1-H-E-S-C-N |
| Brand | GE Multilin |
| Origin | Canada |
| Weight | 3.73 kg |
| Dimensions | 220 mm x 180 mm x 200 mm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 20 W (125-250 VDC) / 36 VA (120-240 VAC) |
| Phase CT Inputs | 1 A nominal rating (P1 hardware) |
| Ground CT Inputs | 1 A nominal rating (G1 hardware) |
| Communication Protocols | Modbus RTU/TCP, DNP3.0, IEC 60870-5-103 |
| Auxiliary Voltage Range | 88-300 VDC / 70-265 VAC |
| Enclosure Environmental Protection | Pollution Degree 2, IEC 61000 EMC immune |
Firmware Flash Compatibility & Deterministic Network Interfaces
The relay utilizes a high-speed microprocessor bus that connects directly to non-volatile flash memory, enabling rapid execution of ANSI 50/51 and 50N/51N protection algorithms. The onboard deterministic network interfaces parse Modbus TCP, DNP3.0, and serial Modbus RTU frames concurrently without introducing latency to internal breaker trip logic execution. Furthermore, hardware-level channel isolation protects the internal bus architecture against transient common-mode voltage spikes generated by nearby high-voltage switching events, preserving continuous firmware operation during network polling cycle spikes.
Frequently Asked Questions
Q: What physical interfaces handle SCADA communications on this hardware variant?
A: The module incorporates one 10/100Base-T Ethernet port alongside dedicated serial RS-232 and RS-485 terminals, allowing concurrent polling via Ethernet Modbus TCP/DNP3.0 and serial Modbus RTU protocols.
Q: How do the 1 A CT inputs (P1 and G1) interface with external instrument transformers?
A: CT secondary wiring connects directly to the heavy-duty rear terminal blocks, accommodating 1 A secondary current loops for both 3-phase and ground fault current measurement.
Q: What auxiliary voltage levels power the universal power supply board?
A: The universal power supply operates within input ranges of 88 to 300 VDC or 70 to 265 VAC without requiring hardware jumpers or external drop resistors.
Field Installation Guidelines
Mount the chassis vertically into a panel cutout using the integrated mounting brackets to ensure physical stability under mechanical vibration. Run a short, low-impedance copper grounding wire from the panel earth bar directly to the rear grounding stud on the relay frame to dissipate electro-static transients and RF interference.
Separate low-voltage serial (RS-232/RS-485) and Ethernet data cables from AC current transformer leads and high-power trip circuit wiring inside the cabinet. Maintain a minimum separation distance of 200 mm between signal and power conduits to prevent electromagnetic crosstalk from distorting serial signal transmissions.